CN110768880A - Ethernet network node, fault processing method, computer device and storage medium - Google Patents
Ethernet network node, fault processing method, computer device and storage medium Download PDFInfo
- Publication number
- CN110768880A CN110768880A CN201911047884.5A CN201911047884A CN110768880A CN 110768880 A CN110768880 A CN 110768880A CN 201911047884 A CN201911047884 A CN 201911047884A CN 110768880 A CN110768880 A CN 110768880A
- Authority
- CN
- China
- Prior art keywords
- network node
- automation network
- ethernet control
- control automation
- output interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
-
- 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
-
- 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
- H04L2012/4026—Bus for use in automation systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses an Ethernet control automation network node, a fault processing method, computer equipment and a storage medium, wherein the Ethernet control automation network node comprises a main controller, an input interface, an output interface and a short-circuit device, wherein the main controller is connected with the short-circuit device; the main controller is configured to monitor a communication state of the ethernet control automation network node, and control the short-circuit device to short-circuit the input interface and the output interface when the ethernet control automation network node fails. Above-mentioned ethernet control automation network node can carry out the short circuit through the input interface and the output interface of short circuit device with EtherCAT node when EtherCAT node breaks down, and message information will directly send to other EtherCAT nodes to realize the bypass to the trouble node, guarantee ethernet control automation network's normal communication.
Description
Technical Field
Embodiments of the present invention relate to network communication technologies, and in particular, to an ethernet network node, a fault processing method, a computer device, and a storage medium.
Background
An ethernet control automation (EtherCAT) network is an ethernet-based field bus that can support a variety of topologies and has excellent real-time performance, and thus is widely used in the field of industrial automation.
The traditional EtherCAT network can compensate the fault of a single-section cable through cable redundancy so as to keep the operation of the EtherCAT network, but if the EtherCAT node is in fault, the EtherCAT network cannot operate normally.
Disclosure of Invention
Based on this, the present invention provides an ethernet control automation network node, a fault handling method, a computer device, and a storage medium, which can ensure that the ethernet control automation network can operate normally when a single node fails.
In a first aspect, an embodiment of the present invention provides an ethernet control automation network node, including a main controller, an input interface, an output interface, and a short-circuit device, where the main controller is connected to the short-circuit device;
the main controller is configured to monitor a communication state of the ethernet control automation network node, and control the short-circuit device to short-circuit the input interface and the output interface when the ethernet control automation network node fails.
Above-mentioned ethernet control automation network node can carry out the short circuit through the input interface and the output interface of short circuit device with EtherCAT node when EtherCAT node breaks down, and message information will directly send to other EtherCAT nodes to realize the bypass to the trouble node, guarantee ethernet control automation network's normal communication.
In one embodiment, the input interface and the output interface each include a signal receiving end and a signal transmitting end; the short-circuit device is respectively connected between the signal receiving end of the input interface and the signal sending end of the output interface, and between the signal sending end of the input interface and the signal receiving end of the output interface.
In one embodiment, the shorting device is a double-pole normally closed contact; under the condition that the Ethernet control automation network node is in normal communication, the double-pole normally closed contact is in an off state; and under the condition that the Ethernet control automation network node fails, the double-pole normally closed contact is in a closed state.
In one embodiment, the ethernet control automation network node further comprises a port physical layer and a slave station controller, wherein the port physical layer is connected with the input interface and the output interface respectively; the slave station controller is respectively in communication connection with the port physical layer and the master controller, and is used for controlling the Ethernet control automation network node to perform networking.
In one embodiment, the input interface and the output interface are BroadR-Reach interfaces.
In one embodiment, the input interface and the output interface are wired by a single unshielded twisted pair.
In a second aspect, an embodiment of the present invention further provides a fault handling method, which is applied to the ethernet control automation network node, where the method includes:
acquiring a communication state of an Ethernet control automation network node;
and under the condition that the Ethernet control automation network node fails, carrying out short circuit on the input interface and the output interface.
According to the fault processing method, when the EtherCAT node has a fault, the input interface and the output interface of the EtherCAT node are subjected to short circuit through the short circuit device, and the message information is directly sent to other EtherCAT nodes, so that a bypass of the fault node is realized, and normal communication of the Ethernet control automation network is ensured.
In one embodiment, after the step of shorting the input interface and the output interface, the method further comprises:
and sending the message data passing through the failed Ethernet control automation network node to an adjacent Ethernet control automation network node.
In a third aspect, an embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the fault handling method as described above when executing the program.
In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is configured to implement the fault handling method as described above when executed by a processor.
Drawings
FIG. 1 is a schematic diagram of an Ethernet controlled automation network node in one embodiment;
FIG. 2 is a schematic diagram of an Ethernet controlled automation network node in another embodiment;
FIG. 3 is a flow diagram illustrating a method for fault handling in one embodiment;
fig. 4 is a flowchart illustrating a fault handling method according to another embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a flowchart illustrating an ethernet control automation network node according to an embodiment, and as shown in fig. 1, in an embodiment, an ethernet control automation network node 100 includes a main controller 120, an input interface 140, an output interface 160, and a shorting device 180, where the main controller 120 is connected to the shorting device 180; the main controller 120 is configured to monitor a communication state of the ethernet control automation network node 100, and control the short circuit device 180 to short-circuit the input interface 140 and the output interface 160 when the ethernet control automation network node 100 fails.
Specifically, an ethernet control automation (EtherCAT) network is a network bus commonly used in the field of industrial automation, the EtherCAT network uses a full-duplex ethernet physical layer, an EtherCAT network slave station generally has 2 to 4 physical communication interfaces, and one physical communication supports one input interface or one output interface. In the EtherCAT network node 100, the input interface 140 and the output interface 160 are used for communicating message information with other nodes in the EtherCAT network, and the main controller 120 is used for controlling and managing the whole node. When the EtherCAT network node 100 works, the main controller 120 can monitor the working state of the EtherCAT network node 100 in real time, when the main controller 120 monitors that the communication state of the node fails, the main controller 120 can control the short-circuit device 180 to work, the short-circuit device 180 can short-circuit the input interface 140 and the output interface 160, after short-circuit, when message information is sent to the input interface 140 of the EtherCAT network node 100, the message information can be directly sent to other nodes connected with the node from the output interface 160 in a bypass mode without passing through the node with the communication failure, and therefore the normal communication of the whole EtherCAT network can not be affected when the communication failure of the EtherCAT network node 100 occurs.
Further, in the EtherCAT network node 100, the main controller 120 may be a single chip or other processing chip. The specification and model of the input interface 140 and the output interface 160 may be determined according to actual communication requirements, for example, the input interface 140 and the output interface 160 may specifically be ethernet interfaces such as RJ45 or BroadR-Reach, the input interface 140 and the output interface 160 may be connected to a port Physical layer (PHY) controller supporting a corresponding protocol, and the input interface 140 and the output interface 160 may respectively include a plurality of connection ports to be connected to interfaces of other nodes by twisted pair cables or the like. The short-circuit device 180 may be specifically connected to the connection ports of the input interface 140 and the output interface 160, or may be connected to a cable between the input interface 140 and the output interface 160, and the short-circuit device 180 may also be connected between input and output interfaces connected to adjacent physical interfaces in the EtherCAT network, which may also implement short-circuit of the input interface 140 and the output interface 160 of the EtherCAT network node 100 with a fault.
The ethernet control automation network node 100 can perform short circuit on the input interface 140 and the output interface 160 of the EtherCAT node through the short circuit device 180 when the EtherCAT node fails, and the message information is directly sent to other EtherCAT nodes, so that a bypass of the failed node is realized, and normal communication of the ethernet control automation network is ensured.
In one embodiment, the input interface 140 and the output interface 160 each include a signal receiving terminal RX and a signal transmitting terminal TX; the shorting device 180 is respectively connected between the signal receiving terminal RX of the input interface 140 and the signal transmitting terminal TX of the output interface 160, and between the signal transmitting terminal TX of the input interface 140 and the signal receiving terminal RX of the output interface 160. In the EtherCAT network node 100, the input port 140 and the output interface 160 are both full-duplex interfaces, and both include two ports, namely a receiving end RX and a transmitting end TX, which are respectively used for receiving and transmitting data, wherein a short-circuit device 180 is disposed between the receiving end RX of the input interface 140 and the transmitting end TX of the output interface 160, and a short-circuit device 180 is disposed between the transmitting end TX of the input interface 140 and the receiving end TX of the output interface 160. The short-circuit device 180 may specifically be a switch or other devices, and the short-circuit device 180 between the input interface 140 and the output interface 160 may be independent devices respectively disposed between two sets of ports, or one short-circuit device 180 may be a line that can be simultaneously connected to two sets of ports.
Fig. 2 is a schematic structural diagram of an ethernet control automation network node in another embodiment, as shown in fig. 2, in an embodiment, based on the foregoing technical solution, the ethernet control automation network node 200 includes a main control device 220, an input interface 230, and an output interface 240, which may be respectively the same as corresponding structures in the foregoing embodiment, and the short-circuit device in this embodiment is a dual-pole normally closed contact 280; under the condition that the communication of the ethernet control automation network node 200 is normal, the double-pole normally closed contact 280 is in an open state; in the event of a failure of ethernet control automation network node 200, dual pole normally closed contact 280 is in a closed state.
Specifically, the short-circuit device of the EtherCAT network node 200 in this embodiment is a two-pole normally closed contact 280, where the two-pole normally closed contact 280 specifically includes two groups of contacts, and the two groups of contacts are normally communicated in an open state when being powered on, and are switched to a closed state when not being powered on. The two sets of contacts are respectively connected between the receiving terminal RX of the input interface 240 and the transmitting terminal TX of the output interface 260, and between the transmitting terminal TX of the input interface 240 and the receiving terminal TX of the output interface 260. When the EtherCAT network node 200 normally operates without a communication fault, current passes through the input interface 240 and the output interface 260, the double-pole normally closed contact 280 is in an open state, and message data can be communicated in the EtherCAT network node 200 through the input interface 240 and the output interface 260. When the main controller 220 monitors that the Ethercat network module 200 has a communication fault, no current passes through the input interface 240 and the output interface 260, the double-pole normally closed contact 280 is switched to a closed state, the faulted Ethercat network node 200 is bypassed, and message information is directly sent to other adjacent nodes through short-circuited lines.
In one embodiment, the ethernet control automation network node 200 further comprises a port physical layer and slave station controller 230, the port physical layer being connected to the input interface and the output interface, respectively; the slave station controller 230 is communicatively connected to the port physical layer and the master controller 220, respectively, and the slave station controller 230 is configured to control the ethernet control automation network node 200 for networking.
Specifically, the input interface 240 and the output interface are respectively connected with the slave station controller 230 through a PHY, which may support an MII interface or the like. The slave station controller 230 may be a network chip supporting EtherCAT, and a plurality of EtherCAT network nodes 200 may form an EtherCAT network under the control of the slave station controller 230, where one EtherCAT network slave station includes two or more ports. If the slave station controller 230 of the EtherCAT network node 200 does not detect other devices downstream, the slave station controller 230 will automatically close the corresponding interface and return the ethernet frame, so that a plurality of nodes form an EtherCAT network with topology structures such as bus, tree or star.
Further, in one embodiment, the input interface 240 and the output interface 260 are BroadR-Reach interfaces. The Broadr-Reach interface is a network interface used by an automobile product and introduced by the company of Botong, is compatible with a 100Base T1 protocol, can provide 100Mbps and higher broadband performance, and reduces the interconnection cost by as much as 80% by adopting the Broadr-Reach interface compared with the traditional vehicle-mounted network interface. In a preferred embodiment, to simplify the wiring method, the input interface 240 and the output interface 260 adopt a single pair of unshielded twisted pair wiring method, so that the weight of the cable can be reduced by up to 30% compared with the traditional vehicle-mounted network interface, and the cost and the applicability are further reduced.
Fig. 3 is a schematic flowchart of a fault handling method in an embodiment, as shown in fig. 1, in an embodiment, a fault handling method is applied to an ethernet control automation network node in the above embodiment, where the method includes:
step S520: and acquiring the communication state of the Ethernet control automation network node.
Step S540: and under the condition that the Ethernet control automation network node fails, carrying out short circuit on the input interface and the output interface.
Specifically, a plurality of EtherCAT network nodes are arranged in the EtherCAT network, the running state of each EtherCAT network node is obtained in real time, whether the communication function of each EtherCAT network node fails is judged according to the obtained state data, and when the EtherCAT node fails, the input interface and the output interface of the EtherCAT network node can be controlled to be short-circuited, so that the failed EtherCAT network node is bypassed, and the message data cannot be sent to the failed EtherCAT network node. The input interface and the output interface of the EtherCAT network node can be short-circuited by setting short-circuiting devices at the input interface and the output interface. The short-circuit device can be a double-pole normally closed contact and the like, when the EtherCAT network node normally operates without communication faults, the input interface and the output interface are electrified in an electrified state, the double-pole normally closed contact 280 is in a disconnected state, and the Ethercat network node can communicate through the input interface and the output interface; when the communication fault of the EtherCAT network module is judged, the input interface and the output interface are not electrified, and the double-pole normally closed contact is closed, so that the input interface and the output interface of the faulted EtherCAT network node are in short circuit.
Fig. 4 is a schematic flowchart of a fault handling method in another embodiment, and as shown in fig. 4, in an embodiment, step S620 and step S640 of a fault control method may be respectively the same as corresponding steps of the foregoing embodiment, and the fault control method in this embodiment may further include:
step S660: and sending the message data passing through the failed Ethernet control automation network node to an adjacent Ethernet control automation network node.
Specifically, the EtherCAT network includes a plurality of EtherCAT network nodes, and after finding the EtherCAT network node with the fault and short-circuiting an input interface and an output interface of the EtherCAT network node, other nodes or devices transmit message data to the EtherCAT network node through a short-circuited line through the input interface and directly transmit the message data to the output interface, so that the EtherCAT network node with the fault is bypassed and transmitted to other adjacent EtherCAT network nodes, and therefore, when the EtherCAT node with the fault occurs, communication of the whole EtherCAT network can still normally operate.
According to the fault processing method, when the EtherCAT node has a fault, the input interface and the output interface of the EtherCAT node are in short circuit, and the message information is directly sent to other EtherCAT nodes, so that a bypass of the fault node is realized, and normal communication of the Ethernet control automation network is ensured.
In one embodiment, a computer device is provided that includes a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor, when running the program, may perform the steps of: acquiring a communication state of an Ethernet control automation network node; and under the condition that the Ethernet control automation network node fails, carrying out short circuit on the input interface and the output interface.
It is understood that the computer device provided by the embodiment of the present invention, the processor of which executes the program stored in the memory, is not limited to the method operations described above, and can also execute the related operations in the ethernet control automation network node provided by any embodiment of the present invention.
Further, the number of processors in the computer may be one or more, and the processors and the memory may be connected by a bus or other means. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory located remotely from the processor, which may be connected to the device/terminal/server via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
In one embodiment, the present invention also provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, causes the processor to perform the steps of: acquiring a communication state of an Ethernet control automation network node; and under the condition that the Ethernet control automation network node fails, carrying out short circuit on the input interface and the output interface.
It is understood that the computer-readable storage medium containing the computer program according to the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the ethernet control automation network node according to any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above embodiments only represent the preferred embodiments of the present invention and the applied technical principles, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. Numerous variations, changes and substitutions will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An Ethernet control automation network node is characterized by comprising a main controller, an input interface, an output interface and a short-circuit device, wherein the main controller is connected with the short-circuit device;
the main controller is configured to monitor a communication state of the ethernet control automation network node, and control the short-circuit device to short-circuit the input interface and the output interface when the ethernet control automation network node fails.
2. The ethernet control automation network node of claim 1, wherein the input interface and the output interface each comprise a signal receiving end and a signal transmitting end; the short-circuit device is respectively connected between the signal receiving end of the input interface and the signal sending end of the output interface, and between the signal sending end of the input interface and the signal receiving end of the output interface.
3. The ethernet control automation network node of claim 2, wherein the shorting device is a two-pole normally closed contact; under the condition that the Ethernet control automation network node is in normal communication, the double-pole normally closed contact is in an off state; and under the condition that the Ethernet control automation network node fails, the double-pole normally closed contact is in a closed state.
4. The ethernet control automation network node of claim 1, further comprising a port physical layer and a slave station controller, the port physical layer being connected to the input interface and the output interface, respectively; the slave station controller is respectively in communication connection with the port physical layer and the master controller, and is used for controlling the Ethernet control automation network node to perform networking.
5. An ethernet controlled automation network node as claimed in claim 1, wherein the input interface and the output interface are BroadR-Reach interfaces.
6. An ethernet control automation network node as claimed in claim 5 wherein said input interface and said output interface are wired using a single unshielded twisted pair.
7. A fault handling method applied to an ethernet control automation network node according to any of the preceding claims 1 to 6, characterized in that the method comprises:
acquiring a communication state of an Ethernet control automation network node;
and under the condition that the Ethernet control automation network node fails, carrying out short circuit on the input interface and the output interface.
8. The method of claim 7, wherein after the step of shorting the input interface to the output interface, the method further comprises:
and sending the message data passing through the failed Ethernet control automation network node to an adjacent Ethernet control automation network node.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the fault handling method according to claim 7 or 8 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the fault handling method according to claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047884.5A CN110768880A (en) | 2019-10-30 | 2019-10-30 | Ethernet network node, fault processing method, computer device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047884.5A CN110768880A (en) | 2019-10-30 | 2019-10-30 | Ethernet network node, fault processing method, computer device and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110768880A true CN110768880A (en) | 2020-02-07 |
Family
ID=69333212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911047884.5A Pending CN110768880A (en) | 2019-10-30 | 2019-10-30 | Ethernet network node, fault processing method, computer device and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110768880A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111338329A (en) * | 2020-05-20 | 2020-06-26 | 季华实验室 | A robot servo system and its fault debugging method, device, and electronic equipment |
| CN112269699A (en) * | 2020-11-11 | 2021-01-26 | 上海新时达机器人有限公司 | Aging test method and device, EtherCAT main station and system, and storage medium |
| CN114124590A (en) * | 2021-11-26 | 2022-03-01 | 交控科技股份有限公司 | Safety circuit, communication method and device applied to Ethernet communication equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937562A (en) * | 2005-09-20 | 2007-03-28 | 国际商业机器公司 | Optimizing the speed of an fc-al switch domain in a data storage network |
| CN101785201A (en) * | 2007-06-15 | 2010-07-21 | 格库技术有限公司 | Providing a bypass switch to bypass a failed node |
| CN102880143A (en) * | 2012-09-27 | 2013-01-16 | 中国船舶重工集团公司第七一九研究所 | Single control area network (CAN) controller hot-redundant CAN bus system and implementation method thereof |
| CN104253708A (en) * | 2014-09-01 | 2014-12-31 | 南车株洲电力机车研究所有限公司 | Bypass relay device for network communication |
| WO2015130907A1 (en) * | 2014-02-28 | 2015-09-03 | Rasband Paul B | Establishing links between sub-nets |
| CN108134704A (en) * | 2017-12-28 | 2018-06-08 | 清华大学 | A kind of tape jam diagnosis and the ethernet concentrator of isolation features |
-
2019
- 2019-10-30 CN CN201911047884.5A patent/CN110768880A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937562A (en) * | 2005-09-20 | 2007-03-28 | 国际商业机器公司 | Optimizing the speed of an fc-al switch domain in a data storage network |
| CN101785201A (en) * | 2007-06-15 | 2010-07-21 | 格库技术有限公司 | Providing a bypass switch to bypass a failed node |
| CN102880143A (en) * | 2012-09-27 | 2013-01-16 | 中国船舶重工集团公司第七一九研究所 | Single control area network (CAN) controller hot-redundant CAN bus system and implementation method thereof |
| WO2015130907A1 (en) * | 2014-02-28 | 2015-09-03 | Rasband Paul B | Establishing links between sub-nets |
| CN104253708A (en) * | 2014-09-01 | 2014-12-31 | 南车株洲电力机车研究所有限公司 | Bypass relay device for network communication |
| CN108134704A (en) * | 2017-12-28 | 2018-06-08 | 清华大学 | A kind of tape jam diagnosis and the ethernet concentrator of isolation features |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111338329A (en) * | 2020-05-20 | 2020-06-26 | 季华实验室 | A robot servo system and its fault debugging method, device, and electronic equipment |
| CN111338329B (en) * | 2020-05-20 | 2020-08-25 | 季华实验室 | Robot servo system, fault debugging method and device thereof, and electronic equipment |
| CN112269699A (en) * | 2020-11-11 | 2021-01-26 | 上海新时达机器人有限公司 | Aging test method and device, EtherCAT main station and system, and storage medium |
| CN112269699B (en) * | 2020-11-11 | 2023-01-31 | 上海新时达机器人有限公司 | Aging test method and device, etherCAT main station and system, and storage medium |
| CN114124590A (en) * | 2021-11-26 | 2022-03-01 | 交控科技股份有限公司 | Safety circuit, communication method and device applied to Ethernet communication equipment |
| CN114124590B (en) * | 2021-11-26 | 2023-07-21 | 交控科技股份有限公司 | Safety circuit applied to Ethernet communication equipment, communication method and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10514739B2 (en) | Power over ethernet management devices and connection between ethernet devices | |
| CN103581164B (en) | For can carry out in the industrial communication network of redundant operation the method for message transmission and for can redundant operation industrial communication network communication equipment | |
| US9647879B2 (en) | Network backup device and network system | |
| CN203206272U (en) | CAN network system having fault detection function | |
| JP4946851B2 (en) | Frame transfer method and frame transfer apparatus | |
| CN110768880A (en) | Ethernet network node, fault processing method, computer device and storage medium | |
| CN115695069B (en) | Dual-terminal logic annular CAN bus network system | |
| KR101825030B1 (en) | Ring network apparatus and system using PoE and network recovering method for the system | |
| US8959386B2 (en) | Network and expansion unit and method for operating a network | |
| EP2858302A1 (en) | Connectivity check method of service stream link, related apparatus and system | |
| CN111585791A (en) | Data synchronization configuration method, system and storage medium | |
| WO2018077124A1 (en) | Method, device, and system for service alarm processing | |
| US9438744B2 (en) | Method and data transmission device for data transmission within an xDSL data transmission system connecting at least two ethernet networks via xDSL links | |
| CN108737673B (en) | Network telephone equipment, external connection card and communication method of network telephone equipment | |
| CN102611567A (en) | Dual-computer backup networking system and message transmission method | |
| CN101252525A (en) | Method and apparatus for backing up link in PON network | |
| CN110752957B (en) | Ethernet control automation network node and message analysis equipment thereof | |
| US20150365253A1 (en) | Network system | |
| CN111526224B (en) | Emergency network communication method, gateway and computer readable storage medium | |
| JP5199976B2 (en) | Optical IP branching apparatus, optical communication system, optical communication method, and optical communication program | |
| JP3812668B2 (en) | Link-up method and link-up system for each port of switching hub | |
| JP6460278B1 (en) | Network management apparatus, method, and program | |
| JP7346172B2 (en) | communication equipment | |
| JP2009246611A (en) | Method of transmitting trace request for operation maintenance management, management end point device, program, and data structure | |
| CN116846817A (en) | A message processing method, communication system and related devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |
|
| RJ01 | Rejection of invention patent application after publication |