CN108063736A - A kind of industrial ethernet switch that long-distance cable is supported to communicate and control method - Google Patents
A kind of industrial ethernet switch that long-distance cable is supported to communicate and control method Download PDFInfo
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- CN108063736A CN108063736A CN201610984624.0A CN201610984624A CN108063736A CN 108063736 A CN108063736 A CN 108063736A CN 201610984624 A CN201610984624 A CN 201610984624A CN 108063736 A CN108063736 A CN 108063736A
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- crosspoint
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- ethernet
- main control
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
-
- 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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/15—Interconnection of switching modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
Abstract
The invention discloses a kind of industrial ethernet switch that long-distance cable is supported to communicate and control methods.The interchanger includes power supply unit, CPU main control units, crosspoint and interface unit；The power supply unit provides power supply for CPU main control units, crosspoint and interface unit；The CPU main control units connect crosspoint, to be configured and be managed to crosspoint；The crosspoint includes ethernet switching module and PHY modules；The ethernet switching module forwards for the storage of Ethernet data；The digital signal that the PHY modules send ethernet switching module is converted into analog signal and sends, and the analog signal received is converted into digital signal and is sent to ethernet switching module；The interface unit is connected respectively with CPU main control units and crosspoint, and external interface is provided for interchanger.External increase repeater or other chromacoders can be not required in the present invention, support long-distance cable communication, have high reliability.
Description
Technical field
The present invention relates to ethernet communication field, more particularly, to a kind of industry that long-distance cable is supported to communicate with
Too network switch and control method.
Background technology
Ethernet（Ethernet）It is current most widely used local area network technology, including standard ethernet（10M）, it is quick
Ethernet（100M）, gigabit Ethernet（1G）With ten thousand mbit ethernets（10G）Etc., they all meet IEEE802.3 standards.Ether
Net transmission medium has coaxial cable, twisted-pair feeder, optical fiber etc..In ethernet communication, if using cable as transmission medium, it is theoretical
Upper transmission range（It is end-to-end）The upper limit is 100m, and transmission range only has 90m or so in practical application.Therefore some needs it is long away from
Occasion from communication, ethernet communication are then less applicable in.
For standard ethernet using coaxial cable as transmission medium, transmission rate only has 10Mbit/s, according to thick coaxial
Cable, maximum segment length 500m.Twisted-pair feeder and optical fiber can be used in Fast Ethernet and gigabit Ethernet, and ten thousand mbit ethernets are just
Can only fiber medium, the maximum segment length of twisted-pair feeder only has 100m, and the transmission range of fiber medium is typically all kilometer rank
's.
Twisted-pair cable is commonly used in practice, and theory only has the transmission range of 100m, is needing to carry out answering for long distance transmission
In, common practices is that repeater is installed between two sections of twisted-pair feeders, can at most install 4 repeaters, if 4 repeaters of installation
5 network segments are connected, then maximum transmission distance is up to 500m.But this method still has shortcoming：1）Need to increase additional equipment into
This, relay needs to power, and it is also relatively difficult that network segment middle introduces supply lines；2）After adding in relay, on network
Node device quantity increases, and the reliability standard of network reduces；Because the failure of relay can cause the failure of whole network,
The possible malfunctioning node quantity of whole network is equivalent to add.
In addition also some ways are that the analog signals of ethernet physical layer are converted into other analog signals, most common
, such as Ethernet electric signal is converted into optical signal, long distance transmission is carried out using optical fiber, transmission range is public up to tens
In；Or power line carrier is converted into, hundreds of meters can be realized to the transmission range of upper km etc. using the mode that pulsewidth is debugged.
Wherein photoelectric conversion module can be integrated into original interchanger inside or an individual module, be connected to exchange
The outlet port of machine.Be transmitted using optical fiber, it is necessary to increase optoelectronic transceivers, it is also desirable to increase additional cost, according to should
With scene, can just consider to use optical-fibre communications generally in especially remote transmission range.
In this specification, Ethernet：Ethernet；LDS:That is Link Discovery Signal, link discovery signal；
FLP:That is Fast Link Pluse, quick links pulse；PHY:（Physical Layer）Physical layer；Medium Dependent Interface：Network
Standard A class connections；Ethernet LAN Protocols as Defined In IEEE802.3 suite：802.3 innings of IEEE
Domain fidonetFido.
The content of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of support long-distance cable communication
, have high reliability industrial ethernet switch.
The above-mentioned purpose of the present invention is achieved by the following technical programs：
A kind of industrial ethernet switch that long-distance cable is supported to communicate is provided, including power supply unit, CPU main control units, is handed over
Change unit and interface unit；The power supply unit provides power supply for CPU main control units, crosspoint and interface unit；Institute
CPU main control units connection crosspoint is stated, to be configured and be managed to crosspoint；The crosspoint is handed over including Ethernet
Change the mold block and PHY modules；The ethernet switching module forwards for the storage of Ethernet data；The PHY modules are by ether
The digital signal that net Switching Module is sent is converted into analog signal and sends, and the analog signal received is converted into number
Signal is sent to ethernet switching module；The interface unit is connected respectively with CPU main control units and crosspoint, to hand over
It changes planes and external interface is provided.
Further, the CPU main control units include CPU processor and peripheral circuit, pass through interface and crosspoint
Connection.
Further, the PHY modules use the remote PHY chip of BCM54880 types.There are two types of work sides for PHY chip
Formula, one kind are normal modes, it then follows IEEE802.3 standards are, it can be achieved that the ethernet communication of 10/100Mbps, 1000Mbps；Separately
One kind is long range communication mode, and the ethernet communication of long range is realized under 10/100 Mbps rates.
Further, the ethernet switching module uses high-performance exchange chip.
Further, the interface unit includes electric interfaces and man-machine interface；The electric interfaces connect including Ethernet
Connect device interface；The man-machine interface shows interface including LED light, is used to indicate interchanger working condition and each Ethernet network interface
Communication state.
Further, the interface unit is equipped with terminator terminating junctor interface, for outside access innernal CPU processor.
In the present invention, power supply unit is powered for entire interchanger, and CPU main control units power on, by crosspoint
Management configuration, start crosspoint carry out long range communication；PHY chip in crosspoint will be by interface unit from other side
The analog signal that port transmission comes is converted into digital signal and is sent to exchange chip；Exchange chip is to the Ethernet data that receives
It is stored, and digital signal is sent to PHY chip, sent by PHY chip converting analogue signals.In communication process
In, it can be accessed by the terminator terminating junctor of interface unit to internal CPU processor, and pass through LED light and show interface judgement
The working condition of interchanger and the communication state of Ethernet network interface.
Another object of the present invention is to provide a kind of control for the industrial ethernet switch that long-distance cable is supported to communicate
Method processed, comprises the following steps：
S1.CPU main control units configure crosspoint；
Whether another end equipment for S2. judging interchanger network interface connection is the network interface for supporting long range communication mode；
S3. long range communication mode and normal mode are switched over by PHY chip；If interchanger network interface and the other end are set
Standby network interface supports long range communication mode, then carries out long range communication mode auto-negotiation；If the network interface for judging the other end is
Long range communication mode is not supported, then switches to normal mode auto-negotiation；
S4. complete to consult, confirm connection.
Further, the step S1 is specially：After CPU electrifying startups, crosspoint is carried out just by access interface
Beginningization configures initial operating mode and port status.
Further, before the step S1, by the switch configuration in the net that nodal distance is 100m to 500m
In network, the port of the interchanger interconnection at each node is arranged to long range communication mode.It is double by cable parameter and inside
The selection of twisted wire core logarithm, communication distance can farthest extend to 500m.
In nodal distance it is 100m to 300m by the switch configuration it is further preferred that before the step S1
Network in.The exchange apparatus needs the carry out whole network between 100m~300m particularly suitable for euclidean distance between node pair
Laying, communication speed is maintained at 100Mbps, full-duplex mode, and the port of the interchanger interconnection at each node is all in length
Distance communication pattern so on the network segment of similary length, can reduce number of devices during networking, reduce networking cost simultaneously
Into potential faulty equipment quantity is decreased, maintenance cost is reduced.
The work of the crosspoint is controlled and managed by CPU element.After CPU electrifying startups, pass through visit
It asks that interface initializes crosspoint, mainly configures the state etc. of its initial operating mode and port.Initialization
Pattern can be configured to long range communication mode, can also be configured to normal mode.
Realize the long distance transmission of Ethernet, another end equipment of interchanger and interchanger network interface connection must all prop up
Long range communication mode is held, and communication speed only supports 10/100 Mbps；And support the port of communication and normal mode over long distances
Port cannot carry out the Ethernet interconnection communication of long range, but can support cable routine distance（100m）Ether Netcom
News.Since long range communication mode can be compatible with to normal mode, but normal mode is without normal direction long range communication mode
It is compatible with, when initialization is configured to long range communication mode, need to judge whether opposite end is long distance transmission pattern.On one
Electricity, the port of crosspoint can send LDS pulses by interface unit to the port of another end equipment；LDS pulses are equivalent to one
A handshake, if other side port is also the network interface for supporting communication over long distances, one powers on and can also send LDS pulse signal mistakes
Come, two-port by the auto-negotiation mechanism of long range, find the information such as cable type, logarithm and the communication speed of other side and
Oneself is made comparisons, it is determined whether can connect and be communicated.If other side's network interface does not support long range communication mode, grow
Auto-negotiation under distance communication pattern is unsuccessful, and PHY chip can be automatically converted into the auto-negotiation mechanism in IEEE802.3u, that is, adopt
It is held consultation and shaken hands to other side port with transmission FLP signals, FLP signals are the Ethernet auto-negotiation signals under normal mode.When
When original state is configured to normal mode, switching port is directly carried out with the auto-negotiation mechanism of IEEE802.3u after the power is turned on, without
The negotiation mechanism of long range can be used.
Present applicant proposes a kind of designing schemes of new industrial ethernet switch device, come compared with the prior art
It says, has the advantages that：
（1）It can be achieved based on cable（Cat5 classes）Ethernet long distance transmission, the full duplex of 100Mbps is supported to fit, point-to-point
Transmission range for 100m~300m occasions, extras need not be increased, it is farthest up to 500m；
（2）The interchanger network interface has automatic detecting machine system, can select conventional distance communication pattern still according to other side's port capabilities
Long range communication mode；It is compatible preferable, available for the Ethernet networking for having long range communication need, it can also be used to lead to conventional
The switch network for interrogating distance carries out networking；
（3）The physical layer progress for switching in PHY chip, i.e. Ethernet of conventional distance communication pattern and long range communication mode,
Due to not being related to upper layer application and agreement, Ethernet data bag directly transmits, and not make any modification, be not take up system resource,
It is convenient to realize.
Description of the drawings
Fig. 1 is the principle schematic of interchanger.
Fig. 2 is the control flow schematic diagram of interchanger.
Specific embodiment
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is represented is only schematic diagram rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by attached drawing.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of industrial ethernet switchs that long-distance cable is supported to communicate.Interchanger bag
Include power supply unit, CPU main control units, crosspoint and interface unit.CPU main control units connect crosspoint, interface unit
It is connected respectively with CPU main control units unit and crosspoint.
Power supply unit is mainly to provide the power supply of whole device, it by external input DC+110V by voltage conversion circuit,
Output+5V is supplied to other functional circuits.
Interface unit is mainly to provide whole device external interface, including electric interfaces and man-machine interface.Electric interfaces bag
Include ethernet connector interface and terminator terminating junctor interface；Man-machine interface is primarily referred to as LED light and shows, and is used to indicate interchanger work
The communication state of state and each Ethernet network interface.
Main peripheral circuit needed for including CPU processor and composition CPU minimum systems inside CPU main control units, bag
Include DDR and Flash etc..The control whole device work operation of CPU main control units, carries out crosspoint initial configuration, management
Switch-activity is handled and recorded to the failure in operational process.CPU main control units are single to exchanging by dedicated interface
The work of member is configured and managed.Meanwhile it is external can be accessed by the terminator terminating junctor on interface unit inside CPU at
Device is managed, the upgrading of software or the configuration of entire module working condition can be carried out.
Crosspoint carries the major function of whole device.In the present embodiment, crosspoint includes Ethernet exchanging core
Piece and PHY chip.
Exchange chip is responsible for the storage forwarding of Ethernet data, is handed in the present embodiment using the high-performance of Broadcom companies
Chip is changed, there is 6.6Gbps exchange capacities, at most can externally expand 16 road 100Mbps PORT COMs, 4 road 1000Mbps ends
Mouthful.
For PHY chip as ethernet physical layer chip, effect is that the digital signal for sending exchange chip is converted into mould
Intend signal to send；Meanwhile the analog signal of reception is converted into digital signal and is sent to exchange chip, exchange chip passes through
Medium Dependent Interface is configured and managed to PHY.The present embodiment PHY chip selects company of Botong（Broadcom）BCM54880 types are remote
Apart from the remote PHY chip of PHY chip.For PHY chip there are two types of working method, one kind is normal mode, it then follows IEEE802.3 is marked
Standard is, it can be achieved that the ethernet communication of 10/100Mbps, 1000Mbps；Another kind is long range communication mode, in 10/100 Mbps
The ethernet communication of long range is realized under rate, under long range communication mode, can not realize the ethernet communication of 1000Mbps.It passes
Defeated distance it is far and near simultaneously and cable type and transmission rate also have certain relation, correspondence is as shown in table 1.By to line
The setting of cable and communication speed, farthest achievable communication distance are 500m.
Table 1
Ethernet networking is carried out with the interchanger, end to end ethernet communication, it can be by reducing transmission rate to 10Mbps
Or increase the network that demand pairs are disposed at 300m~500m communication distances.Can also only in a certain specific network segment, it is necessary into
During row long distance transmission, expand the network segment of a pair of of long distance transmission with the exchange apparatus, at the same other ports with it is conventional away from
From port connecting communication, compatibility is kept.
The present embodiment carries out Ethernet networking, and interchanger is spread in nodal distance for the network in 100m~300m
If；Communication speed is maintained at 100Mbps, full-duplex mode, and the port of the interchanger interconnection at each node is all in over long distances
Communication mode.
The control flow of interchanger is as shown in Figure 2.Comprise the following steps：
S1. electrifying startup, CPU configuration crosspoints；
It opens power supply unit to be powered for entire interchanger, after CPU main control unit electrifying startups, CPU processor passes through access
Interface initializes crosspoint, configures initial operating mode and port status；The initial pattern of crosspoint is matched somebody with somebody
It is set to long range communication mode.
S2.CPU manages exchange chip and PHY chip, starts crosspoint pair and the other end of crosspoint network interface connection
The operating mode of equipment is detected judgement；
The port of crosspoint can send LDS pulses by interface unit to the port of another end equipment, and LDS pulses are equivalent to one
A handshake, if other side port is also the network interface for supporting communication over long distances, one powers on and can also send LDS pulse signal mistakes
Come, judge whether other side's port working pattern is to support long range communication mode with this；The auto-negotiation that two-port passes through long range
Mechanism finds the information such as cable type, logarithm and the communication speed of other side and oneself makes comparisons, it is determined whether Ke Yilian
It connects and is communicated.
S3. long range communication mode and normal mode are switched over by PHY chip；
S4. complete to consult, confirm connection；
If interchanger network interface and the network interface of another end equipment support long range communication mode, long range communication mode is carried out
Auto-negotiation completes connection（Link）Process；If the network interface of the other end is judged not support long range communication mode, crosspoint
PHY chip is automatically converted into normal mode and other side port and carries out normal mode auto-negotiation, send FLP signals to other side port into
Row is consulted to shake hands, and FLP signals are the Ethernet auto-negotiation signals under normal mode, to complete to connect（Link）Process；Started
Journey terminates, and starts to communicate.
During communication, PHY chip by by interface unit from other side port transmit come analog signal be converted into digital signal
It is sent to exchange chip；Exchange chip stores the Ethernet data received, and digital signal is sent to PHY cores
Piece is sent by PHY chip converting analogue signals.
In communication process, it can be accessed by the terminator terminating junctor interface of interface unit to internal CPU processor,
And pass through LED light and show interface and judge the working condition of interchanger and the communication state of Ethernet network interface.
The present embodiment employs a kind of new industrial ethernet switch device designing scheme, is communicated by cable,
Transmission range can reach 300m under full duplex 100Mbps, can farthest extend to 500m.Its port is in connecting cable
Ethernet communication is carried out, outside need not increase repeater or other chromacoders, and reliability is high, especially suitable for one
As Long Range Ethernet communication occasion.
Obviously, above-described embodiment is only intended to clearly illustrate technical scheme example, and is not
Restriction to embodiments of the present invention, above-mentioned hardware work(can also be completed by being integrated with processor and logical resource single-chip SOC
Energy.For those of ordinary skill in the art, can also make on the basis of the above description other various forms of
Variation changes.There is no necessity and possibility to exhaust all the enbodiments.Within the spirit and principles of the invention
All any modification, equivalent and improvement made etc., should be included within the protection domain of the claims in the present invention.
Claims (10)
1. a kind of industrial ethernet switch that long-distance cable is supported to communicate, which is characterized in that including power supply unit, CPU master
Control unit, crosspoint and interface unit；The power supply unit carries for CPU main control units, crosspoint and interface unit
Power supply source；The CPU main control units connect crosspoint, to be configured and be managed to crosspoint；The crosspoint bag
Include ethernet switching module and PHY modules；The ethernet switching module forwards for the storage of Ethernet data；The PHY
The digital signal that module sends ethernet switching module is converted into analog signal and sends, and the analog signal that will be received
It is converted into digital signal and is sent to ethernet switching module；The interface unit respectively with CPU main control units and crosspoint
It is connected, external interface is provided for interchanger.
2. the industrial ethernet switch according to claim 1 for supporting long-distance cable communication, which is characterized in that described
CPU main control units include CPU processor and peripheral circuit, are connected by interface with crosspoint.
3. the industrial ethernet switch according to claim 1 for supporting long-distance cable communication, which is characterized in that described
PHY modules use the remote PHY chip of BCM54880 types.
4. the industrial ethernet switch according to claim 3 for supporting long-distance cable communication, which is characterized in that described
Ethernet switching module uses high-performance exchange chip.
5. the industrial ethernet switch according to claim 4 for supporting long-distance cable communication, which is characterized in that described
Interface unit includes electric interfaces and man-machine interface；The electric interfaces include ethernet connector interface；The man-machine interface
Interface is shown including LED light, is used to indicate the communication state of interchanger working condition and each Ethernet network interface.
6. the industrial ethernet switch according to claim 5 for supporting long-distance cable communication, which is characterized in that described
Interface unit is equipped with terminator terminating junctor interface, for outside access innernal CPU processor.
7. a kind of Industrial Ethernet of the support long-distance cable communication referred to described in claim 1 to 6 any one exchanges
The control method of machine, which is characterized in that when the PHY modules are PHY chip, comprise the following steps：
S1.CPU main control units configure crosspoint；
Whether another end equipment for S2. judging interchanger network interface connection is the network interface for supporting long range communication mode；
S3. by PHY chip to being switched over over long distances with normal mode；If the network interface of interchanger network interface and another end equipment
It supports long range communication mode, then carries out long range communication mode auto-negotiation；If the network interface of the other end is judged not support to grow
Distance communication pattern then switches to normal mode auto-negotiation；
S4. complete to consult, confirm connection.
8. the control method of the industrial ethernet switch according to claim 7 that long-distance cable is supported to communicate, special
Sign is that the step S1 is specially：After CPU electrifying startups, crosspoint is initialized by access interface, configuration is just
The communication mode and port status of beginning.
9. the control method of the industrial ethernet switch of the support long-distance cable communication according to claim 7 or 8,
It is characterized in that, before the step S1, in the network for being 100m to 500m in nodal distance by the switch configuration, each
The port of interchanger interconnection at node is arranged to long range communication mode.
10. the control method of the industrial ethernet switch according to claim 9 that long-distance cable is supported to communicate, special
Sign is, before the step S1, in the network for being 100m to 300m in nodal distance by the switch configuration.
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| CN201610984624.0A CN108063736A (en) | 2016-11-09 | 2016-11-09 | A kind of industrial ethernet switch that long-distance cable is supported to communicate and control method |
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| CN201610984624.0A CN108063736A (en) | 2016-11-09 | 2016-11-09 | A kind of industrial ethernet switch that long-distance cable is supported to communicate and control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106949A (en) * | 2019-11-15 | 2020-05-05 | 苏州浪潮智能科技有限公司 | Method and equipment for managing multiple Phy chips of switch |
| CN111324321A (en) * | 2018-12-14 | 2020-06-23 | 西安诺瓦星云科技股份有限公司 | Display control card, display control system and vehicle |
| CN111555968A (en) * | 2020-04-30 | 2020-08-18 | 重庆长安新能源汽车科技有限公司 | Ethernet gateway capable of configuring port mode and vehicle |
| CN114430368A (en) * | 2021-12-15 | 2022-05-03 | 惠州市德赛西威汽车电子股份有限公司 | Ethernet burning system and burning method |
| CN115017085A (en) * | 2022-08-05 | 2022-09-06 | 江西联创精密机电有限公司 | Data transmission system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050068993A1 (en) * | 2002-08-29 | 2005-03-31 | Russell John Paul | Frame based data transmission over synchronous digital hierarchy network |
| CN101442563A (en) * | 2008-12-17 | 2009-05-27 | 杭州华三通信技术有限公司 | Data communication method and Ethernet equipment |
| CN104954208A (en) * | 2015-05-06 | 2015-09-30 | 深圳市吉祥腾达科技有限公司 | Method and system for extending data transmission distance of Ethernet switch |
| CN105743820A (en) * | 2016-04-21 | 2016-07-06 | 大连理工大学 | ARM+FPGA-architecture-based Ethernet switch for train |
-
2016
- 2016-11-09 CN CN201610984624.0A patent/CN108063736A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050068993A1 (en) * | 2002-08-29 | 2005-03-31 | Russell John Paul | Frame based data transmission over synchronous digital hierarchy network |
| CN101442563A (en) * | 2008-12-17 | 2009-05-27 | 杭州华三通信技术有限公司 | Data communication method and Ethernet equipment |
| CN104954208A (en) * | 2015-05-06 | 2015-09-30 | 深圳市吉祥腾达科技有限公司 | Method and system for extending data transmission distance of Ethernet switch |
| CN105743820A (en) * | 2016-04-21 | 2016-07-06 | 大连理工大学 | ARM+FPGA-architecture-based Ethernet switch for train |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111324321A (en) * | 2018-12-14 | 2020-06-23 | 西安诺瓦星云科技股份有限公司 | Display control card, display control system and vehicle |
| CN111106949A (en) * | 2019-11-15 | 2020-05-05 | 苏州浪潮智能科技有限公司 | Method and equipment for managing multiple Phy chips of switch |
| CN111555968A (en) * | 2020-04-30 | 2020-08-18 | 重庆长安新能源汽车科技有限公司 | Ethernet gateway capable of configuring port mode and vehicle |
| CN111555968B (en) * | 2020-04-30 | 2022-03-15 | 重庆长安新能源汽车科技有限公司 | Ethernet gateway capable of configuring port mode and vehicle |
| CN114430368A (en) * | 2021-12-15 | 2022-05-03 | 惠州市德赛西威汽车电子股份有限公司 | Ethernet burning system and burning method |
| CN114430368B (en) * | 2021-12-15 | 2023-06-30 | 惠州市德赛西威汽车电子股份有限公司 | Ethernet burning system and burning method |
| CN115017085A (en) * | 2022-08-05 | 2022-09-06 | 江西联创精密机电有限公司 | Data transmission system and method |
| CN115017085B (en) * | 2022-08-05 | 2022-11-08 | 江西联创精密机电有限公司 | Data transmission system and method |
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Application publication date: 20180522 |
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