CN106789101B - A kind of network interface Bypass system and its implementation being switched fast - Google Patents
A kind of network interface Bypass system and its implementation being switched fast Download PDFInfo
- Publication number
- CN106789101B CN106789101B CN201611161297.5A CN201611161297A CN106789101B CN 106789101 B CN106789101 B CN 106789101B CN 201611161297 A CN201611161297 A CN 201611161297A CN 106789101 B CN106789101 B CN 106789101B
- Authority
- CN
- China
- Prior art keywords
- bypass
- analog
- network interface
- relay
- lan2
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
The present invention provides a kind of network interface Bypass systems and its implementation being switched fast, network interface Bypass system includes CPU, the CPU carries PHY1 and PHY2, the PHY1 is connected with Transformer1, the PHY2 is connected with Transformer2, Analog Switch1 is connected between the Transformer1 and LAN1, Analog Switch2 is connected between the Transformer2 and LAN2, Relay Switch, the Analog Switch1 and the Analog Switch2 are connected between the LAN1 and the LAN2 by BYPASS _ VCC and carrying capacitances to supply power；It is added to high-speed analog switch, is able to satisfy and powers on the network interface of Bypass and lower electricity Bypass and switch at high speed, reduce network delay, improve network communication real-time, Bypass switch speed is fast, and network interface can permanent retention Bypass state after power down.
Description
Technical field
The invention belongs to industrial fireproof wall field more particularly to a kind of network interface Bypass systems and its realization being switched fast
Method.
Background technique
Network Security Device generally all has the function of network interface Bypass.The main function of existing network interface Bypass system or equipment
Energy component is relay, realizes that the state of network interface Bypass and non-Bypass switch by the unlatching and closure of relay,
Still the linkage function of network is able to maintain in the case where power-off.But the physics that is switched to of relay switches, switch speed is slower
And stability is poor.
Summary of the invention
In view of this, for overcome the deficiencies in the prior art, the present invention provides a kind of network interface Bypass system being switched fast
System and its implementation greatly improve the switch speed of network outside the repertoire for maintaining traditional network interface Bypass.
To achieve the above object, technical scheme is as follows:
A kind of network interface Bypass system being switched fast, network interface Bypass system includes CPU, and the CPU carries PHY1
And PHY2, the PHY1 are connected with Transformer1, the PHY2 is connected with Transformer2, described
It is connected with Analog Switch1 between Transformer1 and LAN1, is connected with Analog between the Transformer2 and LAN2
Switch2 is connected with Relay Switch, the Analog Switch1 and the Analog between the LAN1 and the LAN2
Switch2 is by BYPASS_VCC and carries capacitances to supply power.
Further, described to carry the tantalum capacitor that capacitor is 470 microfarads.
Further, the bifurcated of the signal wire of the Analog Switch1 and LAN1 is no more than 1000 mils；It is described
The bifurcated of the signal wire of Analog Switch2 and the LAN2 is no more than 1000 mils.
Further, when system mode is normal, the Transformer1 and the LAN1 pass through the Analog
Switch1 is connected；The Transformer2 is connected with the LAN2 by the Analog Switch2.
Further, system mode is when powering on Bypass, and the LAN1 and the LAN2 pass through the Analog
Switch1 is connected with the Analog Switch2.
Further, when system mode is lower electricity Bypass, the LAN1 and the LAN2 pass through the Relay Switch
It is connected.
The present invention also provides a kind of methods of network interface Bypass system realized and be switched fast, comprising the following steps:
1) when system mode is normal, Analog_ctrl and Relay_ctrl are " 1 ", and Bypass function is closed, LAN1
With LAN2 be general independent network interface, the data flow of LAN1 is successively are as follows: LAN1, Analog Switch1, Transformer1,
PHY1 and CPU；The data flow of LAN2 is successively are as follows: LAN2, Analog Switch2, Transformer2, PHY2 and CPU；
2) system mode is when powering on Bypass, and Analog_ctrl is " 0 ", and Relay_ctrl is " 1 ", by analog switch
It realizes that Bypass function is opened, realizes that Bypass function is closed by relay, data flow is successively are as follows: LAN1, Analog
Switch1,Analog Switch2,LAN2；
3) when system mode is lower electricity Bypass, under system after electric or abnormity of power supply, Analog Switch1 and Analog
Switch2 does not work, and relay is normally closed relay, in the case where default, realizes that Bypass function is opened by relay, number
Successively according to flow direction are as follows: LAN1, Relay Switch, LAN2.
The invention has the benefit that being added to high-speed analog switch, it is able to satisfy and powers on Bypass's and lower electricity Bypass
Network interface switches at high speed, and reduces network delay, improves network communication real-time, Bypass switch speed is fast, and network interface can be forever after power down
Kubo holds Bypass state.
1) it may be implemented to power on being switched fast between Bypass state and non-Bypass state；
2) network interface from current state automatically switches to Bypass state after lower electricity may be implemented；
3) transplantability is good, and Bypass module external interface is universal network interface, can be used as complex device or complicated embedded system
The built-in module of system；
4) network interface enters permanent Bypass state after power down, and communication robust is good.
Detailed description of the invention
Fig. 1 is a kind of network interface Bypass system block diagram being switched fast.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, a kind of network interface Bypass system being switched fast, network interface Bypass system includes CPU, and CPU takes
Carry PHY1 and PHY2, PHY1 is connected with Transformer1, and PHY2 is connected with Transformer2, Transformer1 and
Be connected with Analog Switch1 between LAN1, be connected with Analog Switch2 between Transformer2 and LAN2, LAN1 and
Relay Switch is connected between LAN2, Analog Switch1 and Analog Switch2 are by BYPASS_VCC and carry capacitor
Power supply.
Wherein, PHY1 and PHY2 is networked physics layer chip, such as the 88E1111 of Marvell, passes through MAC
Interface (physical layer interface) is connected with CPU.
Transformer1 and Transformer2 is (network) transformer, protection PHY chip, such as WE's
749020023。
Analog Switch1 and Analog Switch2: analog switch, one of system core device carry out network path
Switch at high speed, use the MAX4892 of Maxim；Network switching speed is nanosecond (ns) rank；Need live line work.
Relay Switch: relay switch, one of system core device carry out the switching of network path, electricity under system
When, relay automatically switches to normally off；Bypass access is maintained, network switching speed is millisecond (ms) rank；This system
Normally closed property relay, such as G6K-2F-Y-24V can only be selected.
LAN1 and LAN2: network interface, Network Cable Connector.
Wherein, MDI ±: network differential signal,
Network differential signal of the MDI ± A ' between Transformer1 and Analog Switch1；
Network differential signal of the MDI ± A between Analog Switch1 and LAN1；
Network differential signal of the MDI ± B ' between Transformer2 and Analog Switch2；
Network differential signal of the MDI ± B between Analog Switch2 and LAN2；
Carry capacitor be 470 microfarads tantalum capacitor, the big capacitance storage capacitor of Bypass_VCC must choose it is sufficiently large,
Guarantee the time that can maintain analog switch conducting ms rank after a loss of power, specific capacitance is subject to real system；Ordinary circumstance
Under, add the tantalum capacitor of a 470uF.
The bifurcated of the signal wire of LAN1 is no more than 1000 mils；The bifurcated of the signal wire of LAN2 is no more than 1000 mils.Print
When board design processed, the bifurcated of MDI ± signal wire is as short as possible.
When system mode is normal, Transformer1 is connected with LAN1 by Analog Switch1；
Transformer2 is connected with LAN2 by Analog Switch2.
System mode is when powering on Bypass, and LAN1 and LAN2 pass through Analog Switch1 and Analog Switch2 phase
Connection.That is LAN1 is connected with Analog Switch1, and Analog Switch1 is connected with Analog Switch2, Analog
Switch2 is connected with LAN2.
When system mode is lower electricity Bypass, LAN1 is connected with LAN2 by Relay Switch.
A method of realizing the network interface Bypass system being switched fast:
1) when system mode is normal, Analog_ctrl and Relay_ctrl are " 1 ", and Bypass function is closed, LAN1
With LAN2 be general independent network interface, the data flow of LAN1 is successively are as follows: LAN1, Analog Switch1, Transformer1,
PHY1 and CPU；The data flow of LAN2 is successively are as follows: LAN2, Analog Switch2, Transformer2, PHY2 and CPU；
2) system mode is when powering on Bypass, and Analog_ctrl is " 0 ", and Relay_ctrl is " 1 ", by analog switch
It realizes that Bypass function is opened, realizes that Bypass function is closed by relay, data flow is successively are as follows: LAN1, Analog
Switch1,Analog Switch2,LAN2；
3) when system mode is lower electricity Bypass, under system after electric or abnormity of power supply, Analog Switch1 and Analog
Switch2 does not work, and relay is normally closed relay, in the case where default, realizes that Bypass function is opened by relay, number
Successively according to flow direction are as follows: LAN1, Relay Switch, LAN2.
It is a kind of realize the network interface Bypass system being switched fast be switched fast explanation:
In the system, realize that the case where fast B ypass switches is broadly divided into following three kinds:
It powers on from normal operating conditions to the switching for powering on Bypass: being realized by Analog_ctrl control analog switch,
Analog_ctrl becomes " 0 " from " 1 ".Control is easy, and realizes that simply switch speed was up to for tens nanoseconds.
Switching of the lower electricity from the Bypass that analog switch the is realized Bypass realized to relay: lower electricity moment, Analog_
Ctrl is " 0 ", and Relay_ctrl becomes " 0 " since relay is physics switching from " 1 ", and switching time is slow, about counts
Millisecond.In order to guarantee in this several milliseconds time, network communication is not interrupted, and the BYPASS_VCC to power to analog switch is added to
One big capacitance storage capacitor, such analog switch will continue to maintain a period of time, be also about several milliseconds of time.Several milliseconds
Afterwards, analog switch stops working, and relay has switched to normally off, continues to system Bypass function.The switching
The core devices of journey are the storage capacitors of big capacitance, and the storage capacitor of this big capacitance is the tantalum capacitor of 470 microfarads, ensure that network
Normal communication.
The switching for the Bypass that lower electricity is realized from normal condition to relay: lower electricity moment, Analog_ctrl are become by " 1 "
For " 0 ", Relay_ctrl becomes " 0 " from " 1 ", and since the corresponding speed of analog switch is fast, network switching only needed for tens nanoseconds,
And the network switching of relay needs several milliseconds.Therefore, system can immediately be switched to and realize Bypass function by analog switch
State, and after maintaining several milliseconds under the action of big capacitance tantalum capacitor, after relay switches to normally off, continue to be
System Bypass function.The core concept of the handoff procedure is the rapid switching function for taking full advantage of analog switch and normally closed relay
The high stability of device realizes being switched fast for system Bypass function.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of network interface bypass Bypass system being switched fast, network interface Bypass system includes CPU, and the CPU carries net
Network physical chip 1PHY1 and networked physics layer chip 2PHY2, the PHY1 are connected with network transformer 1Transformer1
It connects, the PHY2 is connected with network transformer 2Transformer2, it is characterised in that: the Transformer1 and network interface
It is connected with analog switch 1Analog Switch1 between 1LAN1, simulation is connected between the Transformer2 and network interface 2LAN2
Switch 2Analog Switch2 is connected with relay switch Relay Switch between the LAN1 and the LAN2, described
The Analog Switch1 and Analog Switch2 is by bypass supply BYPASS_VCC and carries capacitances to supply power；
When system mode is normal, the Transformer1 is connected with the LAN1 by the Analog Switch1；
The Transformer2 is connected with the LAN2 by the Analog Switch2；
System mode is when powering on Bypass, and the LAN1 and the LAN2 pass through the Analog Switch1 and described
Analog Switch2 is connected；
When system mode is lower electricity Bypass, the LAN1 is connected with the LAN2 by the Relay Switch.
2. a kind of network interface Bypass system being switched fast according to claim 1, it is characterised in that: the carrying capacitor
For the tantalum capacitor of 470 microfarads.
3. a kind of network interface Bypass system being switched fast according to claim 1, it is characterised in that: the Analog
The bifurcated of the signal wire of Switch1 and the LAN1 is no more than 1000 mils；The Analog Switch2's and LAN2
The bifurcated of signal wire is no more than 1000 mils.
4. a kind of method for realizing the network interface bypass Bypass system being switched fast, which comprises the following steps:
1) when system mode is normal, analog switch controls the trigger signal Analog_ctrl and relay of Bypass channel selector
The trigger signal Relay_ctrl that device controls Bypass channel selector is " 1 ", and bypass Bypass function is closed, network interface 1LAN1
It is general independent network interface with network interface 2LAN2, the data flow of LAN1 is successively are as follows: LAN1, analog switch 1Analog
Switch1, network transformer 1Transformer1, networked physics layer chip 1PHY1 and CPU；The data flow of LAN2 is successively
Are as follows: LAN2, analog switch 2Analog Switch2, network transformer 2Transformer2, networked physics layer chip 2PHY2 and
CPU；
2) system mode is when powering on Bypass, and Analog_ctrl is " 0 ", and Relay_ctrl is " 1 ", is realized by analog switch
Bypass function open, by relay realize Bypass function close, data flow is successively are as follows: LAN1, Analog Switch1,
Analog Switch2,LAN2；
3) when system mode is lower electricity Bypass, under system after electric or abnormity of power supply, Analog Switch1 and Analog
Switch2 does not work, and relay is normally closed relay, in the case where default, realizes that Bypass function is opened by relay, number
Successively according to flow direction are as follows: LAN1, relay switch RelaySwitch, LAN2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161297.5A CN106789101B (en) | 2016-12-15 | 2016-12-15 | A kind of network interface Bypass system and its implementation being switched fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611161297.5A CN106789101B (en) | 2016-12-15 | 2016-12-15 | A kind of network interface Bypass system and its implementation being switched fast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106789101A CN106789101A (en) | 2017-05-31 |
| CN106789101B true CN106789101B (en) | 2019-09-13 |
Family
ID=58891367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611161297.5A Active CN106789101B (en) | 2016-12-15 | 2016-12-15 | A kind of network interface Bypass system and its implementation being switched fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106789101B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282370A (en) * | 2018-01-30 | 2018-07-13 | 合肥同智机电控制技术有限公司 | A kind of hardware based network data interchanging system |
| CN109600325A (en) * | 2018-12-21 | 2019-04-09 | 北京卓越信通电子股份有限公司 | A kind of quick bypass industrial grade switch with isolation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006094286A (en) * | 2004-09-27 | 2006-04-06 | Yazaki Corp | Network repeating installation |
| CN102340418A (en) * | 2011-07-14 | 2012-02-01 | 北京星网锐捷网络技术有限公司 | Bypass protection device and method |
| CN206350009U (en) * | 2016-12-15 | 2017-07-21 | 中船重工（武汉）凌久电子有限责任公司 | A kind of network interface Bypass systems being switched fast |
-
2016
- 2016-12-15 CN CN201611161297.5A patent/CN106789101B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006094286A (en) * | 2004-09-27 | 2006-04-06 | Yazaki Corp | Network repeating installation |
| CN102340418A (en) * | 2011-07-14 | 2012-02-01 | 北京星网锐捷网络技术有限公司 | Bypass protection device and method |
| CN206350009U (en) * | 2016-12-15 | 2017-07-21 | 中船重工（武汉）凌久电子有限责任公司 | A kind of network interface Bypass systems being switched fast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106789101A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106789101B (en) | A kind of network interface Bypass system and its implementation being switched fast | |
| CN106095037A (en) | Processing equipment and corresponding control methods | |
| WO2019062172A1 (en) | Simulation model and method for direct current circuit breaker, and storage medium | |
| WO2014032395A1 (en) | Anti-interference switching value transmission circuit | |
| CN109062392A (en) | It is a kind of to automatically switch equipment, the method and system that server board is powered | |
| CN103633619B (en) | Based on the main transformer backup protection Accelerated trip method sharing information across interval | |
| CN204089183U (en) | A kind of can the Anti-surging mains switch protective circuit of frequent | |
| CN103683510B (en) | Intelligent switch control device with phase selection control and wave self-recording functions and method | |
| CN206350009U (en) | A kind of network interface Bypass systems being switched fast | |
| CN108832695A (en) | Direct current micro-grid system, charge circuit circuit and its control method | |
| CN205901764U (en) | Net gape BYPASS system | |
| CN104299808B (en) | A kind of isolation switch control system | |
| CN105305595B (en) | A kind of distribution holding circuit applied to airborne equipment | |
| CN204189728U (en) | A kind of functional module of circuit breaker and circuit breaker | |
| CN208539613U (en) | Direct current micro-grid system and charge circuit circuit | |
| CN204928095U (en) | Protection circuit of intelligence power module | |
| CN204167134U (en) | A kind of isolation switch control system | |
| CN203643814U (en) | Digital quantity output circuit and digital quantity output board card | |
| CN202384832U (en) | Double-power supply automatic selector switch | |
| CN103762714A (en) | Switching device for achieving switching control over multiple power systems | |
| CN103683175A (en) | Outdoor intelligent protection device at time of three-phase inconsistence and input method thereof | |
| CN107702298A (en) | It is provided with the air cooler intelligent power supply control system of triggering enhancing circuit | |
| CN203261125U (en) | Self-powered digital relay | |
| CN206727427U (en) | Medium voltage switchgear equipment | |
| CN110265970A (en) | Equipment power supply protection circuit and control method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 718, Luoyu Road, Hongshan District, Wuhan City, Hubei Province 430000 Patentee after: China Shipbuilding Lingjiu Electronics (Wuhan) Co.,Ltd. Address before: No. 718, Luoyu Road, Hongshan District, Wuhan City, Hubei Province 430000 Patentee before: CSIC (WUHAN) LINCOM ELECTRONICS Co.,Ltd. |