CN105119658B - The EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one - Google Patents
The EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one Download PDFInfo
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- CN105119658B CN105119658B CN201510566665.3A CN201510566665A CN105119658B CN 105119658 B CN105119658 B CN 105119658B CN 201510566665 A CN201510566665 A CN 201510566665A CN 105119658 B CN105119658 B CN 105119658B
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Abstract
Invention broadly provides the EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one,It is main to include multiple principal and subordinate's equipment integratings,Physical transfer equipment and center passive light optical branching device,The present invention combines the technology of EPON,Special EtherCAT principals and subordinates equipment integrating is constructed to realize each passing node equipments in ECATPON network structures,Physical transport layer is completed using single-mode fiber wavelength-division multiplex technique,Star Network central node is built using center passive optical splitter,It is of the invention novel in design,Topological structure originally centered on main website can be greatly improved,Transmission interference and the disturbed problem of active electric signal,Irredundant safeguard protection and be not suitable for the problem of long-distance transmissions,So that real-time industrial ethernet EtherCAT can be used for it is vehicle-mounted,It is carrier-borne,It is airborne to wait extreme environment field.
Description
Technical field：
The present invention relates to EPA automation control area, more particularly to ECATPON principal and subordinate's one EtherCAT
EPON stelliform connection topology configuration.
Background technology：
In this year, with the development of industry 4.0, industrial Ethernet technology already becomes the master in the fourth industrial revolution
Want one of core technology.And real-time industrial ethernet EtherCAT has become advanced technical standard in a kind of global range.
The design object of EtherCAT is the Ethernet of support standard, and can be opened in real-time control field with minimum hardware cost
Exhibition is used, and the update cycle is fast, and stability is high.These features so that EtherCAT turns into motion control, process control, distribution
The ideal chose that measurement is applied with control.
But the network structure of conventional EtherCAT is mainly tree structure or ring junction with main website as starting point at present
Structure.And the star-like prolongation structure centered on main website of only a few, but also mainly communicated using CAT5-e active cables
Transmission, central master station needs the Ethernet interface matched with slave station number.Meanwhile, the communication of whole network all relies on main website
Distribution and scheduling, once main website breaks down, then face the possibility of whole network paralysis.Also, the communications of active cable,
Greatly limit the transmission range and application field of EtherCAT.The technology of the technology of the present invention combination EPON (PON)
Concept, constructs special EtherCAT principals and subordinates equipment integrating (MSI) to realize ECATPON network structures.Can realize without tight
Lattice principal and subordinate distinguishes；Without electromagnetic interference；Communication redundancy high；Ultra-long transmission distance；The EPA network topologies of high speed.
The content of the invention：
In order to solve the above problems, the invention provides a kind of topology knot that can be greatly improved originally centered on main website
Structure, the transmission of active electric signal disturb with disturbed problem, irredundant safeguard protection and are not suitable for the problem of long-distance transmissions,
So that real-time industrial ethernet EtherCAT can be used for the technical scheme in the extreme environment field such as vehicle-mounted, carrier-borne, airborne：
The EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one, it is main to include multiple principals and subordinates integrally
Equipment, physical transfer equipment and passive light optical branching device, multiple principal and subordinate's equipment integratings mainly include first principal and subordinate's equipment integrating,
Second principal and subordinate's equipment integrating, the 3rd principal and subordinate's equipment integrating, N principal and subordinate's equipment integratings, physical transfer equipment include single-mode fiber, nothing
Source light optical branching device is the optical branching device at Star Network center, and passive light optical branching device uses wavelength-division multiplex skill by single-mode fiber
Art carries out passive communication interactive connection with multiple principal and subordinate's equipment integratings；First principal and subordinate's equipment integrating mainly includes the first main website, the
Two slave station A, the 3rd slave station A, second principal and subordinate's equipment integrating mainly include the second main website B, the first slave station A, the 3rd slave station B, the 3rd
Principal and subordinate's equipment integrating mainly includes the 3rd main website, the first slave station B, the second slave station B；Passive light optical branching device includes that a melting is drawn
Taper type optical branching device and a planar waveguide-type optical branching device, fused tapered optical branching device have an input and 6-7
Output end, the input of planar waveguide-type optical branching device is connected with an output end of fused tapered optical branching device, passive light
The input of optical branching device is the input of fused tapered optical branching device, and the output end of passive light optical branching device is slab guide
The output end of type optical branching device and the output end of fused tapered optical branching device, planar waveguide-type optical branching device is by a light point
The fiber array coupling composition at road chip and two ends, the output port with an input port and 2 Nth power.
Preferably, the ECATPON network operations include in the following manner：
A, first principal and subordinate's equipment integrating need to send data to second principal and subordinate's equipment integrating and the 3rd principal and subordinate's equipment integrating, then
First principal and subordinate's equipment integrating needs to send first slave station A and threeth master of the data to second principal and subordinate's equipment integrating by the first main website
From the first slave station B of equipment integrating.
B, second principal and subordinate's equipment integrating need to send data to first principal and subordinate's equipment integrating and the 3rd principal and subordinate's equipment integrating, then
Second principal and subordinate's equipment integrating needs to send second slave station A and threeth master of the data to first principal and subordinate's equipment integrating by the second main website
From the second slave station B of equipment integrating.
C, the 3rd principal and subordinate's equipment integrating need to send data to first principal and subordinate's equipment integrating and second principal and subordinate's equipment integrating, then
3rd principal and subordinate's equipment integrating need by the 3rd main website send data to first principal and subordinate's equipment integrating the 3rd slave station A and second master
From the 3rd slave station B of equipment integrating.
The beneficial effects of the present invention are：
(1) present invention uses single-mode fiber, carries out the mode of wavelength-division multiplex to distinguish N set EtherCAT buses, so as to keep away
Exempt from the light interference between each EtherCAT bus.Because being transmitted using passive fiber, without worrying that whole network can be by the external world
The possibility of environmental disturbances, while also avoiding externally producing electromagnetism or radiation interference.
(2) central splitter that the present invention is used is passive device, can completely avoid the power supply of active equipment, use the longevity
The whole network that the problems such as life, equipment fault causes is paralysed.
(3) present invention can meet extensively train, aviation, ship, automobile, industrial automation factory etc. to transmission range,
Transmission rate, communication bandwidth, link safety, interference and radiation have the application of high request.
Brief description of the drawings：
Fig. 1 is system structure diagram of the invention；
Fig. 2 is passive light optical branching device schematic diagram of the invention.
Specific embodiment：
To make goal of the invention of the invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing to of the invention
Implementation method is described in further detail.
As shown in figure 1, the EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one, mainly include many
Individual principal and subordinate's equipment integrating, physical transfer equipment and passive light optical branching device 1, multiple principal and subordinate's equipment integratings mainly include the first master
From equipment integrating 2, second principal and subordinate's equipment integrating 3, the 3rd principal and subordinate's equipment integrating 4, N principal and subordinate's equipment integratings, wherein N is >=3
Integer, physical transfer equipment includes single-mode fiber 5, and passive light optical branching device 1 is the optical branching device at Star Network center, passive light
Optical branching device 1 carries out passive communication interactive connection using wavelength-division multiplex technique by single-mode fiber 5 with multiple principal and subordinate's equipment integratings,
First principal and subordinate's equipment integrating 2 mainly includes the first main website 21, the second slave station A22, the 3rd slave station A23, second principal and subordinate's equipment integrating 3
Mainly include the second main website 31, the first slave station A 32, the 3rd slave station B 33, the 3rd principal and subordinate's equipment integrating 4 is main including the 3rd master
Stand the 41, first slave station B 42, the second slave station B 43.
Principal and subordinate's equipment integrating is constituted using the PLD of SoC in the present embodiment, with special main website and slave station
IP kernel realizes MSI, because the flexible expansion of PLD and cutting performance so that any slave station points of expanding turn into
May.Meanwhile, by SoC technologies, main website can be simultaneously completed on a single chip and built, the EMSI in each network needs basis
The nodal point number N of whole Star Network come build in 1 main website and N-1 slave station, i.e. whole network can exist simultaneously N number of main website and
N × (N-1) individual slave station equipment, that is to say, that while N set EtherCAT buses circulatings in whole Star Network can be present
OK.
In the present embodiment, in order to the passive communication at star-like center is interacted, EMSI main websites are realized using passive optical splitter
Signal is sent to the communication broadcast of other node slave stations, it is necessary to meeting main website sends light intensity by that still can meet after N-1 branches
Slave station receives the minimum intensity of light for needing, as shown in Fig. 2 passive light optical branching device 1 includes a fused tapered optical branching
Device 11 and a planar waveguide-type optical branching device 12, fused tapered optical branching device 11 have an input and 6-7 outputs
End, the input of planar waveguide-type optical branching device 12 is connected with an output end of fused tapered optical branching device 11, passive light
The input of optical branching device 1 is the input of fused tapered optical branching device 11, and the output end of passive light optical branching device 1 is plane
The output end of waveguide optical splitter 12 and the output end of fused tapered optical branching device 11, planar waveguide-type optical branching device 12 by
The fiber array coupling composition at one optical branching chip and two ends, the output port with an input port and 2 Nth power,
N is >=1 integer herein.The central splitter that the present invention is used is passive device, can completely avoid the confession of active equipment
The whole network paralysis that the problems such as electricity, service life, equipment fault causes.
The ECATPON network operations include in the following manner in the present embodiment：
A, first principal and subordinate's equipment integrating 2 need to send data to second principal and subordinate's equipment integrating 3 and the 3rd principal and subordinate's equipment integrating
4, then first principal and subordinate's equipment integrating 2 need by the first main website 21 send data to second principal and subordinate's equipment integrating 3 the first slave station A
32 and the 3rd principal and subordinate's equipment integrating 4 the first slave station B 42.
B, second principal and subordinate's equipment integrating 3 need to send data to first principal and subordinate's equipment integrating 2 and the 3rd principal and subordinate's equipment integrating
4, then second principal and subordinate's equipment integrating 3 need by the second main website 31 send data to first principal and subordinate's equipment integrating 2 the second slave station A
22 and the 3rd principal and subordinate's equipment integrating 4 the second slave station B 43.
C, the 3rd principal and subordinate's equipment integrating 4 need to send data to first principal and subordinate's equipment integrating 2 and second principal and subordinate's equipment integrating
3, then the 3rd principal and subordinate's equipment integrating 4 need by the 3rd main website 41 send data to first principal and subordinate's equipment integrating 2 the 3rd slave station A
23 and second principal and subordinate's equipment integrating 3 the 3rd slave station B 33.
I.e. any principal and subordinate's equipment integrating can only outward be sent by the main website port of equipment, any one from station port all
It is used only to receive the data of other principal and subordinate's equipment integratings in automatic network.Inside principal and subordinate's equipment integrating, there is local CPU
All slave stations data for receiving and the data for needing to be sent by main website are processed by distributing corresponding ram space interacts work
Make.
Beneficial effects of the present invention with：It is of the invention novel in design, opening up centered on main website can be greatly improved originally
Flutter structure, the transmission interference of active electric signal and disturbed problem, irredundant safeguard protection and be not suitable for long-distance transmissions
Problem so that real-time industrial ethernet EtherCAT can be used for the extreme environment field such as vehicle-mounted, carrier-borne, airborne.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (2)
- The EtherCAT EPON stelliform connection topology configurations of 1.ECATPON principal and subordinate's one, it is characterised in that：It is main to include multiple Principal and subordinate's equipment integrating, physical transfer equipment and passive light optical branching device, multiple principal and subordinate's equipment integratings mainly include the first principal and subordinate Equipment integrating, second principal and subordinate's equipment integrating, the 3rd principal and subordinate's equipment integrating, N principal and subordinate's equipment integratings, N is the integer more than 3；Institute Stating physical transfer equipment includes single-mode fiber, and the passive light optical branching device is the optical branching device at Star Network center, the nothing Source light optical branching device carries out passive communication and interacts company using wavelength-division multiplex technique by single-mode fiber with multiple principal and subordinate's equipment integratings Connect；The first principal and subordinate equipment integrating mainly includes the first main website, the second slave station A, the 3rd slave station A, and second principal and subordinate is integrally Equipment mainly includes the second main website, the first slave station A, the 3rd slave station B, and the 3rd principal and subordinate's equipment integrating mainly includes the 3rd master Stand, the first slave station B, the second slave station B；The passive light optical branching device includes a fused tapered optical branching device and a plane Waveguide optical splitter, the fused tapered optical branching device has an input and 6-7 output ends, the plane wave The input of conductivity type optical branching device is connected with an output end of the fused tapered optical branching device, the passive light optical branching The input of device is the input of the fused tapered optical branching device, and the output end of the passive light optical branching device is described flat The output end of the output end of face waveguide optical splitter and the fused tapered optical branching device, the planar waveguide-type optical branching Device is made up of the fiber array coupling at an optical branching chip and two ends, the n power output ends with an input port and 2 Mouthful.
- 2. EtherCAT EPON stelliform connection topology configurations of ECATPON principals and subordinates one according to claim 1, it is special Levy and be：The ECATPON network operations include in the following manner：A, first principal and subordinate's equipment integrating need to send data to second principal and subordinate's equipment integrating and the 3rd principal and subordinate's equipment integrating, then and first Principal and subordinate's equipment integrating needs to send first slave station A and threeth principal and subordinate one of the data to second principal and subordinate's equipment integrating by the first main website First slave station B of body equipment；B, second principal and subordinate's equipment integrating need to send data to first principal and subordinate's equipment integrating and the 3rd principal and subordinate's equipment integrating, then and second Principal and subordinate's equipment integrating needs to send second slave station A and threeth principal and subordinate one of the data to first principal and subordinate's equipment integrating by the second main website Second slave station B of body equipment；C, the 3rd principal and subordinate's equipment integrating need to send data to first principal and subordinate's equipment integrating and second principal and subordinate's equipment integrating, then and the 3rd Principal and subordinate's equipment integrating needs to send threeth slave station A and second principal and subordinate one of the data to first principal and subordinate's equipment integrating by the 3rd main website 3rd slave station B of body equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510566665.3A CN105119658B (en) | 2015-09-08 | 2015-09-08 | The EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one |
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| CN201510566665.3A CN105119658B (en) | 2015-09-08 | 2015-09-08 | The EtherCAT EPON stelliform connection topology configurations of ECATPON principal and subordinate's one |
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| CN110428630B (en) * | 2019-09-10 | 2021-12-21 | 西安电子科技大学 | Road pedestrian detection system and networking method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347210A (en) * | 2001-11-15 | 2002-05-01 | 上海交通大学 | Code overlapped fast hopping optical CDMA access system |
| CN1745529A (en) * | 2003-02-13 | 2006-03-08 | 日本电信电话株式会社 | Optical communication network system |
| CN1901399A (en) * | 2006-07-10 | 2007-01-24 | 京信通信技术(广州)有限公司 | Repeater station capable of self adapting regulation group net mode and its data interacting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015089047A (en) * | 2013-10-31 | 2015-05-07 | 富士通オプティカルコンポーネンツ株式会社 | Optical reception device and transmission apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347210A (en) * | 2001-11-15 | 2002-05-01 | 上海交通大学 | Code overlapped fast hopping optical CDMA access system |
| CN1745529A (en) * | 2003-02-13 | 2006-03-08 | 日本电信电话株式会社 | Optical communication network system |
| CN1901399A (en) * | 2006-07-10 | 2007-01-24 | 京信通信技术(广州)有限公司 | Repeater station capable of self adapting regulation group net mode and its data interacting method |
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