CN205647558U - CAN and ARCNET dual network communication board - Google Patents
CAN and ARCNET dual network communication board Download PDFInfo
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- CN205647558U CN205647558U CN201620350447.6U CN201620350447U CN205647558U CN 205647558 U CN205647558 U CN 205647558U CN 201620350447 U CN201620350447 U CN 201620350447U CN 205647558 U CN205647558 U CN 205647558U
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Abstract
The utility model discloses a CAN and ARCNET dual network communication board, a serial communication port, include: ISA module (1), CPLD (2), CAN module (3) and ARCNET module (4), wherein: ISA module (1) and CPLD (2) link to each other, and ISA module (1) is equallyd divide with CPLD (2) and is do not linked to each other with CAN module (3) and ARCNET module (4), CAN module (3) have one to keep apart the power with ARCNET module (4) are all built -in. Does this scheme realize ISA through single integrated circuit board simultaneously CAN protocol conversion and ISA ARCNET protocol conversion, two kinds of protocol conversion can be realized simultaneously to an integrated circuit board, can insert the external equipment of two kinds of different interfaces simultaneously to the lowering system volume, in addition, the integrated circuit board is inside to use one set of power, and external network output part adopts one set of power, and outside network disturbs inside unable cluster goes into the integrated circuit board, improves the stability and the interference killing feature of integrated circuit board.
Description
Technical field
This utility model relates to data communication technology field, particularly relates to a kind of CAN Yu ARCNET Dual Network Communication plate.
Background technology
CAN controller LAN and ARCNET LAN since coming out, due to its high traffic rate, high reliability,
The outstanding features such as the easy to connect and high ratio of performance to price, firmly get the favor of many commercial Application departments, widely should
It is used in many applications such as automobile, Digit Control Machine Tool medical apparatus and instruments.
Railway system's equipment becomes increasingly complex at present, and from strength to strength, integrated equipment gets more and more function, distinct device
The interface mode needing group-net communication, distinct device many times to provide is inconsistent, and such distinct device communication just encounters
Problem.As the equipment of CAN interface communication needs to be changed by one piece of CAN protocol transducer, ARCNET interface protocol
Equipment need one piece of ARCNET protocol converter to change, which adds the board quantity of system, add and be
The volume of system, adds the trouble point of system, to the reliability of system, energy-conservation is all negatively affected.
As it is shown in figure 1, be the schematic diagram of protocol converter in prior art；In prior art, agreement turns as can be seen from Figure 1
Change single, ISA-CAN protocol conversion, or ISA-ARCNET protocol conversion can only be realized, can not in complication system
The equipment simultaneously realizing various protocols interface is directly accessed.The most existing protocol converter is internal uses unified power supply, electricity
Source does not isolates, and this design can enter external disturbance by bus string, affects system stability and anti-interference.
Utility model content
The purpose of this utility model is to provide a kind of CAN Yu ARCNET Dual Network Communication plate, can be concurrently accessed two kinds of differences
The external equipment of interface, and improve stability and the capacity of resisting disturbance of board.
The purpose of this utility model is achieved through the following technical solutions:
A kind of CAN Yu ARCNET Dual Network Communication plate, including: ISA module 1, CPLD 2, CAN module 3 and
ARCNET module 4；Wherein:
ISA module 1 is connected with CPLD 2, and ISA module 1 and CPLD 2 respectively with CAN module 3 and ARCNET
Module 4 is connected；Described CAN module 3 is all built-in with an insulating power supply with ARCNET module 4.
Further, described CAN module 3 includes:
CAN transceiver, two photoelectrical couplers, insulating power supply, CAN controller, microprocessor and dual port RAM；
Wherein:
The high and low level port of the side of described CAN transceiver connects CAN, and the sending and receiving port of opposite side leads to respectively
Cross a photoelectrical coupler and connect CAN controller；Described CAN transceiver, microprocessor and dual port RAM connect successively
Connect；Described insulating power supply connects two photoelectrical couplers and CAN transceiver respectively.
Further, described ARCNET module 4 includes: ARCNET controller, insulating power supply and two ARCNET
Transceiver；One end of said two ARCNET transceiver is all connected with ARCNET bus, and the other end is all connected with ARCNET
Controller, described insulating power supply is connected with two ARCNET transceivers respectively.
The technical scheme provided by above-mentioned this utility model is it can be seen that realize ISA-CAN agreement by single board simultaneously
Conversion and ISA-ARCNET protocol conversion, one piece of board can realize two kinds of protocol conversions simultaneously, can be concurrently accessed two kinds not
With the external equipment of interface, thus reduce system bulk；Additionally, board is internal uses a set of power supply, outer network is exported
Part uses a set of power supply, outside network interferences cannot seal in inside board, improves the stability of board and anti-interference energy
Power.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only more of the present utility model implement
Example, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these
Accompanying drawing obtains other accompanying drawings.
The schematic diagram of protocol converter in the prior art that Fig. 1 provides for this utility model background technology；
The structural representation of a kind of CAN Yu ARCNET Dual Network Communication plate that Fig. 2 provides for this utility model embodiment；
The CAN module internal structure schematic diagram that Fig. 3 provides for this utility model embodiment；
The internal structure schematic diagram of the ARCNET module that Fig. 4 provides for this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than all
Embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into protection domain of the present utility model.
The structural representation of a kind of CAN Yu ARCNET Dual Network Communication plate that Fig. 2 provides for this utility model embodiment.As
Shown in Fig. 2, it specifically includes that ISA module 1, CPLD 2, CAN module 3 and ARCNET module 4；Wherein:
ISA module 1 is connected with CPLD 2, and ISA module 1 and CPLD 2 respectively with CAN module 3 and ARCNET
Module 4 is connected；Described CAN module 3 is all built-in with an insulating power supply with ARCNET module 4.
Described CAN module 3 specifically include that CAN transceiver, two photoelectrical couplers, insulating power supply, CAN controller,
Microprocessor and dual port RAM；Wherein:
The high and low level port of the side of described CAN transceiver connects CAN, and the sending and receiving port of opposite side leads to respectively
Cross a photoelectrical coupler and connect CAN controller；Described CAN transceiver, microprocessor and dual port RAM connect successively
Connect；Described insulating power supply connects two photoelectrical couplers and CAN transceiver respectively.
Described ARCNET module 4 specifically includes that ARCNET controller, insulating power supply and two ARCNET transmitting-receivings
Device；One end of said two ARCNET transceiver is all connected with ARCNET bus, and the other end is all connected with ARCNET control
Device, described insulating power supply is connected with two ARCNET transceivers respectively.
Described ISA module 1: can provide the slot of 96 cores, passes for the agreement and data connecting host computer and board
Defeated.
Described CPLD 2: be used for CAN module 3, the logic control of ARCNET module 4 and sequencing contro.
CAN module 3: Fig. 3 is CAN module 3 internal structure schematic diagram, completes CAN agreement by this structure and turns
Change.CAN protocol conversion has been the isa bus conversion with CAN agreement.4K byte-sized can be used
Dual port RAM carries out agreement and data exchange, microprocessor (AT89C52) control, pass through CAN controller
(SJA1000T) complete the conversion of isa bus agreement and CAN agreement, and pass through CAN transceiver
(PCA82C250) data in transmitting-receiving CAN；CAN transceiver and photoelectrical coupler are individually supplied by insulating power supply
Electricity, in case the impact that board inside is caused by the electromagnetic interference of outside or voltage instability.
ARCNET module 4: Fig. 4 is the internal structure schematic diagram of ARCNET module 4, is completed by this structure
ARCNET protocol conversion.ARCNET protocol conversion has been the conversion with ARCNET bus protocol of the isa bus agreement.
The COM20022 (built-in dual port RAM) of SMSC company can be used as ARCNET controller, COM20022
Chip internal is integrated with the dual port RAM of 2K*8 position, and data transfer rate reaches as high as 10Mbps, can be fully achieved
ARCNET data link layer protocol, simplifies the software design flow process of system.ARCNET controller completes isa bus association
View and the conversion of ARCNET bus protocol, and carried out by ARCNET transceiver (HYC9088 or HYC4000)
The transmitting-receiving of ARCNET bus data.
Insulating power supply uses the design of NR5S5/100 insulating power supply, and inside chip and external bus transceiver isolated from power are divided
Open, do not interfere with each other.
In this utility model such scheme, realize ISA-CAN protocol conversion and ISA-ARCNET by single board simultaneously
Protocol conversion, one piece of board can realize two kinds of protocol conversions simultaneously, can be concurrently accessed the external equipment of two kinds of distinct interfaces,
Thus reduce system bulk；Additionally, board is internal uses a set of power supply, outer network output unit is divided employing a set of power supply,
Outside network interferences cannot seal in inside board, improves stability and the capacity of resisting disturbance of board.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model not office
Being limited to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in
Change or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model
Should be as the criterion with the protection domain of claims.
Claims (3)
1. CAN Yu an ARCNET Dual Network Communication plate, it is characterised in that including: ISA module (1), CPLD
(2), CAN module (3) and ARCNET module (4)；Wherein:
ISA module (1) is connected with CPLD (2), and ISA module (1) and CPLD (2) respectively with CAN module
(3) and ARCNET module (4) be connected；Described CAN module (3) is all built-in with ARCNET module (4)
One insulating power supply.
A kind of CAN Yu ARCNET Dual Network Communication plate the most according to claim 1, it is characterised in that described
CAN module (3) including:
CAN transceiver, two photoelectrical couplers, insulating power supply, CAN controller, microprocessor and dual port RAM；
Wherein:
The high and low level port of the side of described CAN transceiver connects CAN, and the sending and receiving port of opposite side leads to respectively
Cross a photoelectrical coupler and connect CAN controller；Described CAN transceiver, microprocessor and dual port RAM connect successively
Connect；Described insulating power supply connects two photoelectrical couplers and CAN transceiver respectively.
A kind of CAN Yu ARCNET Dual Network Communication plate the most according to claim 1, it is characterised in that described
ARCNET module (4) including: ARCNET controller, insulating power supply and two ARCNET transceivers；Described two
One end of individual ARCNET transceiver is all connected with ARCNET bus, and the other end is all connected with ARCNET controller, described every
It is connected with two ARCNET transceivers respectively from power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350447.6U CN205647558U (en) | 2016-04-22 | 2016-04-22 | CAN and ARCNET dual network communication board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620350447.6U CN205647558U (en) | 2016-04-22 | 2016-04-22 | CAN and ARCNET dual network communication board |
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| Publication Number | Publication Date |
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| CN205647558U true CN205647558U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620350447.6U Active CN205647558U (en) | 2016-04-22 | 2016-04-22 | CAN and ARCNET dual network communication board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181658A (en) * | 2017-06-13 | 2017-09-19 | 中车大连电力牵引研发中心有限公司 | Dual communication system based on ARCNET and Ethernet |
-
2016
- 2016-04-22 CN CN201620350447.6U patent/CN205647558U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181658A (en) * | 2017-06-13 | 2017-09-19 | 中车大连电力牵引研发中心有限公司 | Dual communication system based on ARCNET and Ethernet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 100091 2018, 2 floor, 1 building, 7 Fengxian Road, Haidian District, Beijing. Patentee after: Beijing GZXA System Control Technology Co., Ltd. Address before: 100094 Beijing Haidian District Yongfeng industrial base, new material business building B block 4. Patentee before: Beijing GZXA System Control Technology Co., Ltd. |
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| CP02 | Change in the address of a patent holder |