CN209842384U - Reinforced CAN and exchange card - Google Patents
Reinforced CAN and exchange card Download PDFInfo
- Publication number
- CN209842384U CN209842384U CN201920970472.8U CN201920970472U CN209842384U CN 209842384 U CN209842384 U CN 209842384U CN 201920970472 U CN201920970472 U CN 201920970472U CN 209842384 U CN209842384 U CN 209842384U
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- CN
- China
- Prior art keywords
- card
- output
- control chip
- output interface
- pair
- 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.)
- Expired - Fee Related
Links
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 230000005693 optoelectronics Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Lock And Its Accessories (AREA)
Abstract
The utility model relates to a consolidate CAN and add commuter card, add the commuter card body including CAN, CAN card circuit includes the bridge piece, a pair of CAN card master control chip, a pair of optoelectronic isolation module, a pair of CAN bus transceiver and output interface, CAN card master control chip all is connected through bridge piece and computer motherboard bus electricity, the output of CAN card master control chip is connected with CAN bus transceiver electricity behind the optoelectronic isolation module, CAN bus transceiver's output even has output interface, the output and the output interface electricity of commuter card are connected. The utility model discloses a there are two tunnel CAN card owner to control chip and computer motherboard bus electricity and be connected, realize redundant control, if the CAN card breaks down all the way, the computer CAN normally work, and CAN card and exchange card integration are on a circuit board, an output interface of sharing, have practiced thrift the connector of computer, the extension of the computer peripheral of being convenient for, in addition, CAN card circuit has the photoelectric isolation, and the interference killing feature is strong.
Description
Technical Field
The utility model relates to a computer technology field especially relates to a consolidate CAN and add exchange card.
Background
CAN (Controller Area Network) Controller Area Network (CAN), wherein CAN bus data of the CAN card is transmitted and received by the CAN Controller and the CAN transceiver. The card of the interface is widely applied in the automobile industry and is rapidly developed in the fields of industrial control, robots, medical instruments, sensors and the like. In order to expand the function of the CAN bus, the CAN adapter card with the CAN interface and the PC interface is connected with a computer and is used for collecting information of each node on the CAN bus, transmitting the information to the PC, transmitting commands and data of the PC to each node and finishing partial monitoring and management work of a user system on the CAN bus. The switch card is connected with the main network, and all computers communicate with each other through the switch card, at present, the CAN card for the common computer CAN not realize the redundancy control, once the CAN card breaks down all the way, the computer CAN not work normally, in addition, the CAN card and the switch card are divided into two circuit boards, and two connectors of the computer need to be occupied, thereby influencing the peripheral expansion of the computer.
Disclosure of Invention
The utility model discloses aim at solving prior art's not enough, and provide one kind and consolidate CAN and add the switch card.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a consolidate CAN and add the exchange card, add the exchange card body including CAN, a serial communication port, CAN adds the exchange card body and is formed by exchange card and the integrated PCB system board of CAN card circuit, CAN card circuit includes the bridge piece, a pair of CAN card master control chip, a pair of optoelectronic isolation module, a pair of CAN bus transceiver and output interface, CAN card master control chip all is connected through bridge piece and computer motherboard bus electricity, the output of CAN card master control chip is connected with CAN bus transceiver electricity behind the optoelectronic isolation module, CAN bus transceiver's output even has output interface, the output and the output interface electricity of exchange card are connected.
The output of the switch card is divided into four paths of output.
The outputs of the CAN card main control chip and the switch card are respectively connected with different pins of the output interface.
Model SJA1000 of CAN card master control chip.
The bridgework model PLX PCI 9030.
Model number KSZ8995 of switch card.
The utility model has the advantages that: the utility model discloses a there are two tunnel CAN card owner to control chip and computer motherboard bus electricity and be connected, realize redundant control, if the CAN card breaks down all the way, the computer CAN normally work, and CAN card and exchange card integration are on a circuit board, an output interface of sharing, have practiced thrift the connector of computer, the extension of the computer peripheral of being convenient for, in addition, CAN card circuit has the photoelectric isolation, and the interference killing feature is strong.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a circuit connection block diagram of a CAN card;
FIG. 3 is a circuit diagram of a switch card;
FIG. 4 is a circuit diagram of a bridge plate;
FIG. 5 is a circuit diagram of a CAN card master control chip;
FIG. 6 is a circuit diagram of a photo-isolation module;
FIG. 7 is a CAN bus transceiver circuit diagram;
FIG. 8 is a circuit diagram of an output interface;
in the figure: 1-CAN adds the exchange card body; reference numeral 1 here only represents the reference numeral in fig. 1, and does not relate to the electrical component symbol in fig. 2 to 8, and reference numeral 1 in the embodiment is also the reference numeral in fig. 1;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1-8, a reinforced CAN add the switch card, including CAN add the switch card body 1, its characterized in that, CAN add the switch card body 1 and form by switch card and the integrated PCB system board of CAN card circuit, the CAN card circuit includes the bridge piece, a pair of CAN card master control chip, a pair of optoelectronic isolation module, a pair of CAN bus transceiver and output interface, the CAN card master control chip all is connected with computer motherboard bus electricity through the bridge piece, the output of CAN card master control chip is connected with CAN bus transceiver electricity behind the optoelectronic isolation module, the output of CAN bus transceiver even has output interface, the output and the output interface electricity of switch card are connected.
The output of the switch card is divided into four paths of output.
The outputs of the CAN card main control chip and the switch card are respectively connected with different pins of the output interface.
Model SJA1000 of CAN card master control chip.
The bridgework model PLX PCI 9030.
Model number KSZ8995 of switch card.
The utility model discloses the during operation with CAN add the output interface of exchange card body 1 insert the computer mainboard interface CAN to realize the communication between each computer.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (3)
1. The utility model provides a consolidate CAN and add commutate card, add commutate card body (1) including CAN, a serial communication port, CAN adds commutate card body (1) and is formed by commutate card and the integrated PCB system board of CAN card circuit, CAN card circuit includes the bridge piece, a pair of CAN card master control chip, a pair of optoelectronic isolation module, a pair of CAN bus transceiver and output interface, CAN card master control chip all is connected through bridge piece and computer motherboard bus electricity, the output of CAN card master control chip is connected with CAN bus transceiver electricity behind the optoelectronic isolation module, CAN bus transceiver's output even has output interface, the output and the output interface electricity of commutate card are connected.
2. The ruggedized CAN plus switch card of claim 1, wherein the output of the switch card is divided into four outputs.
3. The ruggedized CAN plus switch card of claim 1, wherein outputs of a pair of the CAN card master chip and the switch card are connected to different pins of the output interface, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970472.8U CN209842384U (en) | 2019-06-26 | 2019-06-26 | Reinforced CAN and exchange card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920970472.8U CN209842384U (en) | 2019-06-26 | 2019-06-26 | Reinforced CAN and exchange card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209842384U true CN209842384U (en) | 2019-12-24 |
Family
ID=68899054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920970472.8U Expired - Fee Related CN209842384U (en) | 2019-06-26 | 2019-06-26 | Reinforced CAN and exchange card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209842384U (en) |
-
2019
- 2019-06-26 CN CN201920970472.8U patent/CN209842384U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |