CN108809788A - A kind of communication automatic switching control equipment and method - Google Patents
A kind of communication automatic switching control equipment and method Download PDFInfo
- Publication number
- CN108809788A CN108809788A CN201810718149.1A CN201810718149A CN108809788A CN 108809788 A CN108809788 A CN 108809788A CN 201810718149 A CN201810718149 A CN 201810718149A CN 108809788 A CN108809788 A CN 108809788A
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- Prior art keywords
- communication
- module
- communication module
- transceiver
- interface modules
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- 238000004891 communication Methods 0.000 title claims abstract description 271
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000003993 interaction Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000013569 fruit product Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40032—Details regarding a bus interface enhancer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides communication automatic switching control equipment and method, by by CAN interface and UART interface multiplexing functions, and judge network type by reading the predetermined information of communication module, to realize that communication is automatically switched, CAN communication can be connected or connect UART interface by realizing an interface both, CAN interface is communicated with UART interface is not necessarily to intermediate conversion circuit, has saved cost, has improved product competitiveness.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of communication automatic switching control equipment and methods.
Background technology
CAN and UART is standard communication protocol, and corresponding CAN interface, UART interface are widely used to all kinds of electricity
Sub- product.And each manufacturer is in deisgn product, some products configurations CAN communication interface, some are configured with UART communications and connect
Mouthful, or two kinds of communication interfaces of CAN and UART are configured simultaneously.
If A products configuration CAN interfaces, B products configuration UART interfaces will realize that A products are communicated with B products, then necessary
The A CAN signals exported are converted into UART signal, then are transferred to B products, increase CAN and UART signal converter between A and B,
Vice versa.
If fruit product is with configuration CAN interface and UART interface, then needs to increase cost, increase the volume of product, it is unfavorable
In the miniaturization of product.
Therefore, the prior art is further improved.
Invention content
A kind of communication automatic switching control equipment of present invention offer and method, it is intended to solve defect in the prior art, realize one
A interface can both connect CAN communication or connect UART interface, and CAN interface is communicated with UART interface is not necessarily to intermediate conversion circuit.
In order to achieve the above objectives, the technical solution used in the present invention is：
Another aspect of the present invention provides a kind of communication automatic switching control equipment, including communication interface modules, communication handover module,
First communication module, second communication module, the first transceiver communication module, the second transceiver communication module, communication type judgment module；
The communication interface modules, compatible first letter type, the second communication type, and at least one pin is by the first communication
Signal of communication multiplexing in type, the second communication type；
The communication handover module, communication type for being identified according to communication type judgment module is by communication interface modules
Signal be connected to first communication module or second communication module, default connection is to the first communication module when starting；
The first communication module, for being parsed to the first signal of communication；
The second communication module, for being parsed to the second signal of communication；
The first transceiver communication module, the signal for receiving and dispatching first communication module；
The second transceiver communication module, the signal for receiving and dispatching second communication module；
The communication type judgment module, for being identified to communication type and controlling communication handover module；
Wherein, the communication handover module is communicated with the communication interface modules, the first communication module, described second
Module, communication type judgment module connection, the communication type judgment module and the first transceiver communication module, second
Transceiver communication module connects, and the first transceiver communication module is connect with the first communication module, second transceiver communication
Module is connect with the second communication module.
Specifically, the communication handover module is made of at least one switching switch, and the switching switch is dynamic comprising first
End, the second moved end and public fixing end, the public fixing end are connect with the communication interface modules, first moved end
It is connect with the first communication module, first moved end is connect with the second communication module, the public fixing end unicom
Moved end controlled by the communication type judgment module.
Further, the communication type judgment module is also connect with human-computer interaction module, and the human-computer interaction module is used
In display communication interface modules is not connected or fault message.
One aspect of the present invention provides a kind of communication automatic switching method, including：
Step 1, communication type judgment module control the communication handover module and connect the signal of the communication interface modules
It is connected to first communication module.
Step 2, the first transceiver communication module read first communication module information, judge whether to read the first default letter
Breath, is the connection status for notifying communication type judgment module to maintain the communication interface modules and the first communication module,
Otherwise enter in next step.
Step 3, the first transceiver communication module send the second presupposed information to the first communication module, judge whether to receive
First response message is that communication type judgment module is notified to maintain the communication interface modules and the first communication module
Otherwise connection status enters in next step.
Step 4, communication type judgment module control the communication handover module and connect the signal of the communication interface modules
It is connected to second communication module.
Step 5, the second transceiver communication module read second communication module information, judge whether to read the default letter of third
Breath, is the connection status for notifying communication type judgment module to maintain the communication interface modules and the second communication module,
Otherwise enter in next step.
Step 6, the second transceiver communication module send the 4th presupposed information to the second communication module, judge whether to receive
Second response message is that communication type judgment module is notified to maintain the communication interface modules and the second communication module
Otherwise connection status enters step 1.
Further, further include after step 6：
Step 7, human-computer interaction module display communication interface modules is not connected with or fault message.
Specifically, the first communication module is CAN module, and first predetermined information is that CAN I D arbitrate segment information,
Second presupposed information is CAN message.
Specifically, the second communication module be UART modules, the third presupposed information include UART start bits or/and
Check code, the 4th presupposed information are UART handshaking informations.
The beneficial effects of the present invention are：The present invention passes through reading by by CAN interface and UART interface multiplexing functions
The predetermined information of communication module judges network type, and to realize that communication is automatically switched, to realize an interface can both connect
CAN communication can also connect UART interface, and CAN interface is communicated with UART interface is not necessarily to intermediate conversion circuit, has saved cost, has improved
Product competitiveness.
Description of the drawings
Fig. 1 is the structural schematic diagram of the communication automatic switching control equipment of the present invention；
Fig. 2 is the structural schematic diagram of the communication handover module of the present invention；
Fig. 3 is another structural schematic diagram of the communication automatic switching control equipment of the present invention；
Fig. 4 is the flow diagram of the communication automatic switching method of the present invention.
Specific implementation mode
Specifically illustrate embodiments of the present invention below in conjunction with the accompanying drawings, attached drawing is only for reference and illustrates to use, and does not constitute pair
The limitation of scope of patent protection of the present invention.
As shown in Figure 1, the present invention provides a kind of communication automatic switching control equipment, including communication interface modules, communication switching mould
Block, first communication module, second communication module, the first transceiver communication module, the second transceiver communication module, communication type judge mould
Block；
The communication interface modules, compatible first letter type, the second communication type, and at least one pin is by the first communication
Signal of communication multiplexing in type, the second communication type；
The communication handover module, communication type for being identified according to communication type judgment module is by communication interface modules
Signal be connected to first communication module or second communication module, default connection is to the first communication module when starting；
The first communication module, for being parsed to the first signal of communication；
The second communication module, for being parsed to the second signal of communication；
The first transceiver communication module, the signal for receiving and dispatching first communication module；
The second transceiver communication module, the signal for receiving and dispatching second communication module；
The communication type judgment module, for being identified to communication type and controlling communication handover module；
Wherein, the communication handover module is communicated with the communication interface modules, the first communication module, described second
Module, communication type judgment module connection, the communication type judgment module and the first transceiver communication module, second
Transceiver communication module connects, and the first transceiver communication module is connect with the first communication module, second transceiver communication
Module is connect with the second communication module.
As shown in Fig. 2, in one embodiment of the invention, the communication handover module is by least one switching switching group
At the switching switch includes the first moved end 1, the second moved end 2 and public fixing end 3, further includes sentencing with the communication type
The communication terminal (not shown) of disconnected module communication.
The public fixing end 3 is connect with the communication interface modules, first moved end 1 and the first communication module
Connection, first moved end 2 are connect with the second communication module, and the moved end of 3 unicom of public fixing end is by the communication
Type judging module controls.When starting, 3 default connection of public fixing end to first moved end 1.
As shown in figure 3, in one embodiment of the invention, the communication type judgment module also with human-computer interaction module
Connection, the human-computer interaction module is for showing that communication interface modules is not connected or fault message.
As shown in figure 4, the control method of the communication automatic switching control equipment is as follows：
Step 1, communication type judgment module control the communication handover module and connect the signal of the communication interface modules
It is connected to first communication module.
Step 2, the first transceiver communication module read first communication module information, judge whether to read the first default letter
Breath, is the connection status for notifying communication type judgment module to maintain the communication interface modules and the first communication module,
Otherwise enter in next step.
Step 3, the first transceiver communication module send the second presupposed information to the first communication module, judge whether to receive
First response message is that communication type judgment module is notified to maintain the communication interface modules and the first communication module
Otherwise connection status enters in next step.
Step 4, communication type judgment module control the communication handover module and connect the signal of the communication interface modules
It is connected to second communication module.
Step 5, the second transceiver communication module read second communication module information, judge whether to read the default letter of third
Breath, is the connection status for notifying communication type judgment module to maintain the communication interface modules and the second communication module,
Otherwise enter in next step.
Step 6, the second transceiver communication module send the 4th presupposed information to the second communication module, judge whether to receive
Second response message is that communication type judgment module is notified to maintain the communication interface modules and the second communication module
Otherwise connection status enters step 1.
In one embodiment of the invention, further include after step 6：
Step 7, human-computer interaction module display communication interface modules is not connected with or fault message.
In one embodiment of the invention, the first communication module is CAN module, and first predetermined information is
CAN I D arbitrate segment information, and second presupposed information is CAN message.
In one embodiment of the invention, the second communication module is UART modules, the third presupposed information packet
UART start bits or/and check code are included, the 4th presupposed information is UART handshaking informations.
Above disclosed is only presently preferred embodiments of the present invention, and the rights protection model of the present invention cannot be limited with this
It encloses, therefore according to equivalent variations made by scope of the present invention patent, is still within the scope of the present invention.
Claims (7)
1. a kind of communication automatic switching control equipment, which is characterized in that including：Communication interface modules, communication handover module, the first communication
Module, second communication module, the first transceiver communication module, the second transceiver communication module, communication type judgment module；
The communication interface modules, compatible first letter type, the second communication type, and at least one pin is by the first communication class
Signal of communication multiplexing in type, the second communication type；
The communication handover module, communication type for being identified according to communication type judgment module is by the letter of communication interface modules
Number it is connected to first communication module or second communication module, default connection is to the first communication module when starting；
The first communication module, for being parsed to the first signal of communication；
The second communication module, for being parsed to the second signal of communication；
The first transceiver communication module, the signal for receiving and dispatching first communication module；
The second transceiver communication module, the signal for receiving and dispatching second communication module；
The communication type judgment module, for being identified to communication type and controlling communication handover module；
Wherein, the communication handover module communicates mould with the communication interface modules, the first communication module, described second
Block, communication type judgment module connection, the communication type judgment module lead to the first transceiver communication module, second
Believe that transceiver module connection, the first transceiver communication module are connect with the first communication module, the second transceiver communication mould
Block is connect with the second communication module.
2. communication automatic switching control equipment according to claim 1, which is characterized in that the communication handover module is by least one
A switching switch composition, the switching switch includes the first moved end, the second moved end and public fixing end, the public fixation
End is connect with the communication interface modules, and first moved end is connect with the first communication module, first moved end and institute
Second communication module connection is stated, the moved end of the public fixing end unicom is controlled by the communication type judgment module.
3. communication automatic switching control equipment according to claim 1, which is characterized in that the communication type judgment module also with
Human-computer interaction module connects, and the human-computer interaction module is for showing that communication interface modules is not connected or fault message.
4. a kind of communication automatic switching method, which is characterized in that including：
Step 1, communication type judgment module control the communication handover module and are connected to the signal of the communication interface modules
First communication module.
Step 2, the first transceiver communication module read first communication module information, judge whether to read the first presupposed information, are
Then notify communication type judgment module to maintain the connection status of the communication interface modules and the first communication module, otherwise into
Enter in next step.
Step 3, the first transceiver communication module send the second presupposed information to the first communication module, judge whether to receive first
Response message is the connection for notifying communication type judgment module to maintain the communication interface modules and the first communication module
Otherwise state enters in next step.
Step 4, communication type judgment module control the communication handover module and are connected to the signal of the communication interface modules
Second communication module.
Step 5, the second transceiver communication module read second communication module information, judge whether to read third presupposed information, are
Then notify communication type judgment module to maintain the connection status of the communication interface modules and the second communication module, otherwise into
Enter in next step.
Step 6, the second transceiver communication module send the 4th presupposed information to the second communication module, judge whether to receive second
Response message is the connection for notifying communication type judgment module to maintain the communication interface modules and the second communication module
Otherwise state enters step 1.
5. communication automatic switching method according to claim 4, which is characterized in that further include after step 6：
Step 7, human-computer interaction module display communication interface modules is not connected with or fault message.
6. communication automatic switching method according to claim 4, which is characterized in that the first communication module is CAN moulds
Block, first predetermined information are that CAN ID arbitrate segment information, and second presupposed information is CAN message.
7. communication automatic switching method according to claim 4, which is characterized in that
The second communication module is UART modules, and the third presupposed information includes UART start bits or/and check code, described
4th presupposed information is UART handshaking informations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718149.1A CN108809788A (en) | 2018-06-30 | 2018-06-30 | A kind of communication automatic switching control equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718149.1A CN108809788A (en) | 2018-06-30 | 2018-06-30 | A kind of communication automatic switching control equipment and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108809788A true CN108809788A (en) | 2018-11-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810718149.1A Pending CN108809788A (en) | 2018-06-30 | 2018-06-30 | A kind of communication automatic switching control equipment and method |
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| CN (1) | CN108809788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580037A (en) * | 2019-09-27 | 2019-12-17 | 华勤通讯技术有限公司 | UART communication system and vehicle-mounted equipment |
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| JP2007053619A (en) * | 2005-08-18 | 2007-03-01 | Sony Corp | Electronic apparatus, control method thereof, and program |
| US20080183940A1 (en) * | 2007-01-26 | 2008-07-31 | Tony Lou | Computer Switch Having Integrated Direct Connection And Scan Interface Structures |
| CN101895450A (en) * | 2009-05-20 | 2010-11-24 | 株式会社瑞萨科技 | Conductor integrated circuit device |
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| CN110580037B (en) * | 2019-09-27 | 2020-07-31 | 华勤通讯技术有限公司 | UART communication system and vehicle-mounted equipment |
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| PB01 | Publication | ||
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Application publication date: 20181113 |