CN108737345A - Transmission method and transmitting device - Google Patents
Transmission method and transmitting device Download PDFInfo
- Publication number
- CN108737345A CN108737345A CN201710265020.5A CN201710265020A CN108737345A CN 108737345 A CN108737345 A CN 108737345A CN 201710265020 A CN201710265020 A CN 201710265020A CN 108737345 A CN108737345 A CN 108737345A
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- CN
- China
- Prior art keywords
- message
- lvds
- signal
- converted
- transmission
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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- 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
- H04L69/08—Protocols for interworking; Protocol conversion
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- 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
-
- 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
-
- 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
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
The present invention relates to transmission method and transmitting device, which includes：Receive controller local area network's CAN message；And signal related with the CAN message is transmitted using low-voltage differential signal LVDS technologies.This method and device can transmit CAN message in the case where not increasing hardware cost using LVDS chips.
Description
Technical field
The present invention relates to automobile intelligents to drive field more particularly to transmission method and transmitting device.
Background technology
It is travelled by the conventional vehicles of driver's manual control using controller local area network (CAN) agreement in vehicle
Each device systems (such as vehicle-mounted computer, navigation equipment, multimedia player, engine system, braking system, security system
Deng) between transmit CAN message.
Compared with conventional vehicles, the intelligent driving vehicle without driver's manual control increases picture pick-up device, for
The mode of vision signal collects the information of vehicle-surroundings to assist vehicle to carry out intelligent driving.It is regarded since CAN protocol cannot be transmitted
Frequency signal, therefore, usually using low-voltage differential signal (LVDS) chip (i.e. LVDS serializers and LVDS in intelligent driving vehicle
Deserializer) carry out transmission video signal.LVDS is a kind of technical standard, and which specify the electrical spies of differential serial communication protocol
Property.Typical case based on LVDS technologies is high-speed video, image and camera data transmission and all-purpose computer bus.
Conventional LVDS chips (i.e. LVDS serializers and LVDS deserializers) are usually designed to only transmission video signal
With I2C (Inter-Integrated Circuit) signal (for example, CMOS control signalings).In order to adapt in intelligent driving vehicle
Not only the requirement of transmission video signal but also transmission CAN message, the LVDS chips used in intelligent driving vehicle at present were usually increased
Add the additional cable and connector for being used for transmission CAN message, still, this can increase the hardware cost of system.
Invention content
The embodiment of the present invention provides transmission method and transmitting device, can make in the case where not increasing hardware cost
CAN message is transmitted with LVDS chips.
A kind of transmission method of embodiment according to the invention, including：Receive controller local area network's CAN message；And
Signal related with the CAN message is transmitted using low-voltage differential signal LVDS technologies.
A kind of transmission method of embodiment according to the invention, including：It receives and utilizes low-voltage differential signal LVDS technologies
The signal related with controller local area network's CAN message of transmission；And it according to received signal, obtains the CAN and disappears
Breath.
A kind of transmitting device of embodiment according to the invention, including：Receiving module, for receiving controller local area network
CAN message；And transmission module, it is related with the CAN message for being transmitted using low-voltage differential signal LVDS technologies
Signal.
A kind of transmitting device of embodiment according to the invention, including：Receiving module utilizes low voltage difference for receiving
The signal related with controller local area network's CAN message of signal LVDS technical transmissions；And acquisition module, for according to institute
Received signal obtains the CAN message.
A kind of serializer of embodiment according to the invention, including：Processor；And memory, it is stored with executable
Instruction, the executable instruction make the processor execute method above-mentioned upon being performed.
A kind of deserializer of embodiment according to the invention, including：Processor；And memory, being stored with can hold
Row instruction, the executable instruction make the processor execute method above-mentioned upon being performed.
A kind of machine readable storage medium of embodiment according to the invention, is stored with executable instruction, described to hold
Row instruction is upon being performed so that machine executes method above-mentioned.
From the above, it can be seen that the scheme of the embodiment of the present invention does not increase on LVDS chips and additional disappears for CAN
The cable and connector for ceasing transmission, directly transmit CAN message using LVDS technologies, therefore, the scheme of the embodiment of the present invention
In the case where not increasing hardware cost CAN message can be transmitted using LVDS chips.
Description of the drawings
Feature, feature, advantage and the benefit of the present invention will become obvious by the detailed description below in conjunction with attached drawing.
Fig. 1 shows the configuration diagram of the Transmission system of one embodiment according to the invention.
Fig. 2 shows the overview flow charts of the transmission method of one embodiment according to the invention.
Fig. 3 A show the flow chart of the transmission method of one embodiment according to the invention.
Fig. 3 B show the flow chart of the transmission method of another embodiment according to the invention.
Fig. 4 A show the schematic diagram of the transmitting device of one embodiment according to the invention.
Fig. 4 B show the schematic diagram of the transmitting device of another embodiment according to the invention.
Fig. 5 A show the schematic diagram of the serializer of one embodiment according to the invention.
Fig. 5 B show the schematic diagram of the deserializer of one embodiment according to the invention.
Specific implementation mode
In the following, in conjunction with each embodiment of attached drawing detailed description of the present invention.
Fig. 1 shows the configuration diagram of the Transmission system of one embodiment according to the invention.Transmission system shown in FIG. 1
System 10 is applied to the picture pick-up device T1 and vehicle-mounted computer T2 of vehicle.As shown in Figure 1, Transmission system 10 may include LVDS serializers
20, LVDS deserializers 30 and LVDS cables 40.LVDS serializers 20 and LVDS deserializers 30 are all connected to LVDS cables 40.
LVDS serializers 20 are mounted in the picture pick-up device T1 of vehicle, can receive the video letter that picture pick-up device T1 is generated
Number, I2C signals and/or CAN message, the vision signal received, I2C signals and/or CAN message are converted into LVDS signals,
And converted LVDS signals are transmitted via LVDS cables 40.
LVDS deserializers 30 are mounted in the vehicle-mounted computer T2 of vehicle, can be received and be transmitted via LVDS cables 40
LVDS signals, and, the LVDS signals received are converted into vision signal, I2C signals and/or CAN message and are supplied to vehicle
Carry computer T2.
Fig. 2 shows the overview flow charts of the transmission method of one embodiment according to the invention.Shown in Fig. 1
Transmission system be described in detail transmission method shown in Fig. 2.
As shown in Fig. 2, in box 202, LVDS serializers 20 can receive the video letter that the picture pick-up device T1 of vehicle is generated
Number, I2C signals and/or CAN message.
In box 204, LVDS serializers 20 can distinguish the vision signal received, I2C signals and/or CAN message
It is converted into LVDS signals.The LVDS signals can have the information for being used to indicate entrained by it be vision signal, I2C signals or
The flag bit of CAN message.Here, CAN message is converted into the mode of LVDS signals and I2C signals is converted into LVDS signals
Mode is similar.
In box 206, LVDS serializers 20 send converted LVDS signals via LVDS cables 40.
In box 208, LVDS deserializers 30 can receive the LVDS letters that LVDS serializers 20 are sent from LVDS cables 40
Number.
In box 210, LVDS deserializers 30 can convert the LVDS signals received, to obtain video letter
Number, I2C signals and/or CAN message.The obtained vision signal, I2C signals and/or CAN message are carried by LVDS deserializers 30
The vehicle-mounted computer T2 of supply vehicle.
It can be seen from the above that the present embodiment by CAN message be converted into LVDS signals and via LVDS cables into
Row transmission, need not increase the additional hardware device for being used for transmission CAN message, therefore, the present embodiment energy on LVDS chips
It is enough to transmit CAN message using LVDS chips in the case where not increasing hardware cost.
Further, since in the present embodiment, it need not increase on LVDS chips and additional be used for transmission the hard of CAN message
Part equipment can transmit CAN message using LVDS chips, and therefore, the present embodiment not will increase the area and body of LVDS chips
Product.
Other modifications
Although it will be appreciated by those skilled in the art that in the above embodiments, CAN message is transmitted using LVDS technologies
It is realized by the way that CAN message is converted into LVDS signals and is transmitted via LVDS cables, however, the present invention not office
It is limited to this.In some other embodiment of the present invention, such as, but not limited to, LVDS technologies can be changed so that it can be with
Come via LVDS cable transmission CAN messages, i.e. LVDS technologies are modified in the way of transmitting CAN message via CAN bus
Have the function of CAN transport protocols.
It will be appreciated by those skilled in the art that although in the above embodiments, Transmission system 10 is applied to taking the photograph for vehicle
As equipment and vehicle-mounted computer, however, the present invention is not limited thereto.In some other embodiment of the present invention, Transmission system
10 can be applied to the arbitrary equipment of vehicle, alternatively, applied to miscellaneous equipment and/or system except vehicle.
Fig. 3 A show the flow chart of the transmission method of one embodiment according to the invention.Method 300 shown in Fig. 3 A
Such as it can be realized by such as LVDS serializers 20.
As shown in Figure 3A, method 300 may include, in box 302, receiving CAN message.
Method 300 can also include, related come the CAN message transmitted with received using LVDS technologies in box 304
Signal.
In one aspect, box 304 may include：The CAN message received is converted into LVDS signals, and, via
LVDS cables send converted LVDS signals.
On the other hand, box 304 may include：In the way of sending CAN message via CAN bus, via
LVDS cables send received CAN message.
Fig. 3 B show the flow chart of the transmission method of another embodiment according to the invention.Method shown in Fig. 3 B
350 can for example be realized by such as LVDS deserializers 30.
As shown in Figure 3B, method 350 may include, in box 352, receiving and being passed using low-voltage differential signal LVDS technologies
Defeated signal related with controller local area network's CAN message.
Method 350 can also include obtaining the CAN message according to received signal in box 354.
In one aspect, the received signal can be the LVDS signals being converted by the CAN message, and, side
Frame 354 may include：The LVDS signals are converted into the CAN message.
On the other hand, the received signal can be the CAN message.
Fig. 4 A show the schematic diagram of the transmitting device of one embodiment according to the invention.Transmitting device shown in Fig. 4 A
400 can be realized in the way of software, hardware or software and hardware combining, also, such as, but not limited to can install LVDS
In serializer 20 or other any suitable devices etc..
As shown in Figure 4 A, transmitting device 400 may include receiving module 402 and transmission module 404.Receiving module 402 can
For receiving controller local area network's CAN message.Transmission module 404 can be used for utilizing low-voltage differential signal LVDS technologies
To transmit signal related with the CAN message.
In one aspect, transmission module 404 may include：Conversion module, for the CAN message to be converted into LVDS letters
Number；And sending module, for sending converted LVDS signals via LVDS cables.
On the other hand, transmission module 404 can be further used for：According to the side for sending CAN message via CAN bus
Formula sends received CAN message via LVDS cables.
Fig. 4 B show the schematic diagram of the transmitting device of another embodiment according to the invention.Dress is transmitted shown in Fig. 4 B
Setting 450 can be realized in the way of software, hardware or software and hardware combining, also, such as, but not limited to may be mounted at
In LVDS deserializers 30 or other any suitable devices etc..
As shown in Figure 4 B, transmitting device 450 may include receiving module 452 and acquisition module 454.Receiving module 452 can
For receiving the signal related with controller local area network's CAN message using low-voltage differential signal LVDS technical transmissions.
Acquisition module 454 can be used for, according to received signal, obtaining the CAN message.
In one aspect, the received signal can be the LVDS signals being converted by the CAN message, and, it obtains
Modulus block 454 is further used for the LVDS signals being converted into the CAN message.
On the other hand, the received signal can be the CAN message.
Fig. 5 A show the schematic diagram of the serializer of one embodiment according to the invention.As shown in Figure 5A, serializer 500
May include processor 502 and memory 504.Wherein, memory 504 is stored with executable instruction, and the executable instruction is worked as
It is performed so that processor 502 executes method 300 shown in Fig. 3 A.
Fig. 5 B show the schematic diagram of the deserializer of one embodiment according to the invention.As shown in Figure 5 B, solution is serial
Device 550 may include processor 552 and memory 554.Wherein, memory 554 is stored with executable instruction, the executable finger
It enables upon being performed so that processor 552 executes method 350 shown in Fig. 3 B.
The embodiment of the present invention also provides a kind of machine readable storage medium, is stored with executable instruction, described to hold
Row instruction is upon being performed so that machine executes method 350 shown in method 300 or Fig. 3 B shown in Fig. 3 A.
It will be understood by those skilled in the art that each embodiment disclosed in this invention can be in the feelings without departing from invention essence
Various modifications, modification and/or adjustment are made under condition, these deformation, modification and/or adjustment all fall protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention is defined by appended claims.
Claims (14)
1. a kind of transmission method, including：
Receive controller local area network's CAN message；And
Signal related with the CAN message is transmitted using low-voltage differential signal LVDS technologies.
2. the method for claim 1, wherein the transmission signal includes：
The CAN message is converted into LVDS signals；And
Converted LVDS signals are sent via LVDS cables.
3. the method for claim 1, wherein the transmission signal includes：
In the way of sending CAN message via CAN bus, received CAN message is sent via LVDS cables.
4. a kind of transmission method, including：
Receive the signal related with controller local area network's CAN message using low-voltage differential signal LVDS technical transmissions；With
And
According to received signal, the CAN message is obtained.
5. method as claimed in claim 4, wherein
The received signal is the LVDS signals being converted by the CAN message, and
It is described to obtain the CAN message and include：The LVDS signals are converted into the CAN message.
6. method as claimed in claim 4, wherein
The received signal is the CAN message.
7. a kind of transmitting device, including：
Receiving module, for receiving controller local area network's CAN message；And
Transmission module, for transmitting signal related with the CAN message using low-voltage differential signal LVDS technologies.
8. transmitting device as claimed in claim 7, wherein the transmission module includes：
Conversion module, for the CAN message to be converted into LVDS signals；And
Sending module, for sending converted LVDS signals via LVDS cables.
9. transmitting device as claimed in claim 7, wherein
The transmission module is further used for：In the way of sending CAN message via CAN bus, sent via LVDS cables
The CAN message received.
10. a kind of transmitting device, including：
Receiving module utilizes low-voltage differential signal LVDS technical transmissions and controller local area network's CAN message for receiving
Related signal；And
Acquisition module, for according to received signal, obtaining the CAN message.
11. transmitting device as claimed in claim 10, wherein
The received signal is the LVDS signals being converted by the CAN message, and
The acquisition module is further used for：The LVDS signals are converted into the CAN message.
12. a kind of serializer, including：
Processor；And
Memory, is stored with executable instruction, and the executable instruction makes the processor perform claim upon being performed
It is required that any one of method in 1-3.
13. a kind of deserializer, including：
Processor；And
Memory, is stored with executable instruction, and the executable instruction makes the processor perform claim upon being performed
It is required that any one of method in 4-6.
14. a kind of machine readable storage medium, is stored with executable instruction, the executable instruction makes machine upon being performed
Device perform claim requires any one of method in 1-6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265020.5A CN108737345A (en) | 2017-04-21 | 2017-04-21 | Transmission method and transmitting device |
| PCT/CN2018/084027 WO2018192585A1 (en) | 2017-04-21 | 2018-04-23 | Transmission method and transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265020.5A CN108737345A (en) | 2017-04-21 | 2017-04-21 | Transmission method and transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108737345A true CN108737345A (en) | 2018-11-02 |
Family
ID=63855542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265020.5A Pending CN108737345A (en) | 2017-04-21 | 2017-04-21 | Transmission method and transmitting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108737345A (en) |
| WO (1) | WO2018192585A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660520A (en) * | 2018-11-23 | 2019-04-19 | 江西洪都航空工业集团有限责任公司 | LVDS bus communication data transmission method for uplink |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336247B (en) * | 2013-07-12 | 2016-01-13 | 安徽安凯汽车股份有限公司 | A kind of electric automobile power battery group discharging detecting system and detection method thereof |
| KR101536141B1 (en) * | 2014-02-13 | 2015-07-13 | 현대자동차주식회사 | Apparatus and method for converting signal between ethernet and can in a vehicle |
| CN204978496U (en) * | 2015-09-13 | 2016-01-20 | 六盘水师范学院 | Video decoding device of built -in CAN bus |
| CN105699895A (en) * | 2016-02-05 | 2016-06-22 | 重庆长安汽车股份有限公司 | Variable loading test system and method for monoblock type alternating current generator |
-
2017
- 2017-04-21 CN CN201710265020.5A patent/CN108737345A/en active Pending
-
2018
- 2018-04-23 WO PCT/CN2018/084027 patent/WO2018192585A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660520A (en) * | 2018-11-23 | 2019-04-19 | 江西洪都航空工业集团有限责任公司 | LVDS bus communication data transmission method for uplink |
| CN109660520B (en) * | 2018-11-23 | 2022-04-15 | 江西洪都航空工业集团有限责任公司 | LVDS bus communication data transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018192585A1 (en) | 2018-10-25 |
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Application publication date: 20181102 |