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WO2018192585A1 - Procédé de transmission et dispositif de transmission - Google Patents

Procédé de transmission et dispositif de transmission Download PDF

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Publication number
WO2018192585A1
WO2018192585A1 PCT/CN2018/084027 CN2018084027W WO2018192585A1 WO 2018192585 A1 WO2018192585 A1 WO 2018192585A1 CN 2018084027 W CN2018084027 W CN 2018084027W WO 2018192585 A1 WO2018192585 A1 WO 2018192585A1
Authority
WO
WIPO (PCT)
Prior art keywords
message
lvds
signal
transmission
module
Prior art date
Application number
PCT/CN2018/084027
Other languages
English (en)
Chinese (zh)
Inventor
祝建松
Original Assignee
罗伯特·博世有限公司
祝建松
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 罗伯特·博世有限公司, 祝建松 filed Critical 罗伯特·博世有限公司
Publication of WO2018192585A1 publication Critical patent/WO2018192585A1/fr

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to the field of intelligent driving of automobiles, in particular to a transmission method and a transmission device.
  • CAN Controller Area Network
  • an intelligent driving vehicle that does not require manual manipulation by a driver adds an imaging device for collecting information around the vehicle in a video signal manner to assist the vehicle in intelligent driving.
  • LVDS low voltage differential signaling
  • LVDS serializers and LVDS deserializers are commonly used in intelligently driven vehicles to transmit video signals.
  • LVDS is a technical standard that specifies the electrical characteristics of a differential serial communication protocol. Typical applications based on LVDS technology are high speed video, image and camera data transmission, and general purpose computer buses.
  • LVDS chips ie, LVDS serializers and LVDS deserializers
  • I2C signals eg, CMOS control signaling
  • the LVDS chips currently used in intelligently driven vehicles are usually added with additional cables and connectors for transmitting CAN messages, but this will increase the system. Hardware costs.
  • Embodiments of the present invention provide a transmission method and transmission apparatus that are capable of transmitting CAN messages using an LVDS chip without increasing hardware costs.
  • a transmission method includes: receiving a controller area network CAN message; and transmitting a signal related to the CAN message using a low voltage differential signal LVDS technique.
  • a transmission method includes: receiving a signal related to a controller area network CAN message transmitted using a low voltage differential signal LVDS technique; and acquiring the CAN message according to the received signal.
  • a transmission apparatus includes: a receiving module for receiving a controller area network CAN message; and a transmission module for transmitting a CAN message related to the CAN message by using a low voltage differential signal LVDS technique signal.
  • a transmission apparatus comprising: a receiving module, configured to receive a signal related to a controller area network CAN message transmitted by using a low voltage differential signal LVDS technology; and an acquisition module for receiving according to the received The signal is obtained by the CAN message.
  • a serializer in accordance with an embodiment of the present invention includes: a processor; and a memory storing executable instructions that, when executed, cause the processor to perform the aforementioned method.
  • a deserializer includes: a processor; and a memory storing executable instructions that, when executed, cause the processor to perform the aforementioned method.
  • a machine readable storage medium in accordance with an embodiment of the present invention stores executable instructions that, when executed, cause a machine to perform the aforementioned method.
  • the solution of the embodiment of the present invention does not add additional cables and connectors for CAN message transmission on the LVDS chip, and directly uses the LVDS technology to transmit CAN messages. Therefore, the embodiment of the present invention The solution can use the LVDS chip to transmit CAN messages without increasing hardware costs.
  • FIG. 1 shows a block diagram of a transmission system in accordance with one embodiment of the present invention.
  • Figure 2 shows a general flow diagram of a transmission method in accordance with one embodiment of the present invention.
  • Figure 3A shows a flow chart of a transmission method in accordance with one embodiment of the present invention.
  • Figure 3B shows a flow chart of a transmission method in accordance with another embodiment of the present invention.
  • Figure 4A shows a schematic diagram of a transmission device in accordance with one embodiment of the present invention.
  • Figure 4B shows a schematic diagram of a transmission device in accordance with another embodiment of the present invention.
  • Figure 5A shows a schematic diagram of a serializer in accordance with one embodiment of the present invention.
  • Figure 5B shows a schematic diagram of a deserializer in accordance with one embodiment of the present invention.
  • transmission system 10 shows a block diagram of a transmission system in accordance with one embodiment of the present invention.
  • the transmission system 10 shown in Fig. 1 is applied to an image pickup apparatus T1 of a vehicle and an onboard computer T2.
  • transmission system 10 can include LVDS serializer 20, LVDS deserializer 30, and LVDS cable 40. Both the LVDS serializer 20 and the LVDS deserializer 30 are connected to the LVDS cable 40.
  • the LVDS serializer 20 is installed in the imaging device T1 of the vehicle, and can receive the video signal, the I2C signal and/or the CAN message generated by the imaging device T1, and convert the received video signal, I2C signal and/or CAN message into LVDS.
  • the signals, as well as the converted LVDS signals, are transmitted via the LVDS cable 40.
  • the LVDS deserializer 30 is mounted in the onboard computer T2 of the vehicle, which can receive the LVDS signals transmitted via the LVDS cable 40, and convert the received LVDS signals into video signals, I2C signals, and/or CAN messages and provide Give the car computer T2.
  • FIG. 2 shows a general flow diagram of a transmission method in accordance with one embodiment of the present invention.
  • the transmission method shown in Fig. 2 will be described in detail below with reference to the transmission system shown in Fig. 1.
  • the LVDS serializer 20 can receive a video signal, an I2C signal, and/or a CAN message generated by the camera device T1 of the vehicle.
  • LVDS serializer 20 may convert the received video signal, I2C signal, and/or CAN message to an LVDS signal, respectively.
  • the LVDS signal may have a flag for indicating whether the information carried by it is a video signal, an I2C signal, or a CAN message.
  • the manner in which a CAN message is converted into an LVDS signal is similar to the manner in which an I2C signal is converted into an LVDS signal.
  • the LVDS serializer 20 transmits the converted LVDS signal via the LVDS cable 40.
  • the LVDS deserializer 30 can receive the LVDS signal transmitted by the LVDS serializer 20 from the LVDS cable 40.
  • LVDS deserializer 30 may convert the received LVDS signal to obtain a video signal, an I2C signal, and/or a CAN message.
  • the resulting video signal, I2C signal and/or CAN message is provided by the LVDS deserializer 30 to the onboard computer T2 of the vehicle.
  • this embodiment converts a CAN message into an LVDS signal and transmits it via an LVDS cable, and does not need to add an additional hardware device for transmitting a CAN message on the LVDS chip. Therefore, this embodiment can The LVDS chip is used to transmit CAN messages without increasing hardware costs.
  • the present embodiment does not increase the area of the LVDS chip and volume.
  • the transmission of CAN messages by LVDS technology is implemented by converting CAN messages into LVDS signals and transmitting them via LVDS cables
  • the present invention is not limited to this.
  • the LVDS technique may be modified such that it can transmit CAN messages via the LVDS cable in a manner that transmits CAN messages over the CAN bus, ie the LVDS technology is modified to have CAN The function of the transport protocol.
  • transmission system 10 is applied to an image pickup apparatus of a vehicle and an on-board computer, the present invention is not limited thereto. In other embodiments of the invention, transmission system 10 may be applied to any device of the vehicle or to other devices and/or systems other than the vehicle.
  • Figure 3A shows a flow chart of a transmission method in accordance with one embodiment of the present invention.
  • the method 300 shown in FIG. 3A can be implemented, for example, by, for example, the LVDS serializer 20.
  • method 300 can include, at block 302, receiving a CAN message.
  • Method 300 can also include, at block 304, utilizing LVDS techniques to transmit signals related to the received CAN message.
  • block 304 can include converting the received CAN message to an LVDS signal and transmitting the converted LVDS signal via an LVDS cable.
  • block 304 can include transmitting the received CAN message via the LVDS cable in a manner that the CAN message is sent over the CAN bus.
  • Figure 3B shows a flow chart of a transmission method in accordance with another embodiment of the present invention.
  • the method 350 shown in FIG. 3B can be implemented, for example, by, for example, the LVDS deserializer 30.
  • method 350 can include, at block 352, receiving a signal associated with a controller area network CAN message transmitted using low voltage differential signaling LVDS techniques.
  • the method 350 can also include, at block 354, obtaining the CAN message based on the received signal.
  • the received signal can be an LVDS signal converted by the CAN message
  • block 354 can include converting the LVDS signal to the CAN message.
  • the received signal can be the CAN message.
  • FIG. 4A shows a schematic diagram of a transmission device in accordance with one embodiment of the present invention.
  • the transmission device 400 shown in FIG. 4A can be implemented in a combination of software, hardware, or both hardware and software, and is, for example, but not limited to, an LVDS serializer 20 or any other suitable device or the like can be installed.
  • the transmission device 400 can include a receiving module 402 and a transmission module 404.
  • the receiving module 402 can be configured to receive a controller area network CAN message.
  • Transmission module 404 can be used to transmit signals related to the CAN message using low voltage differential signaling LVDS techniques.
  • the transmission module 404 can include a conversion module for converting the CAN message into an LVDS signal, and a transmitting module for transmitting the converted LVDS signal via the LVDS cable.
  • the transmission module 404 can be further configured to: transmit the received CAN message via the LVDS cable in a manner to transmit the CAN message over the CAN bus.
  • FIG. 4B shows a schematic diagram of a transmission device in accordance with another embodiment of the present invention.
  • the transmission device 450 shown in FIG. 4B can be implemented in a combination of software, hardware, or both hardware and software, and can be installed, for example, but not limited to, in the LVDS deserializer 30 or any other suitable device or the like.
  • the transmission device 450 can include a receiving module 452 and an acquisition module 454.
  • the receiving module 452 can be configured to receive signals related to the controller area network CAN message transmitted using the low voltage differential signaling LVDS technique.
  • the obtaining module 454 can be configured to acquire the CAN message according to the received signal.
  • the received signal can be an LVDS signal converted by the CAN message
  • the acquisition module 454 is further configured to convert the LVDS signal to the CAN message.
  • the received signal can be the CAN message.
  • Figure 5A shows a schematic diagram of a serializer in accordance with one embodiment of the present invention.
  • the serializer 500 can include a processor 502 and a memory 504.
  • the memory 504 stores executable instructions that, when executed, cause the processor 502 to perform the method 300 illustrated in FIG. 3A.
  • FIG. 5B shows a schematic diagram of a deserializer in accordance with one embodiment of the present invention.
  • the deserializer 550 can include a processor 552 and a memory 554.
  • the memory 554 stores executable instructions that, when executed, cause the processor 552 to perform the method 350 illustrated in FIG. 3B.
  • Embodiments of the present invention also provide a machine readable storage medium storing executable instructions that, when executed, cause a machine to perform the method 300 illustrated in FIG. 3A or the method 350 illustrated in FIG. 3B.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Dc Digital Transmission (AREA)

Abstract

La présente invention concerne un procédé de transmission et un dispositif de transmission, le procédé de transmission comprenant : la réception d'un message de réseau CAN ; et la transmission d'un signal associé au message CAN à l'aide d'une technologie de signal de différence de basse tension (LVDS). Avec le procédé et le dispositif décrits, une puce LVDS peut être utilisée pour transmettre un message CAN sans augmenter le coût du matériel.
PCT/CN2018/084027 2017-04-21 2018-04-23 Procédé de transmission et dispositif de transmission WO2018192585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710265020.5A CN108737345A (zh) 2017-04-21 2017-04-21 传输方法和传输装置
CN201710265020.5 2017-04-21

Publications (1)

Publication Number Publication Date
WO2018192585A1 true WO2018192585A1 (fr) 2018-10-25

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WO (1) WO2018192585A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109660520B (zh) * 2018-11-23 2022-04-15 江西洪都航空工业集团有限责任公司 Lvds总线通信数据发送方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103336247A (zh) * 2013-07-12 2013-10-02 安徽安凯汽车股份有限公司 一种电动汽车动力电池组放电检测系统及其检测方法
CN104852893A (zh) * 2014-02-13 2015-08-19 现代自动车株式会社 用于以太网和can通讯之间信号转换的车载设备及其控制方法
CN204978496U (zh) * 2015-09-13 2016-01-20 六盘水师范学院 一种内置can总线的视频解码装置
CN105699895A (zh) * 2016-02-05 2016-06-22 重庆长安汽车股份有限公司 整体式交流发电机可变加载试验系统及其试验方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103336247A (zh) * 2013-07-12 2013-10-02 安徽安凯汽车股份有限公司 一种电动汽车动力电池组放电检测系统及其检测方法
CN104852893A (zh) * 2014-02-13 2015-08-19 现代自动车株式会社 用于以太网和can通讯之间信号转换的车载设备及其控制方法
CN204978496U (zh) * 2015-09-13 2016-01-20 六盘水师范学院 一种内置can总线的视频解码装置
CN105699895A (zh) * 2016-02-05 2016-06-22 重庆长安汽车股份有限公司 整体式交流发电机可变加载试验系统及其试验方法

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