CN115052022A - Adapter plate for vehicle-mounted Ethernet and communication system - Google Patents
Adapter plate for vehicle-mounted Ethernet and communication system Download PDFInfo
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- CN115052022A CN115052022A CN202210785043.XA CN202210785043A CN115052022A CN 115052022 A CN115052022 A CN 115052022A CN 202210785043 A CN202210785043 A CN 202210785043A CN 115052022 A CN115052022 A CN 115052022A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention provides a patch board and a communication system for a vehicle-mounted Ethernet, which are characterized in that a vehicle-mounted Ethernet signal is converted into a USB interface for transmission, so that a PC (personal computer) can conveniently debug a plurality of paths of vehicle-mounted Ethernet, the PC is directly communicated with the USB interface, the physical connection is simplified, the stability is improved, and the patch board for the vehicle-mounted Ethernet comprises the following components: the first PHY module is connected with the vehicle-mounted Ethernet equipment through a vehicle-mounted Ethernet interface, and can convert the vehicle-mounted Ethernet signal from the vehicle-mounted Ethernet interface to an RGMII interface for transmission; the second PHY module is connected with the first PHY module through an RGMII interface, the second PHY module can convert the vehicle-mounted Ethernet signals from the RGMII interface to a USB interface for transmission, the second PHY module is connected with a PC through the USB interface, and power is supplied through the USB interface while the vehicle-mounted Ethernet signals are transmitted.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted Ethernet, in particular to a patch panel and a communication system for the vehicle-mounted Ethernet.
Background
With the rapid development and iterative update of electronic products, most new vehicle types adopt the vehicle-mounted Ethernet to realize a large amount of data transmission to adapt to the increasing function superposition in different degrees at present, and because the vehicle-mounted Ethernet has essential difference compared with the traditional Ethernet, the vehicle-mounted Ethernet can not be directly communicated with a PC, and the following problems exist in the actual research and development:
with the gradual integration of hundreds of megabytes and gigabytes of vehicle-mounted Ethernet into a vehicle-mounted gateway, a single product usually has multiple paths of vehicle-mounted Ethernet, a conventional computer generally has only one network port (TX), and the simultaneous debugging of the multiple paths of vehicle-mounted Ethernet is difficult; the commercial vehicle-mounted Ethernet adapter plate is poor in stability when used, and only the adapter plate is switched from 100Base-T1 to 100Base-Tx, so that the problem of the adapter plate to be tested or the problem of the adapter plate cannot be distinguished when the adapter plate is used for research and development and testing.
Disclosure of Invention
In order to solve the problems, the invention provides a patch board for a vehicle-mounted Ethernet and a communication system, which are convenient for a PC to debug a plurality of paths of vehicle-mounted Ethernet by converting a vehicle-mounted Ethernet signal into a USB interface for transmission, directly communicate with the PC through the USB interface, simplify physical connection and improve stability.
The technical scheme is as follows: a patch panel for a vehicular ethernet network, comprising in connection:
the first PHY module is connected with the vehicle-mounted Ethernet equipment through a vehicle-mounted Ethernet interface and can convert the vehicle-mounted Ethernet signals from the vehicle-mounted Ethernet interface to an RGMII interface for transmission;
the second PHY module is connected with the first PHY module through an RGMII interface, the second PHY module can convert the vehicle-mounted Ethernet signals from the RGMII interface to a USB interface for transmission, the second PHY module is connected with a PC through the USB interface, and power is supplied through the USB interface while the vehicle-mounted Ethernet signals are transmitted.
The MCU module is connected with the first PHY module and the second PHY module and used for switching the support of the first PHY module on kilomega vehicle-mounted Ethernet signals and hundred-mega vehicle-mounted Ethernet signals.
Further, the MCU module is connected to a first dial switch, and the first PHY module switches the configuration of the gigabit vehicle ethernet/the hundred-megabyte vehicle ethernet via the first dial switch.
Furthermore, the MCU module is connected to a second dial switch, and the second dial switch is used to switch a Master/Slave operating mode of the vehicle ethernet.
Further, the first PHY module includes a first PHY chip, the first PHY chip has a model of RTL9010, the second PHY module includes a second PHY chip, and the second PHY chip has a model of LAN 7801.
The first PHY module comprises a PHY chip U3, the PHY chip U3 is connected with the vehicle-mounted Ethernet equipment through a gigabit vehicle-mounted Ethernet interface, ports 18 and 19 of the PHY chip U3 are respectively connected with ports 1 and 4 of a TVS diode D2, ports 2 and 3 of the TVS diode D2 are connected with ports 1 and 4 of L2, ports 2 and 3 of L2 are respectively connected with ports 2 and 1 of a 1000Base-T1 connector J2 after being connected with capacitors C32 and C33, an inductor L2 is a common-mode inductor for large current injection (BCI) protection, ports 3, 4, 5, 6, 7 and 8 of the 1000Base-T1 connector J1 are grounded, a 2-port connecting resistor R1 of the 1000Base-T1 connector J1, a resistor R1 connected in parallel with the capacitor C1, a resistor R1 connected with the rear ground, a resistor R1 connected with the port connecting resistor R1 and a resistor R1 connected between the port connecting resistor R1 and the resistor R1 connected with the ground, a resistor R1 and a resistor R1 connected in parallel with the resistor R1 and a resistor R1, a resistor R1 connected between the ground, a resistor R1 connected with the ground line connected in parallel with the port of the 1000Base-T1, and the port connecting the 1 of the 1000Base-T1, a resistor C1, and a resistor C1, a resistor C, Resistor R39.
The second PHY module includes PHY chip U2, PHY chip U3 is connected to PHY chip U2, ports 29, 28, 27, 26, 25, 23 of PHY chip U3 are connected to ports 12, 14, 15, 16, 17, 13 of PHY chip U2, ports 36, 35, 34, 33, 32, 31 of PHY chip U3 are connected to ports 8, 6, 5, 4, 9, 10 of PHY chip U2; the ports 38, 39, 40, 41, 43 and 44 of the PHY chip U2 are connected to the ports 2, 3, 8, 9, 5 and 6 of the USB connector J1, respectively, the ports 4, 7, 10 and 11 of the USB connector J1 are grounded, and the port 1 of the USB connector J1 provides 5V voltage to power a patch panel for the vehicle ethernet.
The 12 and 11 ports of the MCU chip U4 are respectively connected with the 45 and 46 ports of the PHY chip U3 and the 55 and 56 ports of the PHY chip U2, the 18 port of the MCU chip U14 is connected with the 2 port of the first dial switch J4, and the 1 and 3 ports of the first dial switch J4 respectively correspond to the configuration of a hundred-megabyte vehicular Ethernet 100Base-T and a gigabit vehicular Ethernet 1000 Base-T1; a port 19 of the MCU chip U4 is connected to a port 2 of the second dial switch J3, ports 1 and 3 of the second dial switch J4 respectively correspond to Master and Slave modes of the on-board ethernet, and the Master/Slave operating mode of the on-board ethernet is correspondingly switched by adjusting the second dial switch J3.
A multi-path vehicle-mounted Ethernet equipment communication system is characterized in that a plurality of paths of vehicle-mounted Ethernet equipment are connected through a plurality of the switch boards for the vehicle-mounted Ethernet, the multi-path switch boards for the vehicle-mounted Ethernet are respectively connected with USB-HUB equipment through USB interfaces, and the USB-HUB equipment is connected with a PC.
The adapter plate for the vehicle-mounted Ethernet realizes that hundred-million vehicle-mounted Ethernet signals and kilomega vehicle-mounted Ethernet signals are converted into the USB interface for transmission, so that a PC can debug a plurality of paths of vehicle-mounted Ethernet conveniently, and the communication between a single PC and the plurality of paths of vehicle-mounted Ethernet can be realized by using the combination of the universal USB-HUB and the adapter plate for the vehicle-mounted Ethernet, so that the phenomenon that the PC is difficult to connect the plurality of paths of vehicle-mounted Ethernet due to only one network port is avoided; meanwhile, the adapter plate for the vehicle-mounted Ethernet directly communicates with a PC through a USB interface, physical connection is simplified, and stability is improved.
Drawings
FIG. 1 is a block diagram of a patch panel for an in-vehicle Ethernet network in one embodiment;
FIG. 2 is a block diagram of a patch panel for an in-vehicle Ethernet in another embodiment;
fig. 3 is a circuit schematic of a first PHY module in an embodiment;
fig. 4 is a circuit schematic of a second PHY module in an embodiment;
FIG. 5 is a circuit schematic of the USB connector J1 in an embodiment;
FIG. 6 is a schematic circuit diagram of the voltage conversion chip U1 in an embodiment;
FIG. 7 is a schematic circuit diagram of an MCU module in an embodiment;
fig. 8 is a schematic circuit diagram of a first toggle switch J4 in an embodiment;
fig. 9 is a circuit schematic of the second code switch J3 in an embodiment;
FIG. 10 is a circuit schematic of a BDM debug connector in an embodiment;
FIG. 11 is a schematic circuit diagram of a reset unit in an embodiment;
fig. 12 is a schematic block diagram of a communication system in an embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, an adaptor board for a vehicle ethernet according to the present invention includes:
the first PHY module 1 is connected with the vehicle-mounted Ethernet equipment through a vehicle-mounted Ethernet interface 2, and the first PHY module 1 can convert the vehicle-mounted Ethernet signals from the vehicle-mounted Ethernet interface 2 to an RGMII interface for transmission;
the second PHY module 3 is connected with the first PHY module 1 through an RGMII interface, the second PHY module 3 can convert the vehicle-mounted Ethernet signals from the RGMII interface to a USB interface 4 for transmission, the second PHY module 3 is connected with a PC through the USB interface 4, and power is supplied through the USB interface 4 while the vehicle-mounted Ethernet signals are transmitted;
referring to fig. 2, in an embodiment, on the basis of the modules in fig. 1, the system further includes an MCU module 5, where the MCU module is connected to the first PHY module and is configured to switch support of the first PHY module for the gigabit vehicle-mounted ethernet signal and the hundred-megabyte vehicle-mounted ethernet signal.
The adapter plate for the vehicle-mounted Ethernet of the embodiment realizes that hundred-megabyte vehicle-mounted Ethernet signals and kilomega vehicle-mounted Ethernet signals are transmitted by switching to the USB interface, is convenient for a PC to debug a plurality of paths of vehicle-mounted Ethernet, and is in direct communication with the PC through the USB interface, so that the physical connection is simplified, the stability is improved, the support for the kilomega vehicle-mounted Ethernet is realized through lower hardware cost, and the research and development cost is reduced.
Referring to fig. 3 to 11, in an embodiment of the present invention, the first PHY module includes a PHY chip U3, the PHY chip U3 is RTL9010, the PHY chip U3 is connected to the vehicle ethernet device through a gigabit vehicle ethernet interface, and 18 and 19 ports of the PHY chip U3 are used for connecting to a 1000Base-T1 connector J2.
The PHY chip U3 can convert the vehicle-mounted Ethernet signals from the 1000Base-T1 interface to the RGMII interface for transmission, and the specific connection between the PHY chip U3 and the 1000Base-T1 connector J2 comprises: ports 18 and 19 of the PHY chip U3 are respectively connected to ports 1 and 4 of the TVS diode D2, ports 2 and 3 of the TVS diode D2 are connected to ports 1 and 4 of the L2, ports 2 and 3 of the L2 are respectively connected to ports 2 and 1 of the 1000Base-T1 connector J2 after being connected with capacitors C32 and C33, an inductor L2 is a common mode inductor for large current injection (BCI) protection, ports 3, 4 and 5 of the 1000Base-T1 connector J2, 6. 7, 8 ports are grounded, a 2 port connecting resistor R35 and a capacitor C44 of a 1000Base-T1 connector J2 are grounded after being connected with a resistor R41 and a resistor R42 which are connected in parallel, a 1 port connecting resistor R34 and a resistor R39 of a 1000Base-T1 connector J2 are grounded after being connected with a resistor R41 and a resistor R42 which are connected in parallel, a line is connected between the resistor R35 and the capacitor C44 and between the resistor R34 and the resistor R39, a 19 port of a PHY chip U3 is connected with a crystal oscillator X1, and the model of the crystal oscillator X1 is OSC _125 MHz.
The second PHY module is connected to the first PHY module, and in this embodiment, specifically, the second PHY module includes a PHY chip U2, the model of the PHY chip U2 is LAN7801, the PHY chip U3 is connected to the PHY chip U2, ports 29, 28, 27, 26, 25, and 23 of the PHY chip U3 are connected to ports 12, 14, 15, 16, 17, and 13 of the PHY chip U2, and ports 36, 35, 34, 33, 32, and 31 of the PHY chip U3 are connected to ports 8, 6, 5, 4, 9, and 10 of the PHY chip U2.
The second PHY module is capable of converting the in-vehicle ethernet signal from the RGMII interface to the USB interface for transmission, for transmitting the in-vehicle ethernet signal, see figures 5, 6, in this embodiment, the ports 38, 39, 40, 41, 43, and 44 of the PHY chip U2 are respectively connected to the ports 2, 3, 8, 9, 5, and 6 of the USB connector J1, the ports 4, 7, 10, and 11 of the USB connector J1 are grounded, the USB connector J1 is a USB3.1 connector, the port 1 of the USB connector J1 can provide a voltage VBUS _5V of 5V to power a patch panel for an on-vehicle ethernet, the voltage 5V is input to the port 29 of the PHY chip U2, the voltage 5V is further converted into a voltage 3.3V by the voltage conversion chip U1 to be output, the voltage VBUS _5V is input to the port 5 of the voltage conversion chip U1, the voltage VCC _3V3 is output by the port 3 of the voltage conversion chip U1, and the model number of the voltage conversion chip U1 is MPQ 20051.
Referring to fig. 7, in an embodiment of the present invention, the MCU module is connected to the first PHY module and the second PHY module, and configured to switch support of the first PHY module for gigabit ethernet on board signals and hundred megabyte ethernet on board signals, the 12 and 11 ports of the MCU chip U4 are connected to the 45 and 46 ports of the PHY chip U3 and the 55 and 56 ports of the PHY chip U2, respectively, and the MCU module adopts an MCU chip U4 with a model number of S32K 142.
Referring to fig. 8, the MCU module is connected to a first dial switch, and the first PHY module switches the configuration of the gigabit ethernet/hundred-megabyte ethernet in a vehicle through the first dial switch, specifically in this embodiment, 18 ports of the MCU chip U14 are connected to 2 ports of the first dial switch J4, and 1 port and 3 ports of the first dial switch J4 correspond to the configurations of the hundred-megabyte ethernet 100Base-T and the gigabit ethernet 1000Base-T1, respectively.
Referring to fig. 9, the MCU module is connected to a second dial switch, the second dial switch is used to switch the Master/Slave operating mode of the vehicle ethernet, in this embodiment, a port 19 of the MCU chip U4 is connected to a port 2 of the second dial switch J3, ports 1 and 3 of the second dial switch J4 respectively correspond to the Master and Slave modes of the vehicle ethernet, and the Master/Slave operating mode of the vehicle ethernet is correspondingly switched by adjusting the second dial switch J3.
Referring to fig. 10, the MCU module is further connected to a BDM debug connector, specifically in this embodiment, ports 6, 21, 8, and 7 of the MCU chip U4 are connected to ports 2, 3, 8, and 9 of the BDM debug connector J5, port 1 of the BDM debug connector J5 is connected to a 3.3V power supply, and ports 4 and 10 of the BDM debug connector J5 are grounded.
Specifically, in this embodiment, see fig. 11, the method further includes a reset unit, where the reset unit includes a reset chip M1, the model of the reset chip M1 is SGM811B, and 2 ports of the reset chip M1 are respectively connected to 32 and 47 ports of the PHY chip U2, 6 ports of the MCU chip U4, and 5 ports of the PHY chip U3, and support reset functions for the first PHY module, the second PHY module, and the MCU module.
The adapter board for the vehicle-mounted Ethernet converts a 100Base-T1/1000Base-T1 vehicle-mounted Ethernet interface into a universal USB interface to be directly used for PC end debugging, and the USB-HUB is conveniently adopted to be expanded into multiple paths and simultaneously simplifies physical connection so as to improve signal transmission stability.
The embodiment realizes the conversion from 100Base-T1/1000Base-T1 to RGMII interface through RTL 9010; the LAN780 realizes the conversion from the RGMII interface to the USB, and indirectly realizes the conversion from the USB-T1 interface by adopting a PHY-PHY connection mode;
in the embodiment, the MCU module adopts a universal 8-bit singlechip, the configuration conversion of 100Base-T1/1000Base-T1 and Master/Slave is realized through a dial switch respectively, the USB interface supplies power to the adapter plate and is also used for communication, the USB3.1 is adopted to meet the bandwidth requirement during gigabit network communication, the USB2.0 is compatible to meet the universal bandwidth requirement of a hundred-megabyte network, the support of the hundred-megabyte/gigabit vehicle-mounted Ethernet is realized through lower hardware cost, and the research and development cost is reduced.
Referring to fig. 12, in addition, in the embodiment of the present invention, a multi-path vehicle-mounted ethernet device communication system is further provided, the multi-path vehicle-mounted ethernet device is connected through a plurality of the above-mentioned switch boards for vehicle-mounted ethernet, the multi-path switch boards for vehicle-mounted ethernet are respectively connected with the USB-HUB device through USB interfaces, and the USB-HUB device is connected with the PC.
It should be noted that, in the several embodiments provided in the present application, the disclosed circuit and system can be implemented in other ways, as will be appreciated by those skilled in the art. For example, the above-described circuit embodiments are merely illustrative, and for example, a division of a unit is only a logical functional division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some interfaces, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in each embodiment of the present invention may be a single physical module, or two or more modules may be integrated into one module.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A patch panel for a vehicular ethernet network, comprising in connection:
the first PHY module is connected with the vehicle-mounted Ethernet equipment through a vehicle-mounted Ethernet interface and can convert the vehicle-mounted Ethernet signals from the vehicle-mounted Ethernet interface to an RGMII interface for transmission;
the second PHY module is connected with the first PHY module through an RGMII interface, the second PHY module can convert the vehicle-mounted Ethernet signals from the RGMII interface to a USB interface for transmission, the second PHY module is connected with a PC through the USB interface, and power is supplied through the USB interface while the vehicle-mounted Ethernet signals are transmitted.
2. A patch panel for a vehicular ethernet network according to claim 1, wherein: the first PHY module is connected with the second PHY module and used for switching the support of the first PHY module on kilomega vehicle-mounted Ethernet signals and hundred mega vehicle-mounted Ethernet signals.
3. A patch panel for a vehicular ethernet network according to claim 2, wherein: the MCU module is connected with a first dial switch, and the first PHY module switches the configuration of the gigabit vehicle-mounted Ethernet/hundred-megabyte vehicle-mounted Ethernet through the first dial switch.
4. A patch panel for a vehicular ethernet network according to claim 2, wherein: the MCU module is connected with a second dial switch, and the second dial switch is used for switching a Master/Slave working mode of the vehicle-mounted Ethernet.
5. A patch panel for a vehicular ethernet network according to claim 2, wherein: the first PHY module comprises a first PHY chip, the model of the first PHY chip is RTL9010, the second PHY module comprises a second PHY chip, and the model of the second PHY chip is LAN 7801.
6. A patch panel for a vehicular ethernet network according to claim 5, wherein: the first PHY module comprises a PHY chip U3, the PHY chip U3 is connected with a vehicle-mounted Ethernet device through a gigabit vehicle-mounted Ethernet interface, ports 18 and 19 of the PHY chip U3 are respectively connected with ports 1 and 4 of a TVS diode D2, ports 2 and 3 of the TVS diode D2 are connected with ports 1 and 4 of L2, ports 2 and 3 of L2 are respectively connected with a capacitor C32 and a capacitor C33 and then connected with ports 2 and 1 of a 1000Base-T1 connector J2, an inductor L2 is a common-mode inductor for large-current injection protection, ports 3, 4, 5, 6, 7 and 8 of the 1000Base-T1 connector J1 are grounded, a port 2 of the 1000Base-T1 connector J1 is connected with a resistor R1, a capacitor C1 is connected with a resistor R1 and a resistor R1 connected in parallel, and then grounded, a resistor R1 and a resistor R1 are connected between the port 1 of the 1000Base-T1 connector J1 and the resistor R1 are connected with a resistor R1 and the resistor R1 are connected in parallel, and the resistor R1 are connected with the resistor C1, and the resistor R1, and the resistor are connected in parallel line are connected in parallel, and the resistor C, and the resistor R1, and the resistor are connected in parallel, and the resistor C are connected between the parallel, and the parallel line are connected with the ground, and the line, and the ground, Resistor R39.
7. A patch panel for a vehicular ethernet network according to claim 6, wherein: the second PHY module includes PHY chip U2, PHY chip U3 is connected to PHY chip U2, ports 29, 28, 27, 26, 25, 23 of PHY chip U3 are connected to ports 12, 14, 15, 16, 17, 13 of PHY chip U2, ports 36, 35, 34, 33, 32, 31 of PHY chip U3 are connected to ports 8, 6, 5, 4, 9, 10 of PHY chip U2; the ports 38, 39, 40, 41, 43 and 44 of the PHY chip U2 are connected to the ports 2, 3, 8, 9, 5 and 6 of the USB connector J1, respectively, the ports 4, 7, 10 and 11 of the USB connector J1 are grounded, and the port 1 of the USB connector J1 provides 5V voltage to power a patch panel for the vehicle ethernet.
8. A patch panel for a vehicular ethernet network according to claim 7, wherein: the 12 and 11 ports of the MCU chip U4 are respectively connected with the 45 and 46 ports of the PHY chip U3 and the 55 and 56 ports of the PHY chip U2, the 18 port of the MCU chip U14 is connected with the 2 port of the first dial switch J4, and the 1 and 3 ports of the first dial switch J4 respectively correspond to the configuration of a hundred-megabyte vehicular Ethernet 100Base-T and a gigabit vehicular Ethernet 1000 Base-T1; a port 19 of the MCU chip U4 is connected to a port 2 of the second dial switch J3, ports 1 and 3 of the second dial switch J4 respectively correspond to Master and Slave modes of the on-board ethernet, and the Master/Slave operating mode of the on-board ethernet is correspondingly switched by adjusting the second dial switch J3.
9. A multichannel vehicle-mounted Ethernet equipment communication system is characterized in that: a plurality of paths of vehicle-mounted Ethernet equipment are connected through a plurality of adapter plates for vehicle-mounted Ethernet according to claim 1, the adapter plates for vehicle-mounted Ethernet are respectively connected with USB-HUB equipment through USB interfaces, and the USB-HUB equipment is connected with a PC machine.
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| CN202210785043.XA CN115052022A (en) | 2022-07-05 | 2022-07-05 | Adapter plate for vehicle-mounted Ethernet and communication system |
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| CN202210785043.XA CN115052022A (en) | 2022-07-05 | 2022-07-05 | Adapter plate for vehicle-mounted Ethernet and communication system |
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| CN214623371U (en) * | 2021-05-27 | 2021-11-05 | 上海励驰半导体有限公司 | Vehicle-mounted Ethernet interface conversion device |
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2022
- 2022-07-05 CN CN202210785043.XA patent/CN115052022A/en active Pending
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| CN110391975A (en) * | 2018-04-20 | 2019-10-29 | 比亚迪股份有限公司 | Information interaction system and vehicle based on vehicle-mounted Ethernet |
| CN111858425A (en) * | 2020-06-02 | 2020-10-30 | 深圳市周立功单片机有限公司 | USB-optical fiber conversion device and USB communication equipment |
| CN214623371U (en) * | 2021-05-27 | 2021-11-05 | 上海励驰半导体有限公司 | Vehicle-mounted Ethernet interface conversion device |
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