CN114911732A - Vehicle-mounted Ethernet adapter plate and multi-path vehicle-mounted Ethernet equipment communication system - Google Patents
Vehicle-mounted Ethernet adapter plate and multi-path vehicle-mounted Ethernet equipment communication system Download PDFInfo
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- CN114911732A CN114911732A CN202210783961.9A CN202210783961A CN114911732A CN 114911732 A CN114911732 A CN 114911732A CN 202210783961 A CN202210783961 A CN 202210783961A CN 114911732 A CN114911732 A CN 114911732A
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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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
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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
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4208—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides a vehicle-mounted Ethernet adapter plate and a multi-path vehicle-mounted Ethernet equipment communication system, which realize the network interface switching compatible with a hundred-million vehicle-mounted Ethernet and a kilomega vehicle-mounted Ethernet through a low-cost high-performance hardware scheme so as to conveniently communicate with the vehicle-mounted Ethernet, and comprises the following steps: the first vehicle-mounted Ethernet signal conversion module is connected with the vehicle-mounted Ethernet equipment through a kilomega 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 vehicle-mounted Ethernet signal conversion module is connected with the first vehicle-mounted Ethernet signal conversion module, and can convert the vehicle-mounted Ethernet signal from an RGMII interface to an RJ45 interface for transmission and is used for transmitting the vehicle-mounted Ethernet signal; the MCU module is used for switching the support of the first vehicle-mounted Ethernet signal conversion module on gigabit vehicle-mounted Ethernet signals and hundred-megabyte vehicle-mounted Ethernet signals.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted Ethernet, in particular to a vehicle-mounted Ethernet adapter plate and a multi-path vehicle-mounted Ethernet equipment communication system.
Background
In recent years, with the development of the automobile industry, a series of advanced driving assistance functions have been sprayed. In order to meet the requirements, a severe test is brought to the traditional electronic appliance architecture, more and more electronic components are required to participate in information interaction, and therefore more strict challenges are provided for the aspects of network transmission rate, stability, load rate and the like. In addition, with the increasing demand of people on automobile multimedia and audio-video systems, various audio-video systems are available at present, with the acceleration of the automobile electromotion process, scenes of controlling vehicles by mobile phones and mutual interaction are continuously expanded, and the networking demand can be expected to only continuously expand in the future, and the networking demand inside or outside the automobile is different, so that the importance of more network bandwidths is provided.
For this reason, the in-vehicle ethernet comes. Firstly, one of the primary advantages of ethernet is that it supports multiple network media, and thus can be used in the automotive field; meanwhile, as the physical medium is irrelevant to the protocol, the vehicle-mounted Ethernet protocol can be correspondingly adjusted and expanded in the field of automobiles to form a whole set of vehicle-mounted Ethernet protocol, and the protocol can be continuously developed and used for a long time in the future.
Due to the essential difference between the vehicle-mounted ethernet (hereinafter referred to as T1) and the conventional ethernet, the following problems often exist in the development of the vehicle-mounted ethernet, which indirectly affect the project development node:
1. the vehicle-mounted Ethernet adapter plate can support 1000Base-T1 (hereinafter referred to as gigabit T1), is difficult to buy in the market, is very expensive and is difficult to buy in a large amount for developing the vehicle-mounted Ethernet;
2. the commercially available vehicle-mounted Ethernet adapter plate has poor stability due to different hardware schemes, and the problem of the product to be tested or the adapter plate can not be distinguished in actual test, which brings great inconvenience to the research and development of the Ethernet part of the vehicle-mounted product;
3. almost no vehicle-mounted Ethernet adapter board in the market can be compatible with the hundred million T1 and the gigabit T1 at the same time;
4. in addition, when the vehicle-mounted Ethernet is researched and developed, an embedded engineer can use the terminal debugging equipment of the USB-TTL at the same time, so that physical connection is messy in the actual debugging process, most of the USB-TTL terminals purchased in the market support 3.3V signal level and cannot be used for 1.8V, and the terminal debugging equipment which is possibly burnt is used by mistake.
Disclosure of Invention
In view of the above problems, the present invention provides a vehicle-mounted ethernet adapter board and a multi-channel vehicle-mounted ethernet device communication system, which implement network interface adapter compatible with a hundred-megabyte vehicle-mounted ethernet and a gigabit vehicle-mounted ethernet through a low-cost high-performance hardware scheme, so as to facilitate communication with the vehicle-mounted ethernet.
The technical scheme is as follows: a vehicle-mounted Ethernet adapter plate is characterized by comprising the following connected components:
the first vehicle-mounted Ethernet signal conversion module is connected with the vehicle-mounted Ethernet equipment through a gigabit vehicle-mounted Ethernet interface, and can convert a vehicle-mounted Ethernet signal from the vehicle-mounted Ethernet interface to an RGMII interface for transmission;
the second vehicle-mounted Ethernet signal conversion module is connected with the first vehicle-mounted Ethernet signal conversion module, and can convert the vehicle-mounted Ethernet signal from an RGMII interface to an RJ45 interface for transmission, so as to transmit the vehicle-mounted Ethernet signal;
and the MCU module is respectively connected with the first vehicle-mounted Ethernet signal conversion module and the second vehicle-mounted Ethernet signal conversion module and is used for switching the support of the first vehicle-mounted Ethernet signal conversion module on kilomega vehicle-mounted Ethernet signals and hundred-mega vehicle-mounted Ethernet signals.
Further, the MCU module is connected to a first dial-up switch, and the first vehicle-mounted ethernet signal conversion module switches the configuration of the gigabit vehicle-mounted ethernet/the hundred-megabyte vehicle-mounted ethernet via the first dial-up switch.
Further, the first vehicle-mounted ethernet signal conversion 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.
The USB-TTL module supplies power to the adapter plate through a USB interface, can be connected with a debugging port of the vehicle-mounted Ethernet equipment through the TTL interface, and is connected with a PC through the USB interface and used for transmitting debugging signals.
Further, the USB-TTL module includes an interface chip U2, the model of the interface chip U2 is CP2102, the USB-TTL module provides 5V voltage through a USB interface, and the USB-TTL module obtains 1.8V/3.3V voltage through voltage conversion chip conversion.
Further, the first vehicle-mounted ethernet signal conversion module and the second vehicle-mounted ethernet signal conversion module respectively employ PHY chips.
Further, the first vehicle-mounted ethernet signal conversion module comprises a T1-PHY chip, and the model of the T1-PHY chip is RTL 9010.
Further, the second vehicle-mounted ethernet signal conversion module comprises a TX-PHY chip, and the TX-PHY chip is DP 83867.
Further, the first vehicle-mounted Ethernet signal conversion module is connected with the vehicle-mounted Ethernet device through a 1000Base-T1 connector.
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 vehicle-mounted Ethernet adapter plates, the plurality of paths of vehicle-mounted Ethernet adapter plates are respectively connected to a switch, and the switch is connected with a PC host.
The vehicle-mounted Ethernet adapter plate realizes the network interface switching compatible with the hundred-million vehicle-mounted Ethernet and the kilomega vehicle-mounted Ethernet through a low-cost high-performance hardware scheme so as to be convenient for communication with the vehicle-mounted Ethernet, can be simply switched through a switch, and converts the vehicle-mounted Ethernet interface of the hundred-million vehicle-mounted Ethernet/the kilomega vehicle-mounted Ethernet into a standard RJ45 interface which is directly used for debugging a PC end; in addition, the vehicle-mounted Ethernet adapter plate can realize the communication between a single PC and a plurality of paths of vehicle-mounted Ethernet equipment through the combination of a common switch and a plurality of adapter plates, so as to construct a communication system of the plurality of paths of vehicle-mounted Ethernet equipment, and in addition, the vehicle-mounted Ethernet adapter plate provided by the invention has a USB-TTL debugging terminal compatible with 1.8V and 3.3V while supplying power through a USB interface, so that the physical connection is simplified, and the stability of the debugging equipment is improved.
Drawings
Fig. 1 is a block diagram of a vehicle-mounted ethernet adapter plate according to the present invention;
fig. 2 is a hardware block diagram of a vehicle-mounted ethernet adapter board in an embodiment;
fig. 3 is a schematic circuit diagram of a first vehicle-mounted ethernet signal conversion module in an embodiment;
fig. 4 is a schematic circuit diagram of a second vehicle-mounted ethernet signal conversion module in the embodiment;
fig. 5 is a circuit schematic diagram of an RJ45 interface in an embodiment;
FIG. 6 is a circuit schematic of the MUC module in an embodiment;
FIG. 7 is a schematic circuit diagram of a USB-TTL module according to an embodiment;
FIG. 8 is a circuit schematic of a first dip switch in an embodiment;
FIG. 9 is a circuit schematic of a second dip switch in an embodiment;
fig. 10 is a circuit schematic of the TTL connector J11 in the embodiment;
FIG. 11 is a schematic circuit diagram of the voltage conversion chip U3 in an embodiment;
FIG. 12 is a circuit schematic of the voltage conversion chip U4 in an embodiment;
FIG. 13 is a circuit schematic of the voltage converter chip U5 in an embodiment;
fig. 14 is a schematic circuit diagram of the connector J2 in the embodiment.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention are described in further detail below. In the description herein, references to the terms "embodiment" or the like are intended to mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Referring to fig. 1, the vehicle ethernet patch panel of the present invention includes:
the first vehicle-mounted Ethernet signal conversion module 1 is connected with vehicle-mounted Ethernet equipment through a gigabit vehicle-mounted Ethernet interface, and the first vehicle-mounted Ethernet signal conversion module 1 can convert a vehicle-mounted Ethernet signal from the vehicle-mounted Ethernet interface to an RGMII interface for transmission;
the second vehicle-mounted ethernet signal conversion module 2 is connected with the first vehicle-mounted ethernet signal conversion module 1, and the second vehicle-mounted ethernet signal conversion module 2 can convert the vehicle-mounted ethernet signal from the RGMII interface to the RJ45 interface for transmission, so as to transmit the vehicle-mounted ethernet network signal;
the MCU module 3 is respectively connected with the first vehicle-mounted Ethernet signal conversion module 1 and the second vehicle-mounted Ethernet signal conversion module 2 and is used for switching the support of the first vehicle-mounted Ethernet signal conversion module 1 on kilomega vehicle-mounted Ethernet signals and hundred-mega vehicle-mounted Ethernet signals;
USB-TTL module 4, USB-TTL module 4 supplies power for the keysets through the USB interface, and USB-TTL module 4 can pass through TTL interface connection on-vehicle ethernet, and USB-TTL module 4 connects USB-TTL terminal debugging equipment for the transmission debugging signal.
Referring to fig. 2 to 14, in particular, in an embodiment of the present invention, the first vehicle-mounted ethernet signal conversion module includes T1-PHY chip U6, T1-PHY chip U6 is RTL9010, T1-PHY chip U6 connects the vehicle-mounted ethernet device through a gigabit vehicle-mounted ethernet interface, and 18 and 19 ports of T1-PHY chip U6 are used for connecting the 1000Base-T1 connector J3, in particular, in this embodiment, the 1000Base-T1 connector J3 uses a Z-snap connector of john, and the vehicle-mounted ethernet connector uses a universal snap to prevent the same connectors from mutually failing and using different colors and corresponding anti-theft designs to avoid such a situation, and in this embodiment, the universal snap used by the patch panel is to be able to match all color connectors of the same family.
The T1-PHY chip U6 can convert the vehicle-mounted Ethernet signals from a 1000Base-T1 interface to an RGMII interface for transmission, and the specific connection of the T1-PHY chip U6 and a 1000Base-T1 connector J3 comprises the following steps: ports 18 and 19 of a T1-PHY chip U6 are respectively connected to ports 1 and 2 of a D8, D8 is a TVS device for electrostatic protection, then D8 is connected to ports 1 and 4 of an L3, ports 2 and 3 of an L3 are respectively connected with capacitors C32 and C33 and then connected to ports 2 and 1 of a 1000Base-T1 connector J3, L3 is a common-mode inductor for large current injection (BCI) protection, ports 3, 4, 5, 6, 7 and 8 of a 1000Base-T1 connector J3 are grounded, a 2 port of a 1000Base-T1 connector J3 is connected with a resistor R27, a capacitor C40 is connected with a resistor R128 and a resistor R127 which are connected in parallel and then grounded, a 1 port of a 1000Base-T1 connector J6867 is connected with a resistor R26, a resistor R33 and a resistor R33 which are connected in parallel and then grounded between leads.
The 23, 26, 29 ports of the T1-PHY chip U6 also support the Strap Config configuration, and the 28, 27 ports of the T1-PHY chip U6 also support the configuration of PHY _ ADDRESS.
The second vehicle-mounted ethernet signal conversion module is connected to the first vehicle-mounted ethernet signal conversion module, and in this embodiment, specifically, the second vehicle-mounted ethernet signal conversion module includes a TX-PHY chip U7, the model of the TX-PHY chip U7 is DP83867, the T1-PHY chip U6 is connected to the TX-PHY chip U7, the ports 29, 28, 27, 26, 25, and 23 of the T1-PHY chip U6 are connected to the ports 40, 38, 37, 36, 35, and 52 of the TX-PHY chip U7, and the ports 36, 35, 34, 33, 32, and 31 of the T1-PHY chip U6 are connected to the ports 44, 45, 46, 47, 53, and 43 of the TX-PHY chip U7.
The second on-board ethernet signal conversion module is capable of converting the on-board ethernet signal from the RGMII interface to the RJ45 interface for transmission, and is configured to transmit the on-board ethernet signal, in this embodiment, specifically, 2, 3, 5, 6 ports of the TX-PHY chip U7 are connected to 1, 2, 4, 5 ports of the U8, 10, 11, 13, 14 of the TX-PHY chip U7 are connected to 1, 2, 4, 5 ports of the U9, 10, 9, 7, 6 ports of the U8 are connected to 2, 3, 4, 5 ports of the RJ45 interface J5, 10, 9, 7, 6 ports of the U9 are connected to 6, 7, 8, 9 ports of the RJ45 interface J5, and RJ45 uses a gigabit network port with a network transformer to meet gigabit bandwidth requirements, U8 and U9 are ethernet signal line electrostatic protection s devices, and TPD4E qdq 1 is a model TPD4 qdqd 4.
In this embodiment, a 25 port of the T1-PHY chip U6 is further connected to a 2 port of the second dip switch J4, and ports 1 and 3 of the second dip switch J4 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 dip switch J4.
The MCU module is respectively connected with the first vehicle-mounted Ethernet signal conversion module and the second vehicle-mounted Ethernet signal conversion module and is used for switching the support of the first vehicle-mounted Ethernet signal conversion module on gigabit vehicle-mounted Ethernet signals and hundred-megabyte vehicle-mounted Ethernet signals, ports 12 and 11 of the MCU chip U10 are respectively connected with ports 45 and 46 of the T1-PHY chip U6 and ports 21 and 20 of the TX-PHY chip U7, and the model of the MCU chip U10 in the embodiment is S9S08DZ16F1 MLC;
the MCU module is connected to a first dial switch, and the first vehicle-mounted ethernet signal conversion module switches the configuration of the gigabit vehicle-mounted ethernet/the hundred-megabyte vehicle-mounted ethernet through the first dial switch, specifically in this embodiment, 18 ports of the MCU chip U10 are connected to 2 ports of the first dial switch J6, and 1 and 3 ports of the first dial switch J6 correspond to the configurations of the hundred-megabyte vehicle-mounted ethernet 100Base-T and the gigabit vehicle-mounted ethernet 1000Base-T1, respectively.
In the embodiment of the invention, the device also comprises a USB-TTL module, wherein the USB-TTL module supplies power to the adapter plate through a USB interface, the USB-TTL module can be connected with a debugging port of the vehicle-mounted Ethernet equipment through the TTL interface, and the USB-TTL module is connected with a PC through the USB interface and used for transmitting debugging signals.
The USB-TTL module comprises an interface chip U2, the model of the interface chip U2 is CP2102, 3 and 4 ports of the interface chip U2 are respectively connected to 3 and 2 ports of a USB connector J1, 20 and 21 ports of the interface chip U2 are respectively connected to 3 and 2 ports of a TTL connector J11, the TTL connector J11 is used for debugging ports of vehicle-mounted Ethernet equipment, and the USB-TTL module is connected with a PC through a USB connector J1 and used for transmitting debugging signals.
The USB-TTL module provides 5V voltage through a USB interface, the USB-TTL module obtains 1.8V/3.3V voltage through conversion of a voltage conversion chip, specifically, a port 1 of a USB connector J1 is connected with an F1, a diode D1 outputs 5V voltage VBUS _5V, ports 2 and 3 of the USB connector J1 are further connected with ports 5 and 3 of the voltage conversion chip U1, a port 4 of the USB connector J1 is grounded, a port 1 of a voltage conversion chip U1 is connected with 5V voltage VBUS _5V, a port 4 of the U1 is grounded, and the model number of the voltage conversion chip U1 is TPD2E 001.
The voltage conversion chip comprises a voltage conversion chip U3, the voltage conversion chip U3 is used for converting to obtain 2.5V voltage, a port 1 of the voltage conversion chip U3 is connected with 5V voltage VBUS _5V, a port 5 of the voltage conversion chip U3 outputs 2.5V voltage VCC _2V5, a port 3 of the voltage conversion chip U3 is connected with the port 1, a port 2 of the voltage conversion chip U3 is grounded, capacitors C11 and C12 are connected between the port 1 and the port 2 of the voltage conversion chip U3, a port 4 of the voltage conversion chip U3 is grounded after being connected with a capacitor C19, and the type of the U3 is TLV 70025.
The voltage conversion chip comprises a voltage conversion chip U5, the voltage conversion chip U5 is used for converting to obtain 1.1V and 3.3V voltages, a 3 port of the voltage conversion chip U5 is connected with a voltage VBUS _5V, a 6 port of the voltage conversion chip U5 is connected with an inductor L1 and then outputs a 1.1V voltage VCC _1V1, a 10 port of the voltage conversion chip U5 is connected with an inductor L2 and then outputs a 3.3V voltage VCC _3V3, and the model of U5 is TPS 62410.
The voltage conversion chip comprises a voltage conversion chip U4, a 3-port of the voltage conversion chip U4 is connected with a 3.3V voltage VCC _3V3, a 5-port of the voltage conversion chip U4 outputs a 1.8V voltage VCC _1V8, a connector J2 is further arranged in the embodiment, 1 and 3-ports of the connector J2 correspond to the 3.3V voltage VCC _3V3 and the 1.8V voltage VCC _1V8 respectively, 1.8V/3.3V level switching can be realized through cold jump, and the model number of U4 is TLV 70018.
The USB interface of the USB-TTL module is directly connected with a computer, on one hand, the USB interface supplies power to a vehicle-mounted Ethernet adapter plate, on the other hand, the USB-TTL module is used for realizing communication with a U2 chip and converting the communication into communication between the TTL interface and a debugging port of vehicle-mounted Ethernet equipment, and the USB-TTL function can also be independently used in other application scenes of USB-TTL; the TTL port is usually connected to a TTL debug port of a debugged device, such as a vehicle-mounted ethernet device.
USB-TTL terminal debugging equipment is commercially available equipment, most of the USB-TTL terminal debugging equipment only supports a 3.3V level and is unstable in work; the CP2102 interface chip in the vehicle-mounted ethernet adapter board provided in this embodiment is a core device for implementing a USB-TTL function, and can implement a USB-TTL function on a current adapter board, and obtain 1.8V and 3.3V voltages through conversion of the voltage conversion chip, where the 1.8V and 3.3V voltages can be switched at will according to requirements, and the operation is very stable, and in this embodiment, the USB-TTL function is implemented through the CP2102 interface chip, thereby facilitating transmission of company debugging signals, and simultaneously, the independent switching of 1.8V/3.3V signal levels can be implemented, and some products of different vehicle-mounted ethernet products are limited by a hardware scheme on a serial port debugging interface circuit design are 1.8V levels, and some products are 3.3V levels, so the USB-TTL debugging terminal needs to make an adaptation according to a product design.
Other ports of each module in the embodiment are some conventional peripheral circuits set according to an operation manual, and specific connection relations can be obtained by referring to the circuit schematic diagrams given in fig. 3 to 9, which are not described one by one here.
The vehicle-mounted Ethernet adapter plate realizes the network interface switching compatible with the hundred-million vehicle-mounted Ethernet and the kilomega vehicle-mounted Ethernet through a low-cost high-performance hardware scheme so as to be convenient for communication with the vehicle-mounted Ethernet, can be simply switched through a switch, and converts the vehicle-mounted Ethernet interface of the hundred-million vehicle-mounted Ethernet/the kilomega vehicle-mounted Ethernet into a standard RJ45 interface which is directly used for debugging a PC end; in addition, the vehicle-mounted Ethernet adapter plate can realize the communication between a single PC and a plurality of paths of vehicle-mounted Ethernet equipment through the combination of a common switch and a plurality of adapter plates, so as to construct a communication system of the paths of vehicle-mounted Ethernet equipment, and in addition, the vehicle-mounted Ethernet adapter plate has a 1.8V and 3.3V compatible USB-TTL debugging terminal while supplying power through a USB interface, thereby simplifying physical connection and improving the stability of debugging equipment.
In an embodiment of the present invention, a multi-path vehicle-mounted ethernet device communication system is further provided, where multiple vehicle-mounted ethernet switch boards are connected to the multi-path vehicle-mounted ethernet device, the multi-path vehicle-mounted ethernet switch boards are respectively connected to a switch, the switch is connected to a PC host, and the system can realize communication between a single PC and the multi-path vehicle-mounted ethernet device by combining a common switch and multiple switch boards.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A vehicle-mounted Ethernet adapter plate is characterized by comprising the following connected components:
the first vehicle-mounted Ethernet signal conversion module is connected with the vehicle-mounted Ethernet equipment through a gigabit vehicle-mounted Ethernet interface, and can convert a vehicle-mounted Ethernet signal from the vehicle-mounted Ethernet interface to an RGMII interface for transmission;
the second vehicle-mounted Ethernet signal conversion module is connected with the first vehicle-mounted Ethernet signal conversion module, and can convert the vehicle-mounted Ethernet signal from an RGMII interface to an RJ45 interface for transmission, so as to transmit the vehicle-mounted Ethernet signal;
and the MCU module is respectively connected with the first vehicle-mounted Ethernet signal conversion module and the second vehicle-mounted Ethernet signal conversion module and is used for switching the support of the first vehicle-mounted Ethernet signal conversion module on kilomega vehicle-mounted Ethernet signals and hundred-mega vehicle-mounted Ethernet signals.
2. The vehicle-mounted Ethernet adapter plate of claim 1, wherein: the MCU module is connected with a first dial switch, and the first vehicle-mounted Ethernet signal conversion module switches the configuration of the gigabit vehicle-mounted Ethernet/the hundred-megabyte vehicle-mounted Ethernet through the first dial switch.
3. The vehicle-mounted Ethernet adapter plate of claim 1, wherein: the first vehicle-mounted Ethernet signal conversion 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.
4. The vehicle-mounted Ethernet adapter plate of claim 1, wherein: the USB-TTL module supplies power to the adapter plate through a USB interface, can be connected with a debugging port of the vehicle-mounted Ethernet equipment through the TTL interface, and is connected with a PC through the USB interface and used for transmitting debugging signals.
5. The vehicle-mounted Ethernet adapter plate of claim 4, wherein: the USB-TTL module comprises an interface chip U2, the type of the interface chip U2 is CP2102, the USB-TTL module provides 5V voltage through a USB interface, and the USB-TTL module obtains 1.8V/3.3V voltage through conversion of a voltage conversion chip.
6. The vehicle-mounted ethernet patch panel of claim 1, wherein: the first vehicle-mounted Ethernet signal conversion module and the second vehicle-mounted Ethernet signal conversion module respectively adopt PHY chips.
7. The vehicle-mounted Ethernet adapter plate of claim 6, wherein: the first vehicle-mounted Ethernet signal conversion module comprises a T1-PHY chip, and the model of the T1-PHY chip is RTL 9010.
8. The vehicle-mounted Ethernet adapter plate of claim 7, wherein: the second vehicle-mounted Ethernet signal conversion module comprises a TX-PHY chip, and the model of the TX-PHY chip is DP 83867.
9. The vehicle-mounted Ethernet adapter plate of claim 1, wherein: the first vehicle-mounted Ethernet signal conversion module is connected with the vehicle-mounted Ethernet equipment through a 1000Base-T1 connector.
10. 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 vehicle-mounted Ethernet switch boards according to claim 1, the plurality of paths of vehicle-mounted Ethernet switch boards are respectively connected to a switch, and the switch is connected with a PC host.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210783961.9A CN114911732A (en) | 2022-07-05 | 2022-07-05 | Vehicle-mounted Ethernet adapter plate and multi-path vehicle-mounted Ethernet equipment communication system |
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| CN202210783961.9A CN114911732A (en) | 2022-07-05 | 2022-07-05 | Vehicle-mounted Ethernet adapter plate and multi-path vehicle-mounted Ethernet equipment communication system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117082107A (en) * | 2023-10-16 | 2023-11-17 | 北京茵沃汽车科技有限公司 | Communication debugging equipment and communication debugging method |
| CN117411839A (en) * | 2023-10-12 | 2024-01-16 | 昆易电子科技(上海)有限公司 | Data processing device, method, electronic device and storage medium |
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2022
- 2022-07-05 CN CN202210783961.9A patent/CN114911732A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117411839A (en) * | 2023-10-12 | 2024-01-16 | 昆易电子科技(上海)有限公司 | Data processing device, method, electronic device and storage medium |
| CN117082107A (en) * | 2023-10-16 | 2023-11-17 | 北京茵沃汽车科技有限公司 | Communication debugging equipment and communication debugging method |
| CN117082107B (en) * | 2023-10-16 | 2024-02-06 | 北京茵沃汽车科技有限公司 | Communication debugging equipment and communication debugging method |
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