CN220292038U - USB changes on-vehicle ethernet equipment - Google Patents
USB changes on-vehicle ethernet equipment Download PDFInfo
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- CN220292038U CN220292038U CN202321674104.1U CN202321674104U CN220292038U CN 220292038 U CN220292038 U CN 220292038U CN 202321674104 U CN202321674104 U CN 202321674104U CN 220292038 U CN220292038 U CN 220292038U
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- 238000012544 monitoring process Methods 0.000 claims description 3
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- 238000004891 communication Methods 0.000 description 5
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- 230000004927 fusion Effects 0.000 description 1
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Abstract
The utility model relates to a USB-to-vehicle Ethernet device, which comprises a computer and an electronic control unit, and further comprises a 100BASE-T1/1000BASE-T1 conversion module, wherein one end of the 100BASE-T1/1000BASE-T1 conversion module is connected with the computer through a USB3.0, and the other end of the 100BASE-T1/1000BASE-T1 electronic control unit is connected with the vehicle Ethernet connector; the 100BASE-T1/1000BASE-T1 conversion module supplies power through the USB3.0 provided by the computer, and data in the computer can be converted into 100BASE-T1/1000BASE-T1 data of a twisted pair through two pairs of differential line data of the USB3.0 in the test process.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted electronic systems, in particular to a USB-to-vehicle Ethernet device.
Background
In recent years, the complexity of vehicle-mounted electronic systems is higher and higher, the requirements of interfaces of sensors, controllers and actuators on bandwidths are also increased, and the requirements of different computing units in a vehicle for communication between different domains are higher and higher.
This complexity directly leads to an increase in the use of the bus in the vehicle. In-vehicle ethernet is a new type of local area network technology for ethernet connection to in-vehicle electronics units. The in-vehicle ethernet is carried on a transmission medium of a single wire pair unshielded twisted pair, and the use of a smaller and more compact connector will reduce in-vehicle interconnection costs by up to 80% and in-vehicle wiring weights by up to 30%.
The vehicle-mounted electronic control units (Electronic Control Unit, ECU) communicate with each other by using 100BASE-T1/1000BASE-T1, and control information and audio/video data are transmitted by using corresponding bandwidths.
In the prior art, referring to FIG. 1, in order to test an ECU based on 100BASE-T1, 1000BASE-T1 technology, the associated test hardware and software is required. In general, test software is installed on a computer, and the computer only supports a fast ethernet (100 BASE-TX) or gigabit ethernet (1000 BASE-T) protocol through an RJ45 interface, so that the problem of mismatch of communication protocols between the computer and the ECU exists. It is therefore conventional practice to convert the conventional ethernet protocol based on the RJ45 interface into the on-board ethernet protocol by means of a conversion device. But as computers become lighter, more and more computers no longer support the RJ45 interface.
Thus, the test person is faced with the problem of mismatch in the manner of data transmission between the computer and the ECU under test, resulting in failure to pass the test of the 100BASE-T1/1000BASE-T1 based ECU by the computer.
Disclosure of Invention
In view of the shortcomings of the prior art, the utility model aims to provide a USB-to-vehicle Ethernet device, which uses a USB3.0 interface to convert control information and audio/video data into 100BASE-T1/1000BASE-T1 needed by an ECU, and the USB3.0 standard is defined by USB standard alliance USB-IF, and can support transmission of 5Gbps data theoretically at most. At present, the USB3.0 is widely applied to computers, and the USB3.0 interface can well replace an RJ45 interface in consideration of portability for testers and universality of the interface.
The above object of the present utility model is achieved by the following technical solutions:
the USB-to-vehicle Ethernet device comprises a computer and an electronic control unit, and further comprises a 100BASE-T1/1000BASE-T1 conversion module, wherein one end of the 100BASE-T1/1000BASE-T1 conversion module is connected with the computer through a USB3.0, and the other end of the 100BASE-T1/1000BASE-T1 electronic control unit is connected with the vehicle-mounted Ethernet connector;
the 100BASE-T1/1000BASE-T1 conversion module supplies power through the USB3.0 provided by the computer, and data in the computer can be converted into 100BASE-T1/1000BASE-T1 data of a twisted pair through two pairs of differential line data of the USB3.0 in the test process.
The present utility model may be further configured in a preferred example to: the USB3.0 two-pair differential line data is converted into 100BASE-T1/1000BASE-T1 data of a twisted pair.
The present utility model may be further configured in a preferred example to: the two pairs of ultra-high-speed differential signals of the USB3.0 are a transmitting differential pair and a receiving differential pair respectively; and both 100BASE-T1 and 1000BASE-T1 realize data receiving and transmitting through a pair of twisted pair wires;
in the transmitting process, the transmitting data line of the USB3.0 converts the data of the bus signal (0, 1) into a 0101 digital signal through the microcontroller module, and then the 0101 digital signal is directly converted into a-1, 0,1 100BASE-T1/1000BASE-T1 bus signal by the 100BASE-T1/1000BASE-T1 physical layer chip; the receiving process is also reversed.
The present utility model may be further configured in a preferred example to: the 100BASE-T1/1000BASE-T1 conversion module comprises a power supply module, a microcontroller module, a USB conversion Ethernet chip, a 100BASE-T1/1000BASE-T1 physical layer module and an Ethernet connector circuit module, wherein the power supply module is electrically connected with the microcontroller module through a USB3.0 connector;
the microcontroller module is connected with the 100BASE-T1/1000BASE-T1 physical layer module and is used for configuring and controlling the physical layer module, monitoring the working state and the physical layer type of the physical layer module and indicating through an LED;
the USB conversion Ethernet chip is respectively connected with the USB3.0 connector and the 100BASE-T1/1000BASE-T1 physical layer module and is used for receiving the computer Ethernet data and transmitting the data to the 100BASE-T1/1000BASE-T1 physical layer module through own processing;
the vehicle-mounted Ethernet connector is in data connection with the 100BASE-T1/1000BASE-T1 physical layer module, and the 100BASE-T1/1000BASE-T1 physical layer module is used for receiving RGMII data sent by the microcontroller module, realizing data conversion and then transmitting the RGMII data to the vehicle-mounted Ethernet interface.
The present utility model may be further configured in a preferred example to: before the 100BASE-T1/1000BASE-T1 conversion module works, a user needs to determine the working mode and the physical layer connection type of the 100BASE-T1/1000BASE-T1 physical layer chip according to the tested ECU information, namely, the physical layer module is set to work in a Master state or a Slave state through a physical layer module working mode switch;
the microcontroller can collect the input of the physical layer module working mode switch and the physical layer type switch and control the physical layer chip to switch the working mode and the type by setting the physical layer module to work at 100BASE-T1 or 1000 BASE-T1.
The present utility model may be further configured in a preferred example to: the microcontroller module is connected with a physical layer type switch and collects a physical layer type switch signal so as to set the type of the vehicle-mounted Ethernet physical layer;
the microcontroller module is connected with the physical layer working mode switch and collects the physical layer working mode switch signal so as to set the master/slave working mode of the physical layer.
The present utility model may be further configured in a preferred example to: the 100BASE-T1/1000BASE-T1 conversion module further includes a power indicator for indicating a power state.
The present utility model may be further configured in a preferred example to: the 100BASE-T1/1000BASE-T1 conversion module further comprises an Ethernet status indicator for indicating an Ethernet connection status.
The present utility model may be further configured in a preferred example to: the 100BASE-T1/1000BASE-T1 conversion module further comprises a physical layer type indicator, wherein the physical layer type indicator is used for indicating the type of the physical layer connected with the vehicle-mounted Ethernet connector.
In summary, the present utility model includes at least one of the following beneficial technical effects:
the utility model discloses a USB-to-vehicle Ethernet device, which is connected with a 100BASE-T1/1000BASE-T1 conversion module through a USB3.0 interface of a computer, the 100BASE-T1/1000BASE-T1 conversion module supplies power through USB3.0 provided by the computer, and data in the computer are converted into 100BASE-T1/1000BASE-T1 data of a pair of twisted pairs through USB3.0 differential line data in the test process, so that the communication between the computer and a vehicle-mounted electronic control unit of the 100BASE-T1/1000BASE-T1 is realized, and the function test is realized.
Drawings
Fig. 1 is a block diagram showing the overall structure of the present utility model.
FIG. 2 is a schematic diagram showing the structure of a 100BASE-T1/1000BASE-T1 conversion module according to the present utility model.
Reference numerals: 1. a computer; 2. an electronic control unit; 3. 100BASE-T1/1000BASE-T1 conversion module.
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 apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be signal-connected or electrically connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Embodiment one:
referring to fig. 1, a USB to vehicle ethernet device disclosed in the present utility model includes a computer 1, an electronic control unit 2, and a 100BASE-T1/1000BASE-T1 conversion module 3, wherein one end of the 100BASE-T1/1000BASE-T1 conversion module 3 is connected to the computer 1 through a USB3.0, and the other end is connected to the electronic control unit 2 of the 100BASE-T1/1000BASE-T1 through a vehicle ethernet connector;
the 100BASE-T1/1000BASE-T1 conversion module 3 is powered by the USB3.0 provided by the computer 1, and data in the computer 1 can be converted into 100BASE-T1/1000BASE-T1 data of a twisted pair through two pairs of differential lines of the USB3.0 in the test process.
USB3.0 two-pair differential line data is converted into 100BASE-T1/1000BASE-T1 data for one twisted pair. The 100BASE-T1/1000BASE-T1 conversion module 3 supplies power through the USB3.0 provided by the computer 1; two pairs of ultra-high-speed differential signals of USB3.0 are a transmitting differential pair and a receiving differential pair respectively; and both 100BASE-T1 and 1000BASE-T1 realize data transmission and reception through a pair of twisted pair wires.
The 100BASE-T1/1000BASE-T1 physical layer chip has a signal fusion and separation function, and can synchronously process the transmitted and received signals, namely, the simultaneous receiving and transmitting of the signals are realized;
the actual working mode of the 100BASE-T1/1000BASE-T1 conversion module 3 is as follows: the USB3.0 network cable is connected with the computer 1 and the 100BASE-T1/1000BASE-T1 conversion module 3;2. the vehicle-mounted Ethernet connector is connected with a 100BASE-T1/1000BASE-T1ECU;3. setting a physical layer type switch and a physical layer working mode switch of the 100BASE-T1/1000BASE-T1 conversion module 3; 4. observing the state of the LED lamp, and determining the normal Linkup of the 100BASE-T1/1000BASE-T1 conversion module 3 and the ECU; 5. the computer 1 software was turned on and the ECU data was tested.
In the transmitting process, the transmitting data line of the USB3.0 converts the data of the bus signal (0, 1) into a 0101 digital signal through the microcontroller module, and then the 0101 digital signal is directly converted into a-1, 0,1 100BASE-T1/1000BASE-T1 bus signal by the 100BASE-T1/1000BASE-T1 physical layer chip; the receiving process is also reversed.
The 100BASE-T1/1000BASE-T1 conversion module 3 comprises a power supply module, a microcontroller module, a USB conversion Ethernet chip, a 100BASE-T1/1000BASE-T1 physical layer module and an Ethernet connector circuit module, wherein the power supply module is electrically connected with the microcontroller module through a USB3.0 connector; the power supply module only supports one power supply mode and supplies power through USB 3.0. The standard supply voltage of USB3.0 is 5V, which supplies power to the microcontroller, the physical layer chip and the peripheral circuits.
The microcontroller module is connected with the 100BASE-T1/1000BASE-T1 physical layer module, is a core control module of the 100BASE-T1/1000BASE-T1 conversion module 3 and is used for configuring and controlling the physical layer module, monitoring the working state of the physical layer module and the type of the physical layer and indicating the working state through LEDs;
the USB conversion Ethernet chip is respectively connected with the USB3.0 connector and the 100BASE-T1/1000BASE-T1 physical layer module, and is used for receiving the Ethernet data of the computer 1 and transmitting the data to the 100BASE-T1/1000BASE-T1 physical layer module through own processing, wherein in the embodiment, the 100BASE-T1/1000BASE-T1 physical layer module is the 100BASE-T1/1000BASE-T1 physical layer chip.
The vehicle-mounted Ethernet connector is in data connection with a 100BASE-T1/1000BASE-T1 physical layer module, the 100BASE-T1/1000BASE-T1 physical layer module comprises a 100BASE-T1/1000BASE-T1 physical layer chip, a vehicle-mounted Ethernet interface and related peripheral circuits, and the 100BASE-T1/1000BASE-T1 physical layer module is used for receiving RGMII data sent by the microcontroller module, realizing data conversion and then transmitting the RGMII data to the vehicle-mounted Ethernet interface.
Before the 100BASE-T1/1000BASE-T1 conversion module 3 works, a user needs to determine the working mode and the physical layer connection type of the 100BASE-T1/1000BASE-T1 physical layer chip according to the tested ECU information, namely, the physical layer module is set to work in a Master state or a Slave state through a physical layer module working mode switch; the microcontroller can collect the input of the physical layer module working mode switch and the physical layer type switch and control the physical layer chip to switch the working mode and the type by setting the physical layer module to work at 100BASE-T1 or 1000 BASE-T1.
Specifically, the 100BASE-T1/1000BASE-T1 conversion module 3 includes a physical layer type switch, a physical layer operation mode switch, a microcontroller, a 100BASE-T1/1000BASE-T1 physical layer module, a USB3.0 conversion ethernet chip, a power indicator, a physical layer type indicator, an ethernet type indicator, a first port (USB 3.0 connector), and a second port (in-vehicle ethernet connector);
the first port is connected with the microcontroller and provides electric energy for the microcontroller through the USB 3.0;
the first port is connected with the USB conversion Ethernet chip and transmits data through USB 3.0;
the second port is in data connection with a 100BASE-T1/1000BASE-T1 physical layer module;
the microcontroller module is connected with the physical layer type switch and collects the physical layer type switch signal so as to set the type of the vehicle-mounted Ethernet physical layer;
the microcontroller module is connected with the physical layer working mode switch and collects the physical layer working mode switch signal so as to set the Master/Slave (Master/Slave) working mode of the physical layer.
The 100BASE-T1/1000BASE-T1 conversion module 3 further includes a power indicator for indicating a power supply status.
The 100BASE-T1/1000BASE-T1 conversion module 3 further comprises an ethernet state indicator for indicating the ethernet connection state.
The 100BASE-T1/1000BASE-T1 conversion module 3 further comprises a physical layer type indicator for indicating a physical layer type of the second port connection.
The implementation principle of the utility model is as follows: the utility model discloses a USB-to-vehicle Ethernet device, which is connected with a 100BASE-T1/1000BASE-T1 conversion module 3 through a USB3.0 interface of a computer 1, the 100BASE-T1/1000BASE-T1 conversion module 3 supplies power through the USB3.0 provided by the computer 1, and data in the computer 1 are converted into 100BASE-T1/1000BASE-T1 data of a pair of twisted pairs through two pairs of differential line data of the USB3.0 in the test process, so that the communication between the computer 1 and a vehicle-mounted electronic control unit 2 of the 100BASE-T1/1000BASE-T1 is realized, and the function test is realized.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The USB-to-vehicle Ethernet device comprises a computer (1) and an electronic control unit (2) and is characterized by further comprising a 100BASE-T1/1000BASE-T1 conversion module (3), wherein one end of the 100BASE-T1/1000BASE-T1 conversion module (3) is connected with the computer (1) through a USB3.0, and the other end of the 100BASE-T1/1000BASE-T1 electronic control unit (2) is connected with the 100BASE-T1/1000BASE-T1 through a vehicle-mounted Ethernet connector;
the 100BASE-T1/1000BASE-T1 conversion module (3) is powered through the USB3.0 provided by the computer (1), and data in the computer (1) can be converted into 100BASE-T1/1000BASE-T1 data of a twisted pair through two pairs of differential line data of the USB3.0 in the test process.
2. The USB to on-board ethernet device of claim 1, wherein said USB3.0 two-pair differential line data is converted to 100BASE-T1/1000BASE-T1 data for a twisted pair.
3. The USB to on-board ethernet device of claim 1, wherein the two pairs of ultra-high speed differential signals of USB3.0 are a transmit differential pair and a receive differential pair, respectively; and both 100BASE-T1 and 1000BASE-T1 realize data receiving and transmitting through a pair of twisted pair wires;
in the transmitting process, the transmitting data line of the USB3.0 converts the data of the bus signal (0, 1) into a 0101 digital signal through the microcontroller module, and then the 0101 digital signal is directly converted into a-1, 0,1 100BASE-T1/1000BASE-T1 bus signal by the 100BASE-T1/1000BASE-T1 physical layer chip; the receiving process is also reversed.
4. The USB to on-board ethernet device according to claim 1, wherein said 100BASE-T1/1000BASE-T1 conversion module (3) comprises a power supply module, a microcontroller module, a USB converted ethernet chip, a 100BASE-T1/1000BASE-T1 physical layer module, and an ethernet connector circuit module, said power supply module being electrically connected to said microcontroller module by a USB3.0 connector;
the microcontroller module is connected with the 100BASE-T1/1000BASE-T1 physical layer module and is used for configuring and controlling the physical layer module, monitoring the working state and the physical layer type of the physical layer module and indicating through an LED;
the USB conversion Ethernet chip is respectively connected with the USB3.0 connector and the 100BASE-T1/1000BASE-T1 physical layer module and is used for receiving the Ethernet data of the computer (1) and transmitting the data to the 100BASE-T1/1000BASE-T1 physical layer module through own processing;
the vehicle-mounted Ethernet connector is in data connection with the 100BASE-T1/1000BASE-T1 physical layer module, and the 100BASE-T1/1000BASE-T1 physical layer module is used for receiving RGMII data sent by the microcontroller module, realizing data conversion and then transmitting the RGMII data to the vehicle-mounted Ethernet interface.
5. The USB to vehicle ethernet device according to claim 1, wherein before the 100BASE-T1/1000BASE-T1 conversion module (3) works, a user needs to determine, according to the ECU information to be tested, a working mode and a physical layer connection type of the 100BASE-T1/1000BASE-T1 physical layer chip, that is, a physical layer module working mode switch is used to set whether the physical layer module works in a Master state or a Slave state;
the microcontroller can collect the input of the physical layer module working mode switch and the physical layer type switch and control the physical layer chip to switch the working mode and the type by setting the physical layer module to work at 100BASE-T1 or 1000 BASE-T1.
6. The device for converting USB to on-board ethernet as recited in claim 4, wherein said microcontroller module is coupled to a physical layer type switch for collecting physical layer type switch signals to thereby set a type of on-board ethernet physical layer;
the microcontroller module is connected with the physical layer working mode switch and collects the physical layer working mode switch signal so as to set the master/slave working mode of the physical layer.
7. A USB to on-board ethernet device according to claim 1, wherein said 100BASE-T1/1000BASE-T1 conversion module (3) further comprises a power indicator for indicating a power status.
8. A USB to on-board ethernet device according to claim 1, wherein said 100BASE-T1/1000BASE-T1 conversion module (3) further comprises an ethernet status indicator for indicating an ethernet connection status.
9. A USB to on-board ethernet device according to claim 1, wherein said 100BASE-T1/1000BASE-T1 conversion module (3) further comprises a physical layer type indicator for indicating the type of physical layer to which the on-board ethernet connector is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674104.1U CN220292038U (en) | 2023-06-29 | 2023-06-29 | USB changes on-vehicle ethernet equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674104.1U CN220292038U (en) | 2023-06-29 | 2023-06-29 | USB changes on-vehicle ethernet equipment |
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| Publication Number | Publication Date |
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| CN220292038U true CN220292038U (en) | 2024-01-02 |
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| CN202321674104.1U Active CN220292038U (en) | 2023-06-29 | 2023-06-29 | USB changes on-vehicle ethernet equipment |
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- 2023-06-29 CN CN202321674104.1U patent/CN220292038U/en active Active
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