具体实施方式

下面结合附图和实施例对本实用新型作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本实用新型，而非对本实用新型的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本实用新型相关的部分而非全部结构。

本实用新型提供了一种车载千兆以太网口转换装置100。图1为本实用新型实施例提供的一种车载千兆以太网口转换装置100的结构示意图，参照图1，车载千兆以太网口转换装置100，包括：USB控制模块101、至少一个物理层接口收发模块102和以太网交换模块103，USB控制模块101与第一数据接口104 连接，USB控制模块101用于将第一数据接口104输入的数据转换为第一通讯协议；物理层接口收发模块102与第二数据接口105连接，物理层接口收发模块102用于将第二数据接口105输入的数据转换为第二通讯协议；以太网交换模块103与USB控制模块101和物理层接口收发模块102连接，以太网交换模块103用于将USB控制模块101的第一通讯协议和物理层接口收发模块102的第二通讯协议转换为USB控制模块101和物理层接口收发模块102能识别的中间虚拟表示。

具体地，USB控制模块101可以将第一数据接口104输入的数据转换为第一通讯协议并输入以太网交换模块103，并可以将以太网交换模块103输出的符合第一通讯协议的数据转换为USB协议然后传输至第一数据接口104输出，第一数据接口104为USB接口，可以连接屏幕和仪表盘等车载多媒体设备。物理层接口收发模块102可以将第二数据接口105输入的数据转换为第二通讯协议并输入以太网交换模块103，并可以将以太网交换模块103输出的符合第二通讯协议的数据转换为千兆以太网标准然后传输至第二数据接口105输出，物理层接口收发模块102可以实现数据链路层到端口物理层之间的转换和解码，第二数据接口105可以为车载千兆以太网接口，第二数据接口105可以连接车载的传感器。以太网交换模块103可以将第一通讯协议的信号转换为中间虚拟表示，然后将中间虚拟表示转换为第二通讯协议的信号；或者以太网交换模块 103可以将第二通讯协议的信号转换为中间虚拟表示，然后将中间虚拟表示转换为第一通讯协议的信号，从而实现USB控制模块101和物理层接口收发模块 102之间的双向数据传输，中间虚拟表示可以为数据转换的中间形态，例如数据表格或者矩阵的形式，在此不作任何限定。

示例性地，车载温度传感器可以与第二数据接口105连接，仪表盘与第一数据接口104连接。车载温度传感器将检测到的关于发动机温度的模拟信号传输至物理层接口收发模块102，物理层接口收发模块102将模拟信号进行解码转换为第二通讯协议的数字信号，并传输至以太网交换模块103。以太网交换模块103将第二通讯协议的数字信号转换为中间虚拟表示形式，然后转换为第一通讯协议发送至USB控制模块101。USB控制模块101再将符合第一通讯协议的数据转换为USB协议，经第一数据接口104传输至仪表盘进行显示。

本实施例提供的车载千兆以太网口转换装置，设置有USB控制模块、至少一个物理层接口收发模块和以太网交换模块，USB控制模块可以将第一数据接口输入的数据转换为第一通讯协议，物理层接口收发模块可以将第二数据接口输入的数据转换为第二通讯协议，以太网交换模块可以将信号转换为USB控制模块和物理层接口收发模块均可以识别的中间虚拟表示形式，实现了第一接口与第二接口之间的数据转换，扩展了车载数据接口，提高了汽车的接口多样性。

可选地，图2为本实用新型实施例提供的另一种车载千兆以太网口转换装置100的结构示意图，参照图2，USB控制模块101包括USB控制电路201、PCIe 接口202和USB3.0接口203；USB控制电路201分别与PCIe接口202和USB3.0 接口203连接；PCIe接口202与以太网交换模块103连接，USB3.0接口203与第一数据接口104连接，USB控制模块101用于转换并双向传输PCIe接口202 和USB3.0接口203输入或输出的数据。物理层接口收发模块102包括SGMII接口205、第一1000BASE-T1接口206和转换电路204；SGMII接口205与以太网交换模块103连接，第一1000BASE-T1接口206与第二数据接口105连接，转换电路204用于转换并双向传输SGMII接口205和第一1000BASE-T1接口206 输入或输出的数据。

具体地，USB控制电路201可以实现PCIe接口202和USB3.0接口203的双向转换和数据传输。PCIe接口202与以太网交换模块103的对应接口连接，可以输出或输入PCIe协议的信号。USB3.0接口203可以与车载影音设备连接，输入或者输出USB3.0协议的信号。转换电路204可以实现SGMII接口205和第一1000BASE-T1接口206之间的双向转换和数据传输。SGMII接口205可以与以太网交换模块103的对应接口连接，可以输出或输入SGMII协议的信号。第一1000BASE-T1接口206可以通过第二数据接口105与多种车载传感器连接，可以传输对车载传感器的控制信号或者车载传感器采集到的模拟信号。以太网交换模块103可以实现PCIe协议和SGMII协议之间的双向转换和数据传输，进而实现了USB3.0接口203和第一1000BASE-T1接口206之间的转换和数据传输。

示例性地，第一数据接口104可以连接汽车仪表盘，第二数据接口105可以连接油量传感器。在汽车正常行驶的过程中，油量传感器时刻采集油量信息并依次通过第二数据接口105和第一1000BASE-T1接口206传输至转换电路204，转换电路204将信号转换为SGMII协议并通过SGMII接口205传输至以太网交换模块103，以太网交换模块103将信号进行转换之后传输至PCIe接口202， USB控制电路201把PCIe协议的信号转换为USB3.0协议的信号然后经USB3.0 接口203和第一数据接口104，传输至汽车仪表盘进行油量显示，车载千兆以太网口转换装置100扩展了车载数据接口，提高了汽车的接口多样性。

可选地，图3为本实用新型实施例提供的又一种车载千兆以太网口转换装置100的结构示意图，参照图3，车载千兆以太网口转换装置100还包括：第三数据接口301和光模块302，光模块302分别与第三数据接口301和以太网交换模块103连接，光模块302用于将第三数据接口301输入的数据转换为第三通讯协议；以太网交换模块103还用于将光模块302的第三通讯协议转换为 USB控制模块101和物理层接口收发模块102能识别的中间虚拟表示；并将USB 控制模块101的第一通讯协议和物理层接口收发模块102的第二通讯协议转换为光模块302能识别的中间虚拟表示。

具体地，光模块302包括光电转换电路303、SFP接口305和SerDes接口 304，光电转换电路303分别与SFP接口305和SerDes接口304连接，光电转换电路303用于转换并双向传输SerDes接口304的电信号和SFP接口305的光信号。SerDes接口304与以太网交换模块103连接，可以输出或者接收SerDes 协议的信号。SFP接口305与第三数据接口301连接，由于光模块302的带宽高，SFP接口305可以通过第三数据接口301与车载雷达等数据量较大的传感装置连接，实现大量数据的接口转换和双向数据传输，提高车载设备的大量数据的接口转换和双向传输，提高了车载千兆以太网口转换装置100的数据传输效率。

可选地，图4为本实用新型实施例提供的又一种车载千兆以太网口转换装置100的结构示意图，参照图4，车载千兆以太网口转换装置100还包括：第四数据接口401和转换模块402，转换模块402与第四数据接口401和以太网交换模块103连接，转换模块402用于将第四数据接口401输入的数据转换为第四通讯协议；以太网交换模块103还用于将转换模块402的第四通讯协议转换为USB控制模块101、物理层接口收发模块102以及光模块302能识别的中间虚拟表示；并将USB控制模块101的第一通讯协议、物理层接口收发模块102 的第二通讯协议以及光模块302的第三通讯协议转换为转换模块402能识别的中间虚拟表示。

具体地，转换模块402包括转换器403、第二1000Base-T1接口404和RJ45 接口405，转换器403分别与第二1000Base-T1接口404和RJ45接口405连接；第二1000Base-T1接口404与以太网交换模块103连接，RJ45接口405与第四数据接口401连接,可以通过第四数据接口401与调试计算机连接；转换器403 用于对车载以太网和标准以太网的物理层进行转换，转换器403可以转换并双向传输第二1000Base-T1接口404的信号和RJ45接口405的信号，实现对车载设备的网络调试和性能测试，提高了车载千兆以太网口转换装置100的可靠性。

可选地，图5为本实用新型实施例提供的又一种车载千兆以太网口转换装置100的结构示意图，参照图5，第一数据接口104与影音设备或仪表盘连接；第二数据接口105与车载探测器连接；第三数据接口301与车载网联终端连接；第四数据接口401与测试计算机连接；以太网交换模块103与上位机501连接，以太网交换模块103还用于根据上位机501的控制指令控制以太网交换模块103 的数据传输路径。

具体地，以太网交换模块103为SWITCH芯片；USB控制模块101为型号为 UPD7202的USB主控芯片；物理层接口收发模块102为型号为88Q2221的千兆以太网交换机芯片；转换模块402为T1-TX转换器，物理层接口收发模块102 的数量为2。

示例性地，在汽车出厂之前需要对车载以太网进行调试时，在调试的过程中，测试人员可以将测试计算机与第四数据接口401连接，然后由上位机501 发出控制指令控制以太网交换模块103的数据传输路径，将以太网交换模块103 的其他各个接口输入的信号均传输至转换模块402进而经第四数据接口401，传输至测试计算机。测试架算计还可以发出各种信号以测试仪表盘、测速探测器、油量探测器和车载网联终端的实际工作状态，以验证车载设备是否可以正常工作。在车辆正常使用的过程中，如果需要将车速和油量显示在仪表盘上，则上位机501发出控制指令，以太网交换模块103则将物理层接口收发模块102 发出的信号经转换发送至USB控制模块101，然后USB控制模块101将PCIe协议转换为USB3.0的协议并经第一数据接口104传输至仪表盘显示。如果需要将车速和油量信号发送至手机终端上，则上位机501发出控制指令，以太网交换模块103则将物理层接口收发模块102发出的信号经转换发送至光模块302，光模块302将SerDes协议的信号转换为SFP信号，并经第三数据接口301发送至车载网联终端，车载网联终端可以利用无线传输的方式将油量信号和车速信号发送至手机终端上，使得用户可以在手机上时刻记录汽车的行驶状态。

本实施例提供的车载千兆以太网口转换装置，利用SWITCH芯片分别与USB 主控芯片、千兆以太网交换机芯片、T1-TX转换模块和光模块实现多种接口的转换和数据传输，在调试阶段避免了转接板的使用，实现了车载以太网中 1000BASE-T1分别与1000BASE-TX、USB3.0和光模块等接口的互相转换，减小了调试工作的工作量，提高了汽车设备的丰富程度。

可选的，本实用新型实施例还提供了一种汽车。该汽车包括前述任意实施例提出的车载千兆以太网口转换装置100。

本实施例提供的车载千兆以太网口转换装置和汽车，设置有USB控制模块、至少一个物理层接口收发模块和以太网交换模块，USB控制模块可以将第一数据接口输入的数据转换为第一通讯协议，物理层接口收发模块可以将第二数据接口输入的数据转换为第二通讯协议，以太网交换模块可以将信号转换为USB 控制模块和物理层接口收发模块均可以识别的中间虚拟表示形式，实现了第一接口与第二接口之间的数据转换，扩展了车载数据接口，提高了汽车的接口多样性。

注意，上述仅为本实用新型的较佳实施例及所运用技术原理。本领域技术人员会理解，本实用新型不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整、结合和替代而不会脱离本实用新型的保护范围。因此，虽然通过以上实施例对本实用新型进行了较为详细的说明，但是本实用新型不仅仅限于以上实施例，在不脱离本实用新型构思的情况下，还可以包括更多其他等效实施例，而本实用新型的范围由所附的权利要求范围决定。

Specific embodiments

The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It will be appreciated that the specific embodiments described herein are only used to explain the present invention and not to qualify the present invention. It should also be noted that, in order to facilitate the description, only some but not all of the structure associated with the present invention is shown in the drawings.

The utility model provides an on-board Gigabit Ethernet port conversion device 100. FIG 1 is a schematic structural diagram of an automotive Gigabit Ethernet port conversion device 100 provided in the present invention embodiment, with reference to FIG. 1, the vehicle Gigabit Ethernet port conversion device 100, comprising: USB control module 101, at least one physical layer interface transceiver module 102 and Ethernet switching module 103, USB control module 101 and the first data interface 104 connected, USB control module 101 for converting the data input of the first data interface 104 into a first communication protocol The physical layer interface transceiver module 102 is connected to the second data interface 105, the physical layer interface transceiver module 102 is used to convert the data input of the second data interface 105 into a second communication protocol; Ethernet switching module 103 and usb control module 101 and the physical layer interface transceiver module 102 are connected, Ethernet switching module 103 for the USB control module 101 of the first communication protocol and the physical layer interface transceiver module 102 of the second communication protocol is converted to the USB control module 101 and the physical layer interface transceiver module 102 can identify the intermediate virtual representation.

Specifically, the USB control module 101 may convert the data input of the first data interface 104 into a first communication protocol and input Ethernet switching module 103, and the Ethernet switching module 103 output of the data in accordance with the first communication protocol is converted to a USB protocol and then transmitted to the first data interface 104 output, the first data interface 104 is a USB interface, which can be connected to the screen and dashboard and other vehicle multimedia devices. Physical layer interface transceiver module 102 may be the second data interface 105 input data into a second communication protocol and input Ethernet switching module 103, and the Ethernet switching module 103 output of the data in line with the second communication protocol converted to gigabit Ethernet standard and then transmitted to the second data interface 105 output, the physical layer interface transceiver module 102 can achieve data link layer to port physical layer conversion and decoding, the second data interface 105 may be an on-board Gigabit Ethernet interface, The second data interface 105 may be connected to the on-board sensor. Ethernet switching module 103 may convert the signal of the first communication protocol into an intermediate virtual representation, and then convert the intermediate virtual representation into a signal of the second communication protocol; or the Ethernet switching module 103 may convert the signal of the second communication protocol into an intermediate virtual representation, and then convert the intermediate virtual representation into a signal of the first communication protocol, thereby realizing two-way data transmission between the USB control module 101 and the physical layer interface transceiver module 102, the intermediate virtual representation may be an intermediate form of data conversion, For example, the form of a data table or matrix is not qualified here.

Exemplary, the vehicle temperature sensor may be connected to the second data interface 105, the dashboard is connected to the first data interface 104. The vehicle temperature sensor transmits the detected analog signal about the engine temperature to the physical layer interface transceiver module 102, the physical layer interface transceiver module 102 decodes the analog signal into a digital signal of the second communication protocol, and transmits it to the Ethernet switching module 103. Ethernet switching module 103 converts the digital signal of the second communication protocol into an intermediate virtual representation, and then converts to the first communication protocol is transmitted to the USB control module 101. THE USB control module 101 then converts the data in accordance with the first communication protocol into a USB protocol, and transmits it to the dashboard via the first data interface 104 for display.

The vehicle gigabit Ethernet port conversion device provided in the present embodiment, provided with a USB control module, at least one physical layer interface transceiver module and an Ethernet switching module, the USB control module may convert the data input from the first data interface into a first communication protocol, the physical layer interface transceiver module can convert the data input from the second data interface into a second communication protocol, the Ethernet switching module may convert the signal into an intermediate virtual representation that the USB control module and the physical layer interface transceiver module can recognize, It realizes the data conversion between the first interface and the second interface, expands the on-board data interface, and improves the interface diversity of the car.

Alternatively, FIG. 2 provides a schematic structural diagram of another vehicle gigabit Ethernet port conversion device 100 for the present invention embodiment, with reference to FIG. 2, the USB control module 101 includes a USB control circuit 201, a PCIe interface 202 and a USB3.0 interface 203; a USB control circuit 201 is connected to the PCIe interface 202 and a USB3.0 interface 203, respectively; the PCIe interface 202 is connected to the Ethernet switching module 103, USB3.0 interface 203 is connected to the first data interface 104, usb control module 101 for converting and bidirectional transmission of PCIe interface 202 and USB3.0 interface 203 input or output data. Physical layer interface transceiver module 102 includes SGMII interface 205, the first 1000BASE-T1 interface 206 and a conversion circuit 204; SGMII interface 205 is connected to the Ethernet switching module 103, the first 1000BASE-T1 interface 206 and the second data interface 105 is connected, the conversion circuit 204 for converting and bidirectional transmission of SGMII interface 205 and a first 1000BASE-T1 interface 206 input or output data.

Specifically, the USB control circuit 201 may implement a bidirectional conversion and data transfer of the PCIe interface 202 and USB3.0 interface 203. PCIe interface 202 is connected to the corresponding interface of the Ethernet switching module 103, may output or input signals of the PCIe protocol. USB3.0 interface 203 may be connected to the car audio-visual device, input or output USB3.0 protocol signal. Conversion circuit 204 may implement bidirectional conversion and data transmission between the SGMII interface 205 and the first 1000BASE-T1 interface 206. SGMII interface 205 may be connected to the corresponding interface of the Ethernet switching module 103, may output or input signals of the SGMII protocol. The first 1000BASE-T1 interface 206 may be connected to a variety of automotive sensors through the second data interface 105, the control signal of the vehicle sensor or the analog signal collected by the vehicle sensor may be transmitted. Ethernet switching module 103 may realize bidirectional conversion and data transmission between the PCIe protocol and the SGMII protocol, thereby realizing the conversion and data transmission between the USB3.0 interface 203 and the first 1000BASE-T1 interface 206.

Exemplary, the first data interface 104 may be connected to the automotive dashboard, the second data interface 105 may be connected to the oil level sensor. In the process of normal driving of the car, the oil sensor collects the oil amount information at any time and transmits the signal to the conversion circuit 204 through the second data interface 105 and the first 1000BASE-T1 interface 206 in turn, the conversion circuit 204 converts the signal to the SGMII protocol and transmits it to the Ethernet switching module 103 through the SGMII interface 205, the Ethernet switching module 103 converts the signal and transmits it to the PCIe interface 202, USB control circuit 201 converts the signal of the PCIe protocol into a signal of the USB3.0 protocol and then transmits it to the automotive dashboard via usb3.0 interface 203 and the first data interface 104, the on-board gigabit Ethernet port conversion device 100 expands the vehicle data interface, improving the diversity of the car interface.

Alternatively, FIG. 3 is a structural schematic diagram of another vehicle gigabit Ethernet port conversion device 100 provided in the present invention embodiment, with reference to FIG. 3, the vehicle gigabit Ethernet port conversion device 100 further comprises: a third data interface 301 and an optical module 302, optical module 302 are connected to the third data interface 301 and an Ethernet switching module 103, optical module 302 for converting the data input of the third data interface 301 into a third communication protocol Ethernet switching module 103 is also used to convert the third communication protocol of the optical module 302 into a USB control module 101 and a physical layer interface transceiver module 102 can identify the intermediate virtual representation; and the USB control module 101 of the first communication protocol and the physical layer interface transceiver module 102 of the second communication protocol is converted into an intermediate virtual representation of the optical module 302 can be recognized.

Specifically, the optical module 302 includes a photoelectric conversion circuit 303, an SFP interface 305 and a SerDes interface 304, the photoelectric conversion circuit 303 is connected to the SFP interface 305 and the SerDes interface 304, respectively, the photoelectric conversion circuit 303 is used to convert and bidirectional transmit the electrical signal of the SerDes interface 304 and the optical signal of the SFP interface 305. SerDes interface 304 is connected to the Ethernet switching module 103, may output or receive signals of the SerDes protocol. SFP interface 305 and the third data interface 301 connection, due to the high bandwidth of the optical module 302, SFP interface 305 can be connected with the third data interface 301 and the vehicle radar and other large amount of data sensor device connection, to achieve a large number of data interface conversion and two-way data transmission, improve a large number of data interface conversion and two-way transmission of vehicle equipment, improve the vehicle Gigabit Ethernet port conversion device 100 data transmission efficiency.

Alternatively, FIG. 4 provides a structural schematic diagram of another vehicle gigabit Ethernet port conversion device 100 for the present invention embodiment, referring to FIG. 4, the vehicle gigabit Ethernet port conversion device 100 further comprises: a fourth data interface 401 and a conversion module 402, the conversion module 402 and the fourth data interface 401 and the Ethernet switching module 103 are connected, the conversion module 402 is used to convert the data input of the fourth data interface 401 into a fourth communication protocol Ethernet switching module 103 is also used to convert the fourth communication protocol of the conversion module 402 into a USB control module 101, a physical layer interface transceiver module 102 and an intermediate virtual representation of the optical module 302 can be recognized; the usb control module 101 of the first communication protocol, the second communication protocol of the physical layer interface transceiver module 102 and the third communication protocol of the optical module 302 can be converted into an intermediate virtual representation that the conversion module 402 can recognize.

Specifically, the conversion module 402 includes a converter 403, a second 1000Base-T1 interface 404 and RJ45 interface 405, converter 403 are connected to the second 1000Base-T1 interface 404 and RJ45 interface 405, respectively; the second 1000Base-T1 interface 404 is connected to the Ethernet switching module 103, RJ45 interface 405 is connected to the fourth data interface 401, which can be connected to the debugging computer through the fourth data interface 401 Converter 403 is used to convert the physical layer of vehicle Ethernet and standard Ethernet, converter 403 can convert and bidirectional transmission of the signal of the second 1000Base-T1 interface 404 and RJ45 interface 405, to achieve network debugging and performance testing of the vehicle equipment, improve the reliability of the vehicle Gigabit Ethernet port conversion device 100.

Alternatively, FIG. 5 is a schematic structural diagram of another vehicle-mounted Gigabit Ethernet port conversion device 100 provided in the present invention embodiment, with reference to FIG. 5, the first data interface 104 is connected to an audio-visual device or dashboard; the second data interface 105 is connected to the vehicle-mounted detector; the third data interface 301 is connected to the vehicle network terminal; the fourth data interface 401 is connected to the test computer; the Ethernet switching module 103 is connected to the host computer 501, Ethernet switching module 103 is also used to control the data transmission path of the Ethernet switching module 103 according to the control instructions of the host computer 501.

Specifically, the Ethernet switching module 103 is a SWITCH chip; usb control module 101 is a USB main control chip of model UPD7202; the physical layer interface transceiver module 102 is a gigabit Ethernet switch chip of model 88Q2221; the conversion module 402 is a T1-TX converter, the number of physical layer interface transceiver modules 102 is 2.

For example, when the car needs to debug the vehicle Ethernet before leaving the factory, in the process of debugging, the tester can connect the test computer with the fourth data interface 401, and then the host computer 501 issues a control command to control the data transmission path of the Ethernet switching module 103, the Ethernet switching module 103 Other interface input signals are transmitted to the conversion module 402 and then through the fourth data interface 401, transmitted to the test computer. The test bench calculation can also send various signals to test the actual working status of the dashboard, speed detector, oil detector and on-board network terminal to verify whether the on-board equipment can work properly. In the process of normal use of the vehicle, if it is necessary to display the speed and oil amount on the dashboard, the host computer 501 issues a control command, the Ethernet switching module 103 transmits the signal sent by the physical layer interface transceiver module 102 is transmitted to the USB control module 101 through conversion, and then the USB control module 101 converts the PCIe protocol to the protocol of USB3.0 and transmits to the dashboard display via the first data interface 104. If it is necessary to send the speed and oil signal to the mobile phone terminal, the host computer 501 issues a control command, the Ethernet switching module 103 will transmit the signal sent by the physical layer interface transceiver module 102 to the optical module 302 through conversion, the optical module 302 converts the signal of the SerDes protocol into an SFP signal, and is transmitted to the vehicle network terminal through the third data interface 301, and the vehicle network terminal can use the wireless transmission method to send the oil signal and the speed signal to the mobile phone terminal, This enables users to record the driving status of the car at all times on the mobile phone.

The vehicle gigabit Ethernet port conversion device provided in the present embodiment, the use of SWITCH chip and USB main control chip, Gigabit Ethernet switch chip, T1-TX conversion module and optical module to achieve a variety of interface conversion and data transmission, in the debugging stage to avoid the use of the adapter board, to achieve the vehicle Ethernet 1000BASE-T1 and 1000BASE-TX, respectively, The conversion of interfaces such as USB3.0 and optical modules reduces the workload of debugging work and improves the richness of automotive equipment.

Alternatively, the present invention embodiment further provides an automobile. The car includes any of the above embodiments proposed in the vehicle gigabit Ethernet port conversion device 100.

The vehicle gigabit Ethernet port conversion device and the car provided in the present embodiment, provided with a USB control module, at least one physical layer interface transceiver module and an Ethernet switching module, the USB control module may convert the data input of the first data interface into a first communication protocol, the physical layer interface transceiver module may convert the data input of the second data interface into a second communication protocol, the Ethernet switching module may convert the signal into a USB control module and a physical layer interface transceiver module can be identified in the intermediate virtual representation , the data conversion between the first interface and the second interface is realized, the on-board data interface is expanded, and the interface diversity of the car is improved.

Note that the above is only a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, for those skilled in the art can be various obvious changes, readjustments, combinations and substitutions without departing from the scope of protection of the present invention. Thus, although the present utility model is described in more detail by the above embodiments, the present utility model is not limited to the above embodiments, without departing from the present invention concept, it may also include more other equivalent embodiments, and the scope of the present utility model is determined by the scope of the appended claims.