Vehicle-mounted Ethernet equipment, dormancy awakening method of vehicle-mounted Ethernet equipment and vehicle

Abstract

The embodiment of the invention discloses vehicle-mounted Ethernet equipment, a dormancy awakening method of the vehicle-mounted Ethernet equipment and a vehicle. A working enabling pin of a power supply module of the vehicle-mounted Ethernet equipment is connected with an awakening enabling pin of a vehicle-mounted Ethernet transceiver, and a voltage output pin of the power supply module is connected with a first power supply pin of a core processor and a second power supply pin of the vehicle-mounted Ethernet transceiver. A power input pin of the power module is used for receiving power supply voltage; the vehicle-mounted Ethernet transceiver is connected with the core processor through a bus, an awakening input pin of the vehicle-mounted Ethernet transceiver is connected with a first end of the awakening circuit module, a dormancy power supply pin is used for receiving dormancy power supply voltage, and a signal transceiving pin is used for receiving an awakening signal or a dormancy signal; the second end of the wake-up circuit module is connected with the input pin of the core processor, and the third end is used for receiving a level signal; the problem of high power consumption in the dormant state is solved, and the power consumption of the vehicle-mounted Ethernet equipment in the dormant state is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle-mounted Ethernet technology, and in particular to a vehicle-mounted Ethernet device, a sleep and wake-up method for a vehicle-mounted Ethernet device, and a vehicle. Background Art

[0002] With the development of science and technology, the automotive industry is gradually moving towards intelligence, networking and electrification. As the degree of intelligence, networking and electrification increases, the number of on-board devices and sensors in cars is also increasing. As the number of on-board devices and sensors increases, the corresponding power consumption is also increasing, so low-power design is particularly important.

[0003] To achieve low power consumption, when a certain vehicle-mounted device (such as an air conditioner) does not need to be operated, the vehicle-mounted device can be put into sleep mode to reduce power consumption; when the vehicle-mounted device needs to be operated, it is awakened.

[0004] The existing sleep mode usually directly sends a sleep interrupt to the core processor of the corresponding vehicle-mounted device, causing the core processor to enter a sleep state. In this way, only the core processor is in a sleep state, while other devices in the vehicle-mounted device (such as power chips, transceivers or auxiliary processors, etc.) are still in a working state, causing the vehicle-mounted device as a whole to still be in a high power consumption state. Summary of the invention

[0005] The embodiments of the present application provide an in-vehicle Ethernet device, a sleep and wake-up method for the in-vehicle Ethernet device, and a vehicle, which can solve the technical problem of high power consumption of the in-vehicle Ethernet device in the sleep state and reduce the power consumption of the in-vehicle Ethernet device in the sleep state.

[0006] In a first aspect, an embodiment of the present application provides an in-vehicle Ethernet device, including: a power module, a core processor, an in-vehicle Ethernet transceiver, and a wake-up circuit module;

[0007] The working enable pin of the power module is connected to the wake-up enable pin of the vehicle Ethernet transceiver, the voltage output pin of the power module is connected to the first power pin of the core processor and the second power pin of the vehicle Ethernet transceiver, and the power input pin of the power module is used to receive the power supply voltage;

[0008] The vehicle Ethernet transceiver is connected to the core processor through a bus, the wake-up input pin of the vehicle Ethernet transceiver is connected to the first end of the wake-up circuit module, the sleep power supply pin of the vehicle Ethernet transceiver is used to receive the sleep power supply voltage, and the signal transceiver pin of the vehicle Ethernet transceiver is used to receive a wake-up signal or a sleep signal;

[0009] The second end of the wake-up circuit module is connected to the input pin of the core processor, and the third end of the wake-up circuit module is used to receive a level signal;

[0010] The wake-up circuit module is used to output a high-level signal to the core processor through the second terminal when the third terminal receives a low-level signal;

[0011] The vehicle-mounted Ethernet transceiver is used to send a sleep preparation signal to the core processor through the bus when receiving the sleep signal;

[0012] The core processor is used to perform a first processing operation when receiving a high-level signal or a sleep preparation signal, and after the first processing operation is completed, send a first notification to the vehicle Ethernet transceiver through the bus, and then enter a sleep state;

[0013] The vehicle Ethernet transceiver is also used to send a low level signal to the power module through the wake-up enable pin when receiving the first notification;

[0014] The power module is used to enter a sleep state and stop supplying power to the core processor and the vehicle Ethernet transceiver when receiving a low-level signal.

[0015] In one embodiment, the wake-up circuit module includes: a first wake-up unit and a second wake-up unit;

[0016] A first end of the first wake-up unit is connected to a wake-up input pin of the vehicle Ethernet transceiver and a first end of the second wake-up unit, a second end of the first wake-up unit is grounded, a third end of the first wake-up unit is used to receive a level signal, and a fourth end of the first wake-up unit is used to access a first power supply voltage;

[0017] The second end of the second wake-up unit is connected to the input pin of the core processor, the third end of the second wake-up unit is grounded, and the fourth end of the second wake-up unit is used to access the second power supply voltage;

[0018] The first wake-up unit is used to output a low level signal through the first end when the third end receives a high level signal; or to output a high level signal through the first end when the third end receives a low level signal;

[0019] The second awakening unit is used to output a low level signal through the second end when the first end receives a high level signal; or to output a high level signal through the second end when the first end receives a low level signal.

[0020] In one embodiment, the first wake-up unit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor and a first transistor;

[0021] The first end of the first resistor is connected to the first end of the second resistor, the first end of the first resistor is used to receive the level signal, and the second end of the first resistor is used to access the first power supply voltage;

[0022] The second end of the second resistor is connected to the first end of the third resistor, the first end of the first capacitor and the base of the first transistor;

[0023] The second end of the third resistor, the second end of the first capacitor and the emitter of the first transistor are grounded;

[0024] The collector of the first transistor is connected to the first end of the fourth resistor, the wake-up input pin of the vehicle Ethernet transceiver, and the first end of the second wake-up unit;

[0025] The second end of the fourth resistor is used to access the first power supply voltage.

[0026] In one embodiment, the second wake-up unit includes: a fifth resistor, a sixth resistor, a seventh resistor and a second triode;

[0027] A first end of the fifth resistor is connected to the collector of the first transistor, and a second end of the fifth resistor is connected to the base of the second transistor;

[0028] The emitter of the second triode is connected to the first end of the sixth resistor, and the collector of the second triode is connected to the first end of the seventh resistor and the input pin of the core processor;

[0029] The second end of the sixth resistor is used to access the second power supply voltage;

[0030] A second terminal of the seventh resistor is grounded.

[0031] In one embodiment, the power module includes: a first-level power chip and a second-level power chip;

[0032] The first enable pin of the first-stage power chip is connected to the wake-up enable pin of the vehicle Ethernet transceiver, the first output pin of the first-stage power chip is connected to the second power input pin and the second enable pin of the second-stage power chip, and the first power input pin of the first-stage power chip is used to receive the power supply voltage;

[0033] The second output pin of the second-stage power chip is connected to the first power pin of the core processor and the second power pin of the vehicle Ethernet transceiver;

[0034] The first-stage power chip is used to stop supplying power to the second-stage power chip when receiving a low-level signal.

[0035] In a second aspect, an embodiment of the present application provides a sleep waking method for an in-vehicle Ethernet device, which is used for the in-vehicle Ethernet device of the first aspect. The sleep waking method for the in-vehicle Ethernet device includes:

[0036] When the wake-up circuit module receives a low-level signal, it outputs a high-level signal to the core processor;

[0037] The core processor performs a first processing operation according to the received high-level signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through the bus, and then enters a sleep state;

[0038] The vehicle Ethernet transceiver sends a low level signal to the power module when receiving the first notification;

[0039] The power module enters a sleep state based on the received low-level signal and stops supplying power to the core processor and the vehicle Ethernet transceiver.

[0040] In one embodiment, the sleep awakening method of the vehicle Ethernet device further includes:

[0041] When the vehicle Ethernet transceiver receives the sleep signal, it sends a sleep preparation signal to the core processor via the bus;

[0042] The core processor performs a first processing operation according to the sleep preparation signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through the bus, and then enters a sleep state;

[0043] The vehicle Ethernet transceiver sends a low level signal to the power module when receiving the first notification;

[0044] The power module enters a sleep state based on the received low-level signal and stops supplying power to the core processor and the vehicle Ethernet transceiver.

[0045] In one embodiment, the sleep awakening method of the vehicle Ethernet device further includes:

[0046] When receiving a high-level signal, the wake-up circuit module outputs a low-level signal to the vehicle Ethernet transceiver;

[0047] The vehicle Ethernet transceiver sends a high-level signal to the power module based on the received low-level signal;

[0048] The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle Ethernet transceiver, so that the core processor and the vehicle Ethernet transceiver enter a working state.

[0049] In one embodiment, the sleep awakening method of the vehicle Ethernet device further includes:

[0050] When the vehicle Ethernet transceiver receives the wake-up signal, it sends a high-level signal to the power module;

[0051] The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle Ethernet transceiver, so that the core processor and the vehicle Ethernet transceiver enter a working state.

[0052] In a third aspect, an embodiment of the present application provides a vehicle, including a main control device and the vehicle Ethernet device of the first aspect;

[0053] The master control device is connected to the vehicle Ethernet device.

[0054] The embodiment of the present application sets the working enable pin of the power module to be connected with the wake-up enable pin of the vehicle Ethernet transceiver in the vehicle Ethernet device, the voltage output pin of the power module is connected with the first power pin of the core processor and the second power pin of the vehicle Ethernet transceiver, and the power input pin of the power module is used to receive the power supply voltage; the vehicle Ethernet transceiver is connected with the core processor through the bus, the wake-up input pin of the vehicle Ethernet transceiver is connected with the first end of the wake-up circuit module, the sleep power pin of the vehicle Ethernet is used to receive the sleep power supply voltage, and the signal transceiver pin of the vehicle Ethernet transceiver is used to receive the wake-up signal or the sleep signal; the second end of the wake-up circuit module is connected with the input pin of the core processor, and the third end of the wake-up circuit is used to receive the level signal. By adopting the above technical means, when the third end of the wake-up circuit module receives a low-level signal or the vehicle Ethernet transceiver receives a sleep signal, the core processor, the vehicle Ethernet transceiver and the power module all enter the sleep state. Compared with the existing vehicle Ethernet device in which only the core processor is in sleep state, the vehicle Ethernet device provided by this embodiment enters the sleep state when all devices enter the sleep state, which greatly reduces the power consumption of the vehicle Ethernet device in the sleep state. In addition, by setting up an on-board Ethernet transceiver to transmit and receive on-board data, the standards and protocols of the on-board Ethernet can achieve fast transmission and reception of large amounts of data, thereby increasing the speed of data transmission and reception. Based on the increase in the speed of data transmission and reception, the speed of entering the sleep state can be increased, thereby reducing the overall power consumption of the on-board Ethernet device. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a first structural schematic diagram of an in-vehicle Ethernet device provided in an embodiment of the present application;

[0056] Figure 2 is a second structural schematic diagram of an in-vehicle Ethernet device provided in an embodiment of the present application;

[0057] Figure 3 This is a first flow chart of a sleep and wake-up method for an in-vehicle Ethernet device provided in an embodiment of the present application;

[0058] Figure 4This is a second flow chart of a sleep and wake-up method for an in-vehicle Ethernet device provided in an embodiment of the present application;

[0059] Figure 5 is a third flow chart of a sleep waking method for an in-vehicle Ethernet device provided in an embodiment of the present application;

[0060] Figure 6 This is the fourth flow chart of a sleep and wake-up method for an in-vehicle Ethernet device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0062] With the development of science and technology, the automobile industry is gradually developing in the direction of intelligence, networking and electrification. With the increasing degree of intelligence, networking and electrification, the number of on-board devices and sensors in automobiles is also increasing. With the increase in the number of on-board devices and sensors, the corresponding power consumption is also increasing. Especially when the car is started, the corresponding startup speed and the wake-up speed of the on-board equipment are relatively slow, resulting in a poor user experience. The inventor analyzed that since there are more and more on-board devices and sensors in cars now, as the number of devices continues to increase, the data transmission and reception speed in the car will slow down, so that when the car starts, the corresponding startup speed and the wake-up of the on-board equipment are also relatively slow. At the same time, as the number of devices continues to increase, the corresponding data transmission and reception speed will slow down, and the corresponding overall power consumption will continue to increase.

[0063] To achieve low power consumption, when a vehicle-mounted device (such as an air conditioner) is not needed, the vehicle-mounted device can be put into sleep mode to reduce power consumption; when the vehicle-mounted device needs to be run, it is awakened. The existing sleep mode usually directly sends a sleep interrupt to the core processor of the corresponding vehicle-mounted device to put the core processor into sleep mode. In this way, only the core processor is in sleep mode, while other devices in the vehicle-mounted device (such as power chips, transceivers or auxiliary processors, etc.) are still in working state, so that the vehicle-mounted device as a whole is still in a high power consumption state.

[0064] Based on this, an in-vehicle Ethernet device, a sleep wake-up method for an in-vehicle Ethernet device, and a vehicle of an embodiment of the present application are provided. In the in-vehicle Ethernet device, a working enable pin of a power module is set to be connected to a wake-up enable pin of a in-vehicle Ethernet transceiver, a voltage output pin of the power module is connected to a first power pin of a core processor and a second power pin of the in-vehicle Ethernet transceiver, and a power input pin of the power module is used to receive a power supply voltage; the in-vehicle Ethernet transceiver is connected to the core processor through a bus, a wake-up input pin of the in-vehicle Ethernet transceiver is connected to a first end of a wake-up circuit module, a sleep power pin of the in-vehicle Ethernet is used to receive a sleep power supply voltage, and a signal transceiver pin of the in-vehicle Ethernet transceiver is used to receive a wake-up signal or a sleep signal; the second end of the wake-up circuit module is connected to an input pin of the core processor, and a third end of the wake-up circuit is used to receive a level signal. By adopting the above technical means, when the third end of the wake-up circuit module receives a low-level signal, the core processor, the vehicle Ethernet transceiver and the power module all enter a dormant state. Compared with the existing vehicle Ethernet device in which only the core processor is in a dormant state, all the devices of the vehicle Ethernet device provided by this embodiment enter a dormant state when in a dormant state, which greatly reduces the power consumption of the vehicle Ethernet device in a dormant state. In addition, when the vehicle Ethernet device is in a dormant state, only the vehicle Ethernet transceiver generates a certain amount of power consumption based on the dormant power supply voltage, wherein the power supply current corresponding to the dormant power supply voltage is at the milliampere level, and the corresponding power consumption is very small, thereby greatly reducing the power consumption of the vehicle Ethernet device in a dormant state, and further reducing the overall operating cost of the vehicle Ethernet device.

[0065] In addition, this embodiment sets a vehicle Ethernet transceiver in the vehicle Ethernet device to transmit and receive vehicle data, and based on the standards and protocols of the vehicle Ethernet, fast transmission and reception of large amounts of data can be achieved. In a car with a large number of vehicle devices and sensors, the vehicle Ethernet transceiver can be used to transmit and receive data, which can reduce the wake-up cycle and standby time, and can also optimize the communication protocol and the speed of data processing and reduce the transmission of redundant data, thereby reducing the power consumption caused by slow data transmission inside the car; and, by transmitting and receiving data through the vehicle Ethernet transceiver, the overall data transmission and reception speed inside the car can be improved, based on the increase in the data transmission and reception speed, the speed of entering the dormant state can be increased, based on the increase in the speed of entering the dormant state, the vehicle Ethernet device can enter the dormant state faster, further reducing the power consumption of the vehicle Ethernet device. In addition, the vehicle Ethernet transceiver can improve the overall data transmission and reception speed inside the car, based on the increase in the data transmission and reception speed, the speed of entering the wake-up state can be increased, based on the increase in the speed of entering the wake-up state, when the car is started, the corresponding startup speed and the wake-up speed of the vehicle Ethernet device will also be increased, thereby improving the user experience.

[0066] The vehicle-mounted Ethernet device provided in the embodiment of the present application is a controlled device in the vehicle, such as a vehicle-mounted air conditioner, a vehicle-mounted audio and video device, and an ECU (micro control unit). Figure 1 is a first structural diagram of a vehicle-mounted Ethernet device provided in an embodiment of the present application, referring to Figure 1, the vehicle Ethernet device 1 includes a power module 11, a vehicle Ethernet transceiver 12, a core processor 13, a wake-up circuit module 14 and a connector 15. The work enable pin EN of the power module 11 is connected to the wake-up enable pin INH of the vehicle Ethernet transceiver 12, the voltage output pin OUT of the power module 11 is connected to the first power pin IN1 of the core processor 13 and the second power pin IN2 of the vehicle Ethernet transceiver 12, and the power input pin GPIO1IN of the power module 11 is used to receive the power supply voltage (12V). Exemplarily, the power input pin GPIO1IN of the power module 11 is connected to the connector 15 to access the power supply voltage through the connector 15, and the power supply voltage is 12V. The vehicle Ethernet transceiver 12 is connected to the core processor 13 through a bus, the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 is connected to the first end of the wake-up circuit module 14, the dormant power supply pin VBAT of the vehicle Ethernet transceiver 12 is used to receive the dormant power supply voltage, and the signal transceiver pin (TRX_P / TRX_N) of the vehicle Ethernet transceiver 12 is used to receive a wake-up signal or a dormant signal. Among them, the power supply current of the dormant power supply voltage is very small, which is a milliampere level power supply current. The signal transceiver pin (TRX_P / TRX_N) of the vehicle Ethernet transceiver 12 is connected to the signal transceiver pin (TRX_P / TRX_N) of the connector 15 through a twisted pair. The connector 15 is used to connect a master control device (not shown in the figure). When the vehicle Ethernet device 1 needs to enter the working state, the master control device can send a wake-up signal to the vehicle Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15. When the vehicle Ethernet device 1 needs to enter the sleep state, the master control device can send a sleep signal to the vehicle Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15 .

[0067] When the vehicle Ethernet device 1 needs to enter a sleep state, a sleep signal can be sent to the vehicle Ethernet transceiver 12 through the main control device based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15. The vehicle Ethernet transceiver 12 is used to send a sleep preparation signal to the core processor 13 through the bus when receiving the sleep signal. The core processor 13 is used to perform a first processing operation when receiving the sleep preparation signal, and after the first processing operation is completed, send a first notification to the vehicle Ethernet transceiver 12 through the bus, and then enter a sleep state. The vehicle Ethernet transceiver 12 is also used to send a low-level signal to the working enable pin EN of the power module 11 through the wake-up enable pin INH when receiving the first notification. When the working enable pin EN of the power module 11 receives a low-level signal, it enters a sleep state and stops supplying power to the core processor 13 and the vehicle Ethernet transceiver 12.

[0068] Exemplarily, the master control device may be a vehicle-mounted controller, which sends a sleep signal or a wake-up signal to the connector 15 through a soft control method, so as to transmit the vehicle-mounted Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15 .

[0069] It should be noted that the first processing operation may be an operation for processing important processes and data. The vehicle Ethernet transceiver 12 informs the core processor 13 to perform the first processing operation through a sleep preparation signal transmitted via the bus.

[0070] The second end of the wake-up circuit module 14 is connected to the input pin GPIO1 of the core processor 13, and the third end of the wake-up circuit module 14 is used to receive a level signal, and the level signal includes a high level signal and a low level signal. The third end of the wake-up circuit module 14 is connected to the ignition pin IGN of the connector 15, and the connector 15 is used to connect the main control device. When the main control device generates a level signal (high level signal or low level signal) and transmits it to the ignition pin IGN of the connector 15, the ignition pin IGN transmits the level signal to the third end of the wake-up circuit module 14. Exemplarily, when the vehicle Ethernet device 1 needs to enter the working state, a high level signal can be transmitted to the ignition pin IGN of the connector 15 by the main control device; when the vehicle Ethernet device 1 needs to enter the sleep state, a low level signal can be transmitted to the ignition pin IGN of the connector 15 by the main control device. For example, the main control device connected to the ignition pin IGN of the connector 15 can be a hardware device, such as a key or a button.

[0071] When the vehicle Ethernet device 1 needs to enter a dormant state, a low-level signal can be transmitted to the ignition pin IGN of the connector 15 through the main control device, and the third end of the wake-up circuit module 14 receives the low-level signal. The wake-up circuit module 14 is used to output a high-level signal to the input pin GPIO1 of the core processor 13 at the second end and output a high-level signal to the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 at the first end when the third end receives a low-level signal. The core processor 13 is used to perform a first processing operation when receiving a high-level signal, and after the first processing operation is completed, send a first notification to the vehicle Ethernet transceiver 12 through the bus, and then enter a dormant state. The vehicle Ethernet transceiver 12 is also used to send a low-level signal to the working enable pin EN of the power module 11 through the wake-up enable pin INH when receiving the first notification. When the working enable pin EN of the power module 11 receives a low-level signal, it enters a dormant state and stops supplying power to the core processor 13 and the vehicle Ethernet transceiver 12.

[0072] It should be noted that the first processing operation may be an operation of processing important processes and data. The wake-up circuit module 14 informs the core processor 13 to perform the first processing operation through a low-level signal.

[0073] When the vehicle Ethernet device 1 needs to enter the working state, the main control device can send a wake-up signal to the vehicle Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15. When the vehicle Ethernet transceiver 12 receives the wake-up signal, the wake-up enable pin INH sends a high-level signal to the power module 11. When the working enable pin EN of the power module 11 receives a high-level signal, it enters the wake-up state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0074] When the vehicle Ethernet device 1 needs to enter the working state, a high-level signal can be transmitted to the ignition pin IGN of the connector 15 through the main control device, and the third end of the wake-up circuit module 14 receives the high-level signal. When the third end of the wake-up circuit module 14 receives a high-level signal, the first end outputs a low-level signal to the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12, and the second end outputs a low-level signal to the input pin GPIO1 of the core processor 13. When the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 receives a low-level signal, the wake-up enable pin INH sends a high-level signal to the power module 11. When the working enable pin EN of the power module 11 receives a high-level signal, it enters the wake-up state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0075] As described above, when the third end of the wake-up circuit module 14 receives a low-level signal or the vehicle Ethernet transceiver 12 receives a sleep signal, the core processor 13, the vehicle Ethernet transceiver 12 and the power module 11 all enter a sleep state. Compared with the existing vehicle Ethernet device in which only the core processor 13 is in sleep state, the vehicle Ethernet device 1 provided in this embodiment has all devices in sleep state when in sleep state, which greatly reduces the power consumption of the vehicle Ethernet device 1 in sleep state. In addition, when the third end of the wake-up circuit module 14 receives a high-level signal or the vehicle Ethernet transceiver 12 receives a wake-up signal, the power module 11 supplies power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the vehicle Ethernet device 1 enters a working state and realizes a wake-up function. In addition, by setting the vehicle Ethernet transceiver 12 to transmit and receive vehicle data, fast transmission and reception of large amounts of data can be achieved based on the standards and protocols of the vehicle Ethernet, thereby improving the speed of data transmission and reception. Based on the improvement of the speed of data transmission and reception, the speed of entering the sleep state can be improved, thereby reducing the overall power consumption of the vehicle Ethernet device 1.

[0076] Figure 2 is a second structural diagram of a vehicle Ethernet device provided in an embodiment of the present application, referring to Figure 2 The wake-up circuit module 14 includes: a first wake-up unit 141 and a second wake-up unit 142. The first end of the first wake-up unit 141 is connected to the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 and the first end of the second wake-up unit 142, the second end of the first wake-up unit 141 is grounded, the third end of the first wake-up unit 141 is used to receive a level signal, and the fourth end of the first wake-up unit 141 is used to access the first power supply voltage (12V). The second end of the second wake-up unit 142 is connected to the input pin GPIO1 of the core processor 13, the third end of the second wake-up unit 142 is grounded, and the fourth end of the second wake-up unit 142 is used to access the second power supply voltage (3.3V). The first wake-up unit 141 is used to output a low-level signal to the second wake-up unit 142 through the first end when the third end receives a high-level signal; or to output a high-level signal to the second wake-up unit 142 through the first end when the third end receives a low-level signal. The second wake-up unit 142 is used to output a high level signal to the input pin GPIO1 of the core processor 13 through the second end when the first end receives a high level signal; or to output a low level signal to the input pin GPIO1 of the core processor 13 through the second end when the first end receives a low level signal.

[0077] The first wake-up unit 141 includes: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1 and a first transistor Q1. The first end of the first resistor R1 is connected to the first end of the second resistor R2, the first end of the first resistor R1 is used to receive the level signal (transmitted by the ignition pin IGN), and the second end of the first resistor R1 is used to access the first power supply voltage (12V). The second end of the second resistor R2 is connected to the first end of the third resistor R3, the first end of the first capacitor C1 and the base (B) of the first transistor Q1. The second end of the third resistor R3 and the second end of the first capacitor C1 and the emitter (E) of the first transistor Q1 are grounded. The collector (C) of the first transistor Q1 is connected to the first end of the fourth resistor R4, the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 and the first end of the second wake-up unit 142. The second end of the fourth resistor R4 is used to access the first power supply voltage (12V).

[0078] Exemplarily, when a high-level signal is received at the first end of the first resistor R1, i.e., an ignition signal, the collector (C) of the first transistor Q1 is pulled low, i.e., the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 receives a low-level signal. When the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 receives a low-level signal, the wake-up enable pin INH sends a high-level signal to the working enable pin EN of the power module 11. When the working enable pin EN of the power module 11 receives a high-level signal, it enters the wake-up state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0079] Exemplarily, the first power supply voltage is 12V, the resistance of the first resistor R1 is 1MΩ, the resistance of the second resistor R2 is 1KΩ, the resistance of the third resistor R3 is 10KΩ, the capacitance of the first capacitor C1 is 0.1μF, and the resistance of the fourth resistor R4 is 1MΩ.

[0080] The second wake-up unit 142 includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7 and a second transistor Q2. The first end of the fifth resistor R5 is connected to the collector (C) of the first transistor Q1, and the second end of the fifth resistor R5 is connected to the base (B) of the second transistor Q2. The emitter (E) of the second transistor Q2 is connected to the first end of the sixth resistor R6, and the collector (C) of the second transistor Q2 is connected to the first end of the seventh resistor R7 and the input pin GPIO1 of the core processor 13. The second end of the sixth resistor R6 is used to access the second power supply voltage (3.3V); the second end of the seventh resistor R7 is grounded.

[0081] Exemplarily, when a high-level signal is received at the first end of the first resistor R1, i.e., an ignition signal, the collector (C) of the first transistor Q1 is pulled low, i.e., the first end of the fifth resistor R5 receives a low-level signal, so the collector (C) of the second transistor Q2 is pulled low, and thus the input pin GPIO1 of the core processor 13 receives a low-level signal. When a high-level signal is received at the first end of the first resistor R1, i.e., an ignition signal, the collector (C) of the first transistor Q1 is pulled low, i.e., the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 receives a low-level signal. When the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12 receives a low-level signal, the wake-up enable pin INH sends a high-level signal to the power module 11. When the working enable pin EN of the power module 11 receives a high-level signal, it enters the wake-up state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0082] When the first end of the first resistor R1 receives a low-level signal, the collector (C) of the first transistor Q1 is pulled high, that is, the first end of the fifth resistor R5 receives a high-level signal, so the collector (C) of the second transistor Q2 is pulled high, and thus the input pin GPIO1 of the core processor 13 receives a high-level signal. The core processor 13 is used to perform a first processing operation when receiving a high-level signal, and after the first processing operation is completed, send a first notification to the vehicle Ethernet transceiver 12 through the bus, and then enter a sleep state. The vehicle Ethernet transceiver 12 is also used to send a low-level signal to the working enable pin EN of the power module 11 through the wake-up enable pin INH when receiving the first notification. When the working enable pin EN of the power module 11 receives a low-level signal, it enters a sleep state and stops supplying power to the core processor 13 and the vehicle Ethernet transceiver 12.

[0083] Exemplarily, the resistance value of the fifth resistor R5 is 10KΩ, the resistance value of the sixth resistor R6 is 1KΩ, the resistance value of the seventh resistor R7 is 10KΩ, and the second power supply voltage is 3.3V.

[0084] The power module 11 includes: a first-level power chip 111 and a second-level power chip 112. The first enable pin EN1 of the first-level power chip 111 is connected to the wake-up enable pin INH of the vehicle Ethernet transceiver 12, the first output pin OUT1 of the first-level power chip 111 is connected to the second power input pin IN4 and the second enable pin EN2 of the second-level power chip 112, and the first power input pin IN3 of the first-level power chip 111 is used to receive the power supply voltage (12V). The second output pin OUT2 of the second-level power chip 112 is connected to the first power pin IN1 of the core processor 13 and the second power pin IN2 of the vehicle Ethernet transceiver 12. The first-level power chip 111 is used to stop supplying power to the second-level power chip 112 when the first enable pin EN1 receives a low-level signal; and to supply power to the second-level power chip 112 when the first enable pin EN1 receives a high-level signal. Exemplarily, the power input pin GPIO1IN of the power module 11 is connected to the connector 15 to access the power supply voltage through the connector 15, and the power supply voltage is 12V. When the first enable pin EN1 of the first power chip 111 receives a high level signal, its first output pin OUT1 outputs a 5V voltage to the second power input pin IN4 of the second power chip 112, and outputs a high level signal to the second enable pin EN2. The second power chip 112 is used to transmit current to the first power pin IN1 of the core processor 13 and the second power pin IN2 of the vehicle Ethernet transceiver 12 when the second enable pin EN2 receives a high level signal, that is, to supply power to the core processor 13 and the vehicle Ethernet transceiver 12. When the first enable pin EN1 of the first power chip 111 receives a low level signal, the first power chip 111 stops supplying power to the second power chip 112, so the lower-level core processor 13 and the vehicle Ethernet transceiver 12 cannot receive current and enter a dormant state.

[0085] It should be noted that the first-level power chip 111 and the second-level power chip 112 may include multiple power chips. The specific number of the power chips can be set according to actual conditions and is not limited in this embodiment.

[0086] It should be noted that the power module 11 may include multiple power chips, and the specific number of levels can be set according to actual conditions, which is not limited in this embodiment. The specific number of power chips set in each level of power chips can also be set according to actual conditions, which is not limited in this embodiment.

[0087] Through the vehicle Ethernet device 1 provided in this embodiment, low power consumption is achieved in the sleep state. Only the sleep power supply pin VBAT of the vehicle Ethernet transceiver 12 generates a certain amount of power consumption based on receiving the sleep power supply voltage, wherein the power supply current corresponding to the sleep power supply voltage is at the milliampere level, and the corresponding power consumption is very small, thereby greatly reducing the power consumption of the vehicle Ethernet device 1 in the sleep state, and further reducing the overall operating cost of the vehicle Ethernet device 1. In addition, the circuit design is simple, and no additional auxiliary processor is required, so the cost is low. In the vehicle system, for each controlled device, the structure of the vehicle Ethernet device 1 provided in this embodiment can be set as much as possible to achieve platformization, thereby achieving low power consumption of the entire vehicle system.

[0088] As described above, this embodiment can realize fast transmission and reception of large amounts of data by setting a vehicle Ethernet transceiver in the vehicle Ethernet device to transmit and receive vehicle data, based on the standards and protocols of the vehicle Ethernet. In vehicle communications, nodes (i.e., vehicle Ethernet devices) need to be awakened before transmitting and receiving data. When the data transmission and reception speed increases, the corresponding nodes (i.e., vehicle Ethernet devices) can complete data transmission and reception faster, thereby shortening the wake-up cycle and standby time, helping to reduce the number of times the node switches between the sleep state and the normal working state, thereby reducing power consumption.

[0089] As described above, this embodiment arranges a vehicle-mounted Ethernet transceiver in the vehicle-mounted Ethernet device to transmit and receive vehicle-mounted data, and implements efficient modulation and coding methods based on the standards and protocols of the vehicle-mounted Ethernet, thereby reducing the energy required for data transmission, thereby enabling fast transmission and reception of large amounts of data; in addition, high-speed data transmission based on the vehicle-mounted Ethernet transceiver can reduce the number of data packet transmissions and waiting time, thereby reducing power consumption during the communication process.

[0090] As described above, this embodiment arranges a vehicle-mounted Ethernet transceiver in the vehicle-mounted Ethernet device to transmit and receive vehicle-mounted data. Based on the standards and protocols of the vehicle-mounted Ethernet, fast transmission and reception of large amounts of data can be achieved. When the data transmission and reception speed is increased, the communication bandwidth can be effectively utilized, the transmission of redundant data can be reduced, and it helps to reduce energy consumption during data transmission.

[0091] In addition, the vehicle-mounted Ethernet transceiver can improve the overall data transmission and reception speed inside the car. Based on the increase in the data transmission and reception speed, the speed of entering the wake-up state is further improved. Based on the increase in the speed of entering the wake-up state, when the car is started, the corresponding startup speed and the wake-up speed of the vehicle-mounted Ethernet device are also improved, thereby solving the problem of relatively slow corresponding startup speed and wake-up of the vehicle-mounted device when the car is started in the prior art. The vehicle-mounted Ethernet device provided in this embodiment improves the startup speed when the car is started and the wake-up speed of the vehicle-mounted Ethernet device, thereby improving the user experience.

[0092] Therefore, the specific structural setting of the vehicle-mounted Ethernet device provided in this embodiment can adapt to the trend of the increasing number of vehicle-mounted devices and sensors in the car. When the number of vehicle-mounted devices and sensors continues to increase, it can realize high-speed reception and transmission of large amounts of data. Based on the improvement of the speed of internal data reception and transmission, the car startup, the sleep and wake-up of the vehicle-mounted Ethernet device, and the response speed of all vehicle-mounted devices are greatly improved, thereby greatly improving the overall user experience.

[0093] Figure 3 This is a first flow chart of a sleep wakeup method for an in-vehicle Ethernet device provided in an embodiment of the present application, referring to Figure 3 The sleep and wake-up method of the vehicle Ethernet device is used for the aforementioned vehicle Ethernet device, and the sleep and wake-up method of the vehicle Ethernet device specifically includes:

[0094] S101. When receiving a low-level signal, the wake-up circuit module outputs a high-level signal to the core processor.

[0095] Reference Figure 2 When the vehicle Ethernet device 1 needs to enter the sleep state, a low-level signal can be transmitted to the ignition pin IGN of the connector 15 through the main control device, and the third end of the wake-up circuit module 14 receives the low-level signal. When the wake-up circuit module 14 receives the low-level signal at the third end, the second end outputs a high-level signal to the input pin GPIO1 of the core processor 13 and the first end outputs a high-level signal to the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12.

[0096] S102: The core processor performs a first processing operation according to the received high-level signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through the bus, and then enters a sleep state.

[0097] Reference Figure 2 , when the core processor 13 receives a high-level signal at its input pin GPIO1, it performs a first processing operation, and after the first processing operation is completed, it sends a first notification to the vehicle Ethernet transceiver 12 through the bus, and then enters a sleep state. Among them, the first processing operation can be an operation for processing important processes and data. By processing important processes and data through the first processing operation, it is avoided that all processing is suddenly stopped to cause failures, thereby improving the operating reliability of the vehicle Ethernet device 1 and improving the user experience. The vehicle Ethernet transceiver 12 itself (core processor 13) is informed through the first notification that the first processing operation has been completed and it has entered sleep mode, that is, the vehicle Ethernet transceiver 12 is informed that it can enter a sleep mode.

[0098] S103: When receiving the first notification, the vehicle-mounted Ethernet transceiver sends a low-level signal to the power module.

[0099] Reference Figure 2 When the vehicle Ethernet transceiver 12 receives the first notification, it sends a low level signal to the working enable pin EN of the power module 11 through the wake-up enable pin INH to make the power module 11 enter the sleep state.

[0100] S104: The power module enters a sleep state according to the received low-level signal, and stops supplying power to the core processor and the vehicle Ethernet transceiver.

[0101] Reference Figure 2 When the working enable pin EN receives a low level signal, the power module 11 enters a sleep state and stops supplying power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter a sleep state, that is, the vehicle Ethernet device 1 as a whole enters a sleep state.

[0102] As described above, by waking up the low-level signal received at the third end of the circuit module, the core processor processes important processes and data and then enters a dormant state, thereby avoiding a sudden stop of all processing and causing failures, thereby improving the operational reliability of the vehicle Ethernet device and improving the user experience. In addition, after the vehicle Ethernet device enters the dormant state, only the vehicle Ethernet transceiver generates a certain amount of power consumption based on the dormant power supply voltage, wherein the power supply current corresponding to the dormant power supply voltage is at the milliampere level, and the corresponding power consumption is very small, thereby greatly reducing the power consumption of the vehicle Ethernet device in the dormant state, thereby reducing the overall operating cost of the vehicle Ethernet device.

[0103] Figure 4 This is a second flow chart of a sleep wakeup method for an in-vehicle Ethernet device provided in an embodiment of the present application, referring to Figure 4 The sleep and wake-up method of the vehicle Ethernet device is used for the aforementioned vehicle Ethernet device, and the sleep and wake-up method of the vehicle Ethernet device specifically includes:

[0104] S201. When receiving a sleep signal, the vehicle-mounted Ethernet transceiver sends a sleep preparation signal to a core processor via a bus.

[0105] Reference Figure 2When the vehicle Ethernet device 1 needs to enter the sleep state, the master device can send a sleep signal to the vehicle Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15. When the vehicle Ethernet transceiver 12 receives the sleep signal at the signal transceiver pin (TRX_P / TRX_N), it sends a sleep preparation signal to the core processor 13 through the bus to inform the core processor 13 that it needs to enter the sleep state.

[0106] S202: The core processor performs a first processing operation according to the sleep preparation signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through the bus, and then enters a sleep state.

[0107] Reference Figure 2 , when the core processor 13 receives the sleep preparation signal, it performs a first processing operation, and after the first processing operation is completed, it sends a first notification to the vehicle Ethernet transceiver 12 through the bus, and then enters a sleep state. Among them, the first processing operation can be an operation for processing important processes and data. By processing important processes and data through the first processing operation, it is avoided that all processing is suddenly stopped to cause failures, thereby improving the operating reliability of the vehicle Ethernet device 1 and improving the user experience. The first notification informs the vehicle Ethernet transceiver 12 itself (core processor 13) that the first processing operation has been completed and entered sleep mode, that is, it informs the vehicle Ethernet transceiver 12 that it can enter a sleep mode.

[0108] S203: When receiving the first notification, the vehicle-mounted Ethernet transceiver sends a low-level signal to the power module.

[0109] Reference Figure 2 When the vehicle Ethernet transceiver 12 receives the first notification, it sends a low level signal to the working enable pin EN of the power module 11 through the wake-up enable pin INH to make the power module 11 enter the sleep state.

[0110] S204: The power module enters a sleep state according to the received low-level signal, and stops supplying power to the core processor and the vehicle Ethernet transceiver.

[0111] Reference Figure 2 When the working enable pin EN receives a low level signal, the power module 11 enters a sleep state and stops supplying power to the core processor 13 and the vehicle Ethernet transceiver 12, so that the core processor 13 and the vehicle Ethernet transceiver 12 enter a sleep state, that is, the vehicle Ethernet device 1 as a whole enters a sleep state.

[0112] As mentioned above, the core processor enters the sleep state after processing important processes and data through the signal transceiver pin of the vehicle Ethernet transceiver after receiving the sleep signal, avoiding the sudden stop of all processing and causing failures, thereby improving the operating reliability of the vehicle Ethernet device and improving the user experience. In addition, after the vehicle Ethernet device enters the sleep state, only the vehicle Ethernet transceiver generates a certain amount of power consumption based on the sleep power supply voltage, where the power supply current corresponding to the sleep power supply voltage is at the milliampere level, and the corresponding power consumption is very small, thereby greatly reducing the power consumption of the vehicle Ethernet device in the sleep state, thereby reducing the overall operating cost of the vehicle Ethernet device.

[0113] Figure 5 This is a third flow chart of a sleep wakeup method for an in-vehicle Ethernet device provided in an embodiment of the present application, referring to Figure 5 The sleep and wake-up method of the vehicle Ethernet device is used for the aforementioned vehicle Ethernet device, and the sleep and wake-up method of the vehicle Ethernet device specifically includes:

[0114] S301. When receiving a high-level signal, the wake-up circuit module outputs a low-level signal to the vehicle Ethernet transceiver.

[0115] Reference Figure 2 When the vehicle Ethernet device 1 needs to enter the working state, a high-level signal can be transmitted to the ignition pin IGN of the connector 15 through the main control device, and the third end of the wake-up circuit module 14 receives the high-level signal. When the wake-up circuit module 14 receives the high-level signal at the third end, the first end outputs a low-level signal to the wake-up input pin GPIO1WAKE_IN of the vehicle Ethernet transceiver 12, and the second end outputs a low-level signal to the input pin GPIO1 of the core processor 13.

[0116] S302. The vehicle-mounted Ethernet transceiver sends a high-level signal to the power module according to the received low-level signal.

[0117] Reference Figure 2 When the vehicle Ethernet transceiver 12 receives a low-level signal at its wake-up input pin GPIO1WAKE_IN, the wake-up enable pin INH sends a high-level signal to the power module 11, so that the power module 11 enters the wake-up state to resume power supply to the core processor 13 and the vehicle Ethernet transceiver 12.

[0118] S303. The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle Ethernet transceiver, so that the core processor and the vehicle Ethernet transceiver enter a working state.

[0119] Reference Figure 2When the working enable pin EN of the power module 11 receives a high level signal, it enters the awake state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12 so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0120] As described above, based on the low-power sleep mode realized by the vehicle Ethernet device, the high-level signal received at the third end of the wake-up circuit module can be used to restore the power supply of the core processor and the vehicle Ethernet transceiver by the power module to wake up the vehicle Ethernet device and put the vehicle Ethernet device into working state.

[0121] Figure 6 This is a fourth flow chart of a sleep wakeup method for an in-vehicle Ethernet device provided in an embodiment of the present application, referring to Figure 6 The sleep and wake-up method of the vehicle Ethernet device is used for the aforementioned vehicle Ethernet device, and the sleep and wake-up method of the vehicle Ethernet device specifically includes:

[0122] S401. When receiving a wake-up signal, the vehicle Ethernet transceiver sends a high-level signal to the power module.

[0123] Reference Figure 2 When the vehicle Ethernet device 1 needs to enter the working state, the main control device can send a wake-up signal to the vehicle Ethernet transceiver 12 based on the signal transceiver pin (TRX_P / TRX_N) of the connector 15. When the vehicle Ethernet transceiver 12 receives the wake-up signal at the signal transceiver pin (TRX_P / TRX_N), the wake-up enable pin INH sends a high-level signal to the power module 11, so that the power module 11 enters the wake-up state and supplies power to the lower-level devices.

[0124] S402. The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle Ethernet transceiver, so that the core processor and the vehicle Ethernet transceiver enter a working state.

[0125] Reference Figure 2 When the working enable pin EN of the power module 11 receives a high level signal, it enters the awake state and supplies power to the core processor 13 and the vehicle Ethernet transceiver 12 so that the core processor 13 and the vehicle Ethernet transceiver 12 enter the working state.

[0126] As described above, on the basis of realizing the low-power sleep mode of the vehicle Ethernet device, the wake-up signal received by the signal transceiver pin of the vehicle Ethernet transceiver can be used to restore the power supply of the power module to the core processor and the vehicle Ethernet transceiver, so as to wake up the vehicle Ethernet device and put the vehicle Ethernet device into working state.

[0127] As described above, by setting an in-vehicle Ethernet transceiver in the in-vehicle Ethernet device to transmit and receive in-vehicle data, fast transmission and reception of large amounts of data can be achieved based on the standards and protocols of the in-vehicle Ethernet, which can improve the overall data transmission and reception speed inside the car. Based on the improvement of the data transmission and reception speed, the speed of entering the sleep state can be increased. Based on the improvement of the speed of entering the sleep state, the in-vehicle Ethernet device can enter the sleep state faster, further reducing the power consumption of the in-vehicle Ethernet device. In addition, the in-vehicle Ethernet transceiver can improve the overall data transmission and reception speed inside the car. Based on the improvement of the data transmission and reception speed, the speed of entering the wake-up state can be increased. Based on the improvement of the speed of entering the wake-up state, when the car is started, the corresponding startup speed and the wake-up speed of the in-vehicle Ethernet device will also be increased, thereby improving the user experience.

[0128] Based on the above embodiment, the embodiment of the present application further provides a vehicle, which includes a main control device and the above-mentioned vehicle Ethernet device. The main control device is connected to the vehicle Ethernet device, and the main control device can be connected to the vehicle Ethernet device through a connector.

[0129] The vehicle provided in the embodiment of the present application and the aforementioned in-vehicle Ethernet device have corresponding beneficial effects.

[0130] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the protection scope of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A vehicle-mounted Ethernet device, characterized in that: include: Power module, core processor, vehicle Ethernet transceiver and wake-up circuit module; The working enable pin of the power module is connected to the wake-up enable pin of the vehicle Ethernet transceiver, the voltage output pin of the power module is connected to the first power pin of the core processor and the second power pin of the vehicle Ethernet transceiver, and the power input pin of the power module is used to receive the power supply voltage; The vehicle-mounted Ethernet transceiver is connected to the core processor via a bus, the wake-up input pin of the vehicle-mounted Ethernet transceiver is connected to the first end of the wake-up circuit module, the sleep power supply pin of the vehicle-mounted Ethernet transceiver is used to receive the sleep power supply voltage, and the signal transceiver pin of the vehicle-mounted Ethernet transceiver is used to receive a wake-up signal or a sleep signal; The second end of the wake-up circuit module is connected to the input pin of the core processor, and the third end of the wake-up circuit module is used to receive a level signal; The wake-up circuit module is used to output a high level signal to the core processor through the second end when the third end receives a low level signal; The vehicle-mounted Ethernet transceiver is used to send a sleep preparation signal to the core processor via a bus when receiving the sleep signal; The core processor is used to perform a first processing operation when receiving a high-level signal or receiving the sleep preparation signal, and after the first processing operation is completed, send a first notification to the vehicle Ethernet transceiver through a bus, and then enter a sleep state; The in-vehicle Ethernet transceiver is further configured to send a low level signal to the power module via the wake-up enable pin when receiving the first notification; The power module is used to enter a dormant state and stop supplying power to the core processor and the vehicle-mounted Ethernet transceiver when receiving a low-level signal.

2. The vehicle-mounted Ethernet device according to claim 1, characterized in that: The wake-up circuit module includes: a first wake-up unit and a second wake-up unit; A first end of the first wake-up unit is connected to a wake-up input pin of the vehicle Ethernet transceiver and a first end of the second wake-up unit, a second end of the first wake-up unit is grounded, a third end of the first wake-up unit is used to receive a level signal, and a fourth end of the first wake-up unit is used to access a first power supply voltage; The second end of the second wake-up unit is connected to the input pin of the core processor, the third end of the second wake-up unit is grounded, and the fourth end of the second wake-up unit is used to access the second power supply voltage; The first wake-up unit is used to output a low level signal through the first end when the third end receives a high level signal; or to output a high level signal through the first end when the third end receives a low level signal; The second wake-up unit is used to output a low level signal through the second end when the first end receives a high level signal; or to output a high level signal through the second end when the first end receives a low level signal.

3. The vehicle-mounted Ethernet device according to claim 2, characterized in that: The first wake-up unit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor and a first transistor; The first end of the first resistor is connected to the first end of the second resistor, the first end of the first resistor is used to receive a level signal, and the second end of the first resistor is used to access a first power supply voltage; The second end of the second resistor is connected to the first end of the third resistor, the first end of the first capacitor and the base of the first transistor; The second end of the third resistor, the second end of the first capacitor and the emitter of the first transistor are grounded; The collector of the first transistor is connected to the first end of the fourth resistor, the wake-up input pin of the vehicle Ethernet transceiver, and the first end of the second wake-up unit; The second end of the fourth resistor is used to access the first power supply voltage.

4. The vehicle-mounted Ethernet device according to claim 3, characterized in that: The second wake-up unit includes: a fifth resistor, a sixth resistor, a seventh resistor and a second triode; A first end of the fifth resistor is connected to the collector of the first transistor, and a second end of the fifth resistor is connected to the base of the second transistor; The emitter of the second transistor is connected to the first end of the sixth resistor, and the collector of the second transistor is connected to the first end of the seventh resistor and the input pin of the core processor; The second end of the sixth resistor is used to access the second power supply voltage; A second end of the seventh resistor is grounded.

5. The vehicle-mounted Ethernet device according to claim 1, characterized in that: The power module includes: a first-level power chip and a second-level power chip; The first enable pin of the first-stage power chip is connected to the wake-up enable pin of the vehicle Ethernet transceiver, the first output pin of the first-stage power chip is connected to the second power input pin and the second enable pin of the second-stage power chip, and the first power input pin of the first-stage power chip is used to receive a power supply voltage; The second output pin of the second-stage power chip is connected to the first power pin of the core processor and the second power pin of the vehicle Ethernet transceiver; The first-level power chip is used to stop supplying power to the second-level power chip when receiving a low-level signal.

6. A sleep awakening method for an in-vehicle Ethernet device, characterized in that: For the vehicle Ethernet device according to any one of claims 1 to 5, the method comprises: When the wake-up circuit module receives a low-level signal, it outputs a high-level signal to the core processor; The core processor performs a first processing operation according to the received high-level signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through a bus, and then enters a sleep state; The in-vehicle Ethernet transceiver sends a low level signal to the power module when receiving the first notification; The power module enters a dormant state according to the received low-level signal, and stops supplying power to the core processor and the vehicle-mounted Ethernet transceiver.

7. The method according to claim 6, characterized in that The method further comprises: When the vehicle-mounted Ethernet transceiver receives the sleep signal, it sends a sleep preparation signal to the core processor via the bus; The core processor performs a first processing operation according to the sleep preparation signal, and after the first processing operation is completed, sends a first notification to the vehicle Ethernet transceiver through a bus, and then enters a sleep state; The in-vehicle Ethernet transceiver sends a low level signal to the power module when receiving the first notification; The power module enters a dormant state according to the received low-level signal, and stops supplying power to the core processor and the vehicle-mounted Ethernet transceiver.

8. The method according to claim 6, characterized in that The method further comprises: When receiving a high-level signal, the wake-up circuit module outputs a low-level signal to the vehicle-mounted Ethernet transceiver; The vehicle-mounted Ethernet transceiver sends a high-level signal to the power module according to the received low-level signal; The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle-mounted Ethernet transceiver, so that the core processor and the vehicle-mounted Ethernet transceiver enter a working state.

9. The method according to claim 6, characterized in that The method further comprises: When receiving the wake-up signal, the vehicle-mounted Ethernet transceiver sends a high-level signal to the power module; The power module enters a wake-up state according to the received high-level signal, and supplies power to the core processor and the vehicle-mounted Ethernet transceiver, so that the core processor and the vehicle-mounted Ethernet transceiver enter a working state.

10. A vehicle, characterized in that: It comprises a main control device and the vehicle Ethernet device according to any one of claims 1 to 5; The main control device is connected to the vehicle-mounted Ethernet device.

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