Vehicle-mounted communication device, system and vehicle

Abstract

The utility model discloses a vehicle-mounted communication device and system and a vehicle, and relates to the technical field of vehicle-mounted communication. The device comprises a microprocessor, a power supply chip and a wake-up source management module, the power supply chip is used for stopping supplying power to the microprocessor when the vehicle-mounted communication device is in a dormant state and supplying power to the microprocessor in response to the enable signal; and the wake-up source management module is used for sending an enable signal to the power supply chip based on the received target wake-up signal and waking up the microprocessor based on the target wake-up signal. According to the invention, the technical problems of poor battery life and short service life caused by high standby power consumption of a vehicle-mounted communication device circuit in the prior art are solved.

Description

Technical Field

[0001] This application relates to the field of vehicle communication, and more specifically, to a vehicle communication device, system and vehicle. Background Technology

[0002] In-vehicle communication devices are a crucial component of intelligent connected vehicle systems. In related technologies, the sleep mode scheme for in-vehicle communication devices employs a combination of a microprocessor and a communication module. The microprocessor handles power control and external device interfaces, while the communication module handles network communication. When the in-vehicle communication device is in standby mode, the microprocessor remains powered, and both the device and the microprocessor are set to a low-power mode. When the device needs to be woken up, the microprocessor is activated to restore power to external devices, allowing the entire device to enter normal operation. However, in these technologies, the microprocessor remains powered, and combined with the static power consumption of peripheral devices and power chips, the sleep current of the in-vehicle communication device circuitry remains relatively high. This may reduce battery range and shorten battery life.

[0003] As can be seen from the above, reducing the dormant current of in-vehicle communication device circuits, thereby improving battery range and shortening battery life, has become one of the important technical problems in related fields. Currently, no effective solution has been proposed to address these issues. Utility Model Content

[0004] This application provides an in-vehicle communication device, system, and vehicle to at least solve the technical problem in the related art that the high standby power consumption of the in-vehicle communication device circuit leads to poor battery life and short service life.

[0005] According to one aspect of the embodiments of this application, an in-vehicle communication device is provided, including: a microprocessor, a power chip, and a wake-up source management module; the power chip is used to stop supplying power to the microprocessor when the in-vehicle communication device is in a sleep state, and to supply power to the microprocessor in response to an enable signal; the wake-up source management module is used to send an enable signal to the power chip based on a received target wake-up signal, and to wake up the microprocessor based on the target wake-up signal.

[0006] In some embodiments, the wake-up source management module is used to respond to various wake-up signals sent to the microprocessor in the vehicle communication link, wherein the various wake-up signals are interrupt signals corresponding to multiple wake-up sources.

[0007] In some embodiments, the multiple wake-up sources include: a communication bus wake-up source, a clock wake-up source, a button wake-up source, an ignition wake-up source, and a communication module wake-up source.

[0008] In some embodiments, the target wake-up signal is at least one of a plurality of wake-up signals.

[0009] In some embodiments, multiple output terminals of various wake-up signals in the wake-up source management module are respectively connected to the enable pin of the power chip via diodes.

[0010] In some embodiments, the microprocessor is configured to connect to the enable pin of the power chip via a general-purpose input / output signal after the power chip supplies power to the microprocessor in response to an enable signal, such that the enable signal of the power chip is kept high.

[0011] In some embodiments, the wake-up source management module includes a target transceiver corresponding to the target wake-up signal. The target transceiver can be configured with a low-power sleep mode, and in the low-power sleep mode, the target transceiver supports input restriction functionality.

[0012] In some embodiments, the target transceiver is configured to respond to a wake-up message sent by a target wake-up source when the vehicle communication device is in a sleep state, and generate an interrupt signal corresponding to the input restriction function as a target wake-up signal.

[0013] According to another aspect of the embodiments of this application, a vehicle communication system is also provided, including: a vehicle terminal box and a sleep management device, wherein the vehicle terminal box is configured with any of the above-mentioned vehicle communication devices, and the sleep management device is used to exchange communication data with a target device and determine whether the vehicle communication device is in a sleep state based on the communication data.

[0014] According to another aspect of the embodiments of this application, a vehicle is also provided, which is equipped with any of the above-described vehicle communication devices or vehicle communication systems.

[0015] In this embodiment, a microprocessor, a power chip, and a wake-up source management module are included. The power chip is used to stop supplying power to the microprocessor when the vehicle communication device is in a sleep state, and to supply power to the microprocessor in response to an enable signal. The wake-up source management module is used to send an enable signal to the power chip based on a received target wake-up signal, and to wake up the microprocessor based on the target wake-up signal.

[0016] It is noteworthy that this application embodiment introduces a wake-up source management module. Utilizing the collaborative work of the microprocessor, power chip, and wake-up source management module, when the vehicle communication device is in sleep mode, the power supply to the microprocessor is turned off, enabling more intelligent management of the vehicle communication device's sleep and wake-up states. Therefore, this application embodiment achieves the goal of reducing the standby power consumption of the vehicle communication device, thereby improving battery life and extending battery lifespan. This solves the technical problem in related technologies where high standby power consumption in vehicle communication device circuits leads to poor battery life and short battery lifespan. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and provide related descriptions of those embodiments to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a structural block diagram of a vehicle-mounted communication device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of an optional structure for implementing a vehicle-mounted communication device according to an embodiment of this application.

[0020] The markings in the above attached diagram are as follows:

[0021] 11. Microprocessor; 12. Power supply chip; 13. Wake-up source management module;

[0022] 20. Microprocessor; 21. Power chip; 22. Communication bus wake-up source; 23. Clock wake-up source; 24. Button wake-up source; 25. Ignition wake-up source. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments only include a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] The operating environment of the above embodiments is described exemplarily. The vehicle communication device provided in this application embodiment can be used to provide vehicle intelligent network communication functions for preset application scenarios. The preset application scenarios may include the following scenarios in the field of passenger cars: remote vehicle monitoring scenario, remote vehicle diagnostics scenario, vehicle scheduled charging management scenario, emergency service request scenario, vehicle status query scenario, remote vehicle software update scenario, and vehicle location tracking scenario. In addition, the preset application scenarios may also include, but are not limited to: vehicle communication scenarios for intelligent driving trucks or unmanned trucks in the logistics and transportation field, and vehicle communication scenarios for autonomous agricultural vehicles in the agricultural machinery field.

[0025] Under the above operating environment, the embodiments of this application provide the following: Figure 1 The vehicle-mounted communication device shown, Figure 1 This is a schematic diagram of the structure of a vehicle-mounted communication device according to an embodiment of this application, as shown below. Figure 1As shown, the device includes: a microprocessor 11, a power chip 12, and a wake-up source management module 13; the power chip 12 is used to stop supplying power to the microprocessor 11 when the vehicle communication device is in a sleep state, and to supply power to the microprocessor 11 in response to an enable signal; the wake-up source management module 13 is used to send an enable signal to the power chip based on a received target wake-up signal, and to wake up the microprocessor 11 based on the target wake-up signal.

[0026] The aforementioned target wake-up signal can be a specific signal that can wake up the vehicle communication device when it is in a sleep state.

[0027] It is readily understood that, through the aforementioned vehicle communication device, in this embodiment of the application, when the vehicle communication device is in sleep mode, the power supply to the microprocessor is completely disconnected through the coordinated operation of the microprocessor, power chip, and wake-up source management module. Simultaneously, it ensures that the microprocessor can be normally woken up by the target wake-up signal while the vehicle communication device is in sleep mode. This reduces the sleep current of the vehicle communication device circuit while ensuring the response speed of the vehicle communication device upon wake-up. Therefore, this embodiment of the application can reduce the power consumption of the vehicle communication device, improve battery life, and extend battery lifespan.

[0028] As an optional implementation, the wake-up source management module 13 is used to respond to various wake-up signals sent to the microprocessor 11 in the vehicle communication link. These various wake-up signals are interrupt signals corresponding to multiple wake-up sources.

[0029] The specific implementation of the wake-up source management module in response to various wake-up signals issued to the microprocessor in the vehicle communication link can be as follows: when a situation occurs in the vehicle communication link that requires microprocessor intervention, these wake-up sources will issue interrupt signals, and the wake-up source management module will identify these signals and confirm whether they belong to various wake-up signals.

[0030] It is easy to understand that, through the above-mentioned vehicle communication device, in this embodiment of the application, it is possible to ensure that the vehicle communication device maintains its responsiveness to the wake-up source in the sleep state, while optimizing battery usage efficiency and extending battery life by reducing sleep current.

[0031] As an optional implementation, the multiple wake-up sources include: a communication bus wake-up source, a clock wake-up source, a button wake-up source, an ignition wake-up source, and a communication module wake-up source.

[0032] For example, a user or vehicle management platform can wake up the vehicle communication device by sending a communication bus wake-up source signal to query the vehicle's real-time status (such as the status of vehicle doors and windows, fuel level, battery level, etc.) and provide the user with real-time vehicle information. Users can schedule charging of the vehicle at a specific time, taking advantage of off-peak electricity prices or user preferences for vehicle usage time periods. Before the scheduled time arrives, the clock in the vehicle system generates a clock wake-up source to wake up the vehicle communication device, enabling it to communicate with the charging system and start the charging process without manual operation by the user. When the vehicle is parked or in a dormant state, the user or backend system can send a command through the mobile communication network to generate a communication module wake-up source to wake up the vehicle communication device.

[0033] It is easy to understand that, through the above-mentioned vehicle-mounted communication device, the embodiments of this application consider multiple wake-up sources, which can ensure that the vehicle-mounted communication device can respond normally to multiple wake-up sources in the sleep state, thereby enhancing the adaptability and robustness of the device.

[0034] As an optional implementation, the target wake-up signal is at least one of a variety of wake-up signals.

[0035] It is easy to understand that, through the above-mentioned vehicle communication device, in this embodiment of the application, the vehicle communication device can selectively respond to specific wake-up signals according to actual needs, avoiding unnecessary wake-ups and reducing the power consumption of the device circuit.

[0036] As an optional implementation, multiple output terminals of various wake-up signals in the wake-up source management module 13 are connected to the enable pin of the power chip 12 via diodes.

[0037] It is easy to understand that, through the above-mentioned vehicle communication device, in this embodiment of the application, the vehicle communication device can prevent reverse power flow, protect the safety of the microprocessor and power chip, and ensure the stability and reliability of the device.

[0038] As an optional implementation, the microprocessor 11 is used to connect to the enable pin of the power chip 12 via a general-purpose input / output signal after the power chip 12 supplies power to the microprocessor 11 in response to the enable signal, so that the enable signal of the power chip 12 is kept at a high level.

[0039] It is easy to understand that, through the above-mentioned vehicle communication device, the power consumption of the vehicle communication device in the sleep state is effectively reduced in this embodiment of the application, while ensuring that the microprocessor can be quickly and accurately woke up and start working when multiple wake-up sources trigger wake-up signals.

[0040] As an optional implementation, the wake-up source management module 13 includes a target transceiver corresponding to the target wake-up signal. The target transceiver can be configured with a low-power sleep mode, and in the low-power sleep mode, the target transceiver supports input restriction function.

[0041] It is easy to understand that, through the above-mentioned vehicle communication device, in this embodiment of the application, the transceiver can significantly reduce power consumption when not in operation, while maintaining the ability to wake up specific signals in a timely manner, effectively extending the standby time of the vehicle communication device.

[0042] As an optional implementation, the target transceiver is used to respond to a wake-up message sent by the target wake-up source when the vehicle communication device is in a sleep state, and generate an interrupt signal corresponding to the input restriction function as a target wake-up signal.

[0043] It is easy to understand that, through the above-mentioned vehicle communication device, in this embodiment of the application, the vehicle communication device can receive and process specific communication data in a sleep state, thereby reducing the power consumption of the vehicle communication device and improving the intelligence of the vehicle communication device.

[0044] In an exemplary application scenario, such as Figure 2 As shown, in this application scenario, the communication bus wake-up source can be a Controller Area Network (CAN) wake-up source, and the clock wake-up source can be a Real-Time Clock (RTC) wake-up source. In this scenario, multiple outputs of the multiple wake-up source signals are connected to the enable pin of the power supply chip via diodes, and these multiple outputs are then connected to the microprocessor. The microprocessor is then connected to the enable pin of the power supply chip via general-purpose input / output (GPIO) signals. When the vehicle communication device receives an interrupt signal from one of the multiple wake-up sources, it wakes up the power supply to the microprocessor, thus putting the microprocessor into normal operation. The microprocessor keeps the enable signal of the power supply chip high via GPIO signals, ensuring the vehicle communication device maintains normal power supply. Simultaneously, the microprocessor can distinguish the wake-up source type based on the different interrupt signals emitted by the wake-up sources, thereby completing the corresponding functions of the device.

[0045] If the wake-up source is a CAN wake-up source, the CAN transceiver generates an interrupt signal corresponding to the input restriction function. After receiving the interrupt signal, the microprocessor connects to the enable pin of the power chip through a general-purpose input / output signal, so that the enable signal of the power chip is kept at a high level, turning on the microprocessor power, thereby putting the vehicle communication device into normal working condition.

[0046] If the wake-up source is an RTC wake-up source, the RTC chip's built-in clock wake-up function is used. When the current event reaches the target time, the RTC chip outputs the corresponding clock interrupt signal. After receiving the interrupt signal, the microprocessor connects to the enable pin of the power chip through a general-purpose input / output signal, so that the enable signal of the power chip is kept at a high level, turning on the microprocessor power, thereby putting the vehicle communication device into normal working condition.

[0047] If the wake-up source is a button wake-up source, that is, when the user or maintenance personnel manually wake up the vehicle communication device through input devices such as physical buttons or touch screens (e.g., pressing the emergency service call button or the button to start remote vehicle diagnostics), a corresponding button interrupt signal will be generated according to the button action. The microprocessor recognizes and confirms the validity of the interrupt signal. When the interrupt signal meets the preset wake-up conditions, the microprocessor connects to the enable pin of the power chip through a general-purpose input / output signal, so that the enable signal of the power chip is kept at a high level, turning on the microprocessor power, thereby putting the vehicle communication device into normal working condition.

[0048] If the wake-up source is the ignition wake-up source, that is, the ignition switch is switched from the OFF state to the ON state, an ignition interruption signal is generated according to the vehicle ignition action. The microprocessor recognizes and confirms the validity of the interruption signal. When the interruption signal meets the preset wake-up conditions, the microprocessor connects to the enable pin of the power chip through a general-purpose input / output signal, so that the enable signal of the power chip is kept at a high level, turning on the microprocessor power, thereby putting the vehicle communication device into normal working state.

[0049] If the wake-up source is the communication module, the vehicle communication device maintains a connection with the external network through its built-in communication module (such as a 3G / 4G / 5G module) to receive remote commands, data updates, or emergency signals. When the communication module receives network data or detects an event requiring immediate response, it generates an interrupt signal as the wake-up source. The microprocessor identifies and confirms the validity of this interrupt signal. When the interrupt signal meets the preset wake-up conditions, the microprocessor connects to the enable pin of the power chip via a general-purpose input / output signal, keeping the enable signal of the power chip high and turning on the microprocessor power, thus putting the vehicle communication device into normal operating condition.

[0050] Compared with the solution in related technologies that keeps the microprocessor powered, in the embodiments of this application, the power supply to the microprocessor is completely disconnected while ensuring the wake-up function, thereby reducing the power consumption of the vehicle communication device in the sleep state, thus improving the vehicle battery life, extending battery life, avoiding the problem of frequent charging due to excessive power consumption of the vehicle communication device in sleep mode, and reducing the maintenance cost of the vehicle communication device.

[0051] Therefore, this application embodiment introduces a wake-up source management module. Utilizing the collaborative work of the microprocessor, power chip, and wake-up source management module, when the vehicle communication device is in sleep mode, the power supply to the microprocessor is turned off, enabling more intelligent management of the vehicle communication device's sleep and wake-up states. Thus, this application embodiment achieves the goal of reducing the standby power consumption of the vehicle communication device, thereby improving battery life and extending battery lifespan. This solves the technical problem in related technologies where high standby power consumption in vehicle communication device circuits leads to poor battery life and short battery lifespan.

[0052] In one exemplary application scenario, the aforementioned vehicle-mounted communication device may further include: a sensor sleep control module, which is responsible for managing the interrupt signals corresponding to the wake-up sources of various sensors (such as temperature sensors, vibration sensors, position sensors, and image sensors) connected to the vehicle-mounted communication device, as well as their sleep and wake-up states. After acquiring data from various sensors, the module processes the sensor data and determines whether the wake-up conditions are met based on the processing results. If the processing results meet the wake-up conditions, a corresponding interrupt signal is generated.

[0053] Therefore, the embodiments of this application can adapt to the needs of different vehicle models and configurations, increasing compatibility with multiple wake-up sources. The embodiments of this application not only include support for traditional wake-up sources, but also consider new wake-up mechanisms that may be introduced in the future (such as gesture recognition, biometric unlocking, etc.) to meet the diverse needs of intelligent connected vehicles.

[0054] In one exemplary application scenario, the above-mentioned vehicle communication device may further include: an energy harvesting module, which can utilize ambient energy (such as solar energy, vibration energy or electromagnetic energy) to convert ambient energy into electrical energy and store it to provide additional power for the vehicle communication device. In some cases (such as when the vehicle's main power supply fails), the energy harvesting module can supply power to critical components to ensure that the critical components can generate a wake-up source.

[0055] Therefore, the embodiments of this application can reduce the dependence on the main power supply, further reduce the power consumption of the power chip and peripherals when there is no wake-up requirement, and quickly adjust the power distribution when the wake-up signal appears, so as to ensure the rapid startup and normal operation of the TBOX.

[0056] In one exemplary application scenario, the above-mentioned vehicle communication device may further include: an environmentally adaptable power control module, which can automatically adjust the power management strategy of the vehicle communication device according to external environmental conditions (such as temperature and humidity). For example, when the vehicle is in a high-temperature condition, the power supply current of some components of the vehicle communication device is reduced to prevent overheating.

[0057] Compared with related technologies, the embodiments of this application, through environmentally adaptive power control, enable the vehicle communication device to automatically adjust its power strategy according to external environmental conditions, thereby improving the operating efficiency and reliability of the vehicle communication device in practical applications. Therefore, the embodiments of this application can more effectively reduce the power consumption of the vehicle communication device.

[0058] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation portals are provided for users to choose to authorize or refuse.

[0059] According to an embodiment of this application, an embodiment of a vehicle communication system is also provided. The vehicle communication system includes: a vehicle terminal box and a sleep management device, wherein the vehicle terminal box is configured with any of the above-mentioned vehicle communication devices, and the sleep management device is used to exchange communication data with a target device and determine whether the vehicle communication device is in a sleep state based on the communication data.

[0060] It should be noted that the target device mentioned above can be an in-vehicle device or an external device (such as a mobile phone, other smart terminals, etc.).

[0061] The specific implementation of exchanging communication data with the target device and determining whether the vehicle communication device is in a sleep state based on the communication data can be as follows: the sleep management device exchanges communication data with the target device (such as a background server or user equipment), and intelligently determines whether the vehicle communication device has entered a sleep state based on the received communication data, avoiding unnecessary wake-ups and energy consumption, and ensuring that the vehicle communication device automatically enters a low-power mode when it is not in use, thereby reducing overall power consumption.

[0062] Through the above-mentioned vehicle communication system technical solutions corresponding to the vehicle terminal box and sleep management device, the embodiments of this application achieve the purpose of reducing the standby power consumption of the vehicle communication device, thereby realizing the technical effect of improving battery endurance and extending battery life, and thus solving the technical problem of high standby power consumption of the vehicle communication device circuit in related technologies, which leads to poor battery endurance and short life.

[0063] According to an embodiment of this application, a power supply management method for an in-vehicle communication device is also provided, comprising: in response to the in-vehicle communication device entering a sleep state, the power chip stops supplying power to the microprocessor; in response to multiple wake-up signals issued to the microprocessor in the vehicle communication link, a corresponding interrupt signal is generated; based on the interrupt signal, the wake-up source management module sends an enable signal to the power chip; and in response to the enable signal, the power chip supplies power to the microprocessor.

[0064] Through the above steps, the power supply management method for vehicle communication devices in this solution can not only reduce the power consumption of vehicle communication devices in sleep mode, but also ensure that the vehicle communication devices can be quickly and reliably woken up when a wake-up source is triggered, thus meeting the real-time needs of users.

[0065] According to an embodiment of this application, an embodiment of a vehicle is also provided, which is equipped with any of the above-mentioned vehicle communication devices or vehicle communication systems.

[0066] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0067] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A vehicle-mounted communication device, characterized in that, include: Microprocessor, power chip, and wake-up source management module; The power chip is used to stop supplying power to the microprocessor when the vehicle communication device is in a sleep state, and to supply power to the microprocessor in response to an enable signal. The wake-up source management module is used to send the enable signal to the power chip based on the received target wake-up signal, and to wake up the microprocessor based on the target wake-up signal; The wake-up source management module includes a target transceiver corresponding to the target wake-up signal. The target transceiver can be configured with a low-power sleep mode, and in the low-power sleep mode, the target transceiver supports input restriction function. The target transceiver is used to respond to the wake-up message sent by the target wake-up source when the vehicle communication device is in the sleep state, and generate an interrupt signal corresponding to the input restriction function as the target wake-up signal; The vehicle-mounted communication device also includes an energy harvesting module for converting ambient energy into electrical energy and storing the electrical energy to provide additional power to the vehicle-mounted communication device.

2. The vehicle-mounted communication device according to claim 1, characterized in that, The wake-up source management module is used to respond to various wake-up signals sent to the microprocessor in the vehicle communication link. These various wake-up signals are interrupt signals corresponding to multiple wake-up sources.

3. The vehicle-mounted communication device according to claim 2, characterized in that, The multiple wake-up sources include: communication bus wake-up source, clock wake-up source, button wake-up source, ignition wake-up source, and communication module wake-up source.

4. The vehicle-mounted communication device according to claim 3, characterized in that, The target wake-up signal is at least one of the multiple wake-up signals.

5. The vehicle-mounted communication device according to any one of claims 2 to 4, characterized in that, In the wake-up source management module, the multiple output terminals of the various wake-up signals are respectively connected to the enable pin of the power chip through diodes.

6. The vehicle-mounted communication device according to claim 1, characterized in that, The microprocessor is used to connect to the enable pin of the power chip via a general-purpose input / output signal after the power chip supplies power to the microprocessor in response to the enable signal, so that the enable signal of the power chip is kept at a high level.

7. A vehicle-mounted communication system, characterized in that, include: A vehicle-mounted terminal box and a sleep management device, wherein the vehicle-mounted terminal box is configured with the vehicle-mounted communication device according to any one of claims 1 to 6, and the sleep management device is used to exchange communication data with a target device and determine whether the vehicle-mounted communication device is in a sleep state based on the communication data.

8. A vehicle, characterized in that, The vehicle communication device is configured with any one of claims 1 to 6, or the vehicle communication system is configured with the one of claims 7.

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