WO2019201052A1 - 车辆的多媒体娱乐系统、控制方法及车辆 - Google Patents

车辆的多媒体娱乐系统、控制方法及车辆 Download PDF

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Publication number
WO2019201052A1
WO2019201052A1 PCT/CN2019/079234 CN2019079234W WO2019201052A1 WO 2019201052 A1 WO2019201052 A1 WO 2019201052A1 CN 2019079234 W CN2019079234 W CN 2019079234W WO 2019201052 A1 WO2019201052 A1 WO 2019201052A1
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Prior art keywords
chip
entertainment system
audio
display
communication interface
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English (en)
French (fr)
Inventor
曾帅
樊迎军
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements

Definitions

  • the present application relates to the field of automotive technology, and in particular, to a multimedia entertainment system, a control method, and a vehicle for a vehicle.
  • the automobile multimedia platform is often implemented by a separate electronic control unit.
  • the multimedia entertainment system hardware is mainly divided into three independent parts, a dashboard, a central control entertainment system and a remote communication unit (T-BOX).
  • the separate electronic control unit needs to be carried out independently in the development, certification and testing, resulting in slow product development and long development cycle.
  • more space is needed in the car to accommodate these separate hardware, and the wiring harness arrangement is complicated.
  • the present application aims to solve at least one of the technical problems in the related art to some extent.
  • the first object of the present application is to propose a multimedia entertainment system for a vehicle.
  • the vehicle's multimedia entertainment system has the advantages of fast response speed, low cost, and space saving.
  • a second object of the present application is to propose a vehicle.
  • a third object of the present application is to propose a multimedia entertainment method for a vehicle.
  • an embodiment of the first aspect of the present application discloses a multimedia entertainment system for a vehicle, including: a dashboard display communication interface for providing display information for a dashboard display; and a central control entertainment system display a communication interface for providing display information to a display screen of the central control entertainment system; the system on chip, the system on chip being respectively connected to the communication interface between the dashboard display screen and the display interface of the central control entertainment system, the system on chip Configuring a first virtual system implementing a dashboard function and a second virtual system implementing a central control entertainment system function, the first virtual system providing display information for the dashboard display through the dashboard display communication interface The second virtual system provides display information for the central control entertainment system display screen through the central control entertainment system display communication interface; and the controller is connected to the system on chip for controlling the operation of the system on chip status.
  • the multimedia entertainment system of the vehicle of the embodiment of the present application through the system-on-chip, the first virtual system implementing the function of the dashboard and the second virtual system implementing the function of the central control entertainment system, the function of the dashboard and the function of the central control entertainment system, etc. It is realized by unified hardware, which effectively reduces the layout space, and the system has the advantage of fast response.
  • An embodiment of the second aspect of the present application discloses a vehicle comprising: the multimedia entertainment system of the vehicle according to the above first aspect.
  • the multimedia entertainment system of the vehicle realizes the function of the instrument panel and the function of the central control entertainment system through unified hardware through the first virtual system configured with the function of the dashboard and the second virtual system implementing the function of the central control entertainment system in the system on chip. Therefore, the arrangement space is effectively reduced, and the system has the advantage of fast response speed.
  • An embodiment of the third aspect of the present application discloses a method for controlling a multimedia entertainment system of a vehicle, comprising the steps of: the controller detecting a trigger signal; and when detecting the trigger signal, waking up the system on a chip to enable the system on chip
  • the first virtual system and/or the second virtual system are controlled to perform corresponding operations according to user instructions.
  • the control method of the multimedia entertainment system of the vehicle of the embodiment of the present application has the advantages of fast response speed, low cost, and space saving.
  • FIG. 1 is a block diagram showing the structure of a multimedia entertainment system of a vehicle according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a software virtualization platform of a multimedia entertainment system of a vehicle according to another embodiment of the present application;
  • FIG. 3 is a schematic diagram of a booting process of a multimedia entertainment system of a vehicle according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a shutdown process of a multimedia entertainment system of a vehicle according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of integration of panoramic images of a multimedia entertainment system of a vehicle according to an embodiment of the present application
  • FIG. 6 is a flow chart of a method of controlling a multimedia entertainment system of a vehicle in accordance with an embodiment of the present application.
  • FIG. 1 is a block diagram showing the structure of a multimedia entertainment system of a vehicle according to an embodiment of the present application.
  • a multimedia entertainment system 100 for a vehicle wherein the multimedia entertainment system 100 is used to interact with a dashboard display 200 and a central entertainment system display 300, the multimedia entertainment system 100 includes: The dashboard display communication interface 110, the central control entertainment system display communication interface 120, the system on chip 130, and the controller 140.
  • the dashboard display communication interface 110 is used to provide display information for the dashboard display 200.
  • the central control entertainment system display communication interface 120 is used to provide display information for the central control entertainment system display screen 300.
  • the system on chip 130 is respectively connected to the dashboard display communication interface 110 and the central control entertainment system display communication interface 120.
  • the system on chip 130 is configured with a first virtual system for implementing the dashboard function and a second virtual system for implementing the central control entertainment system function.
  • the system, the first virtual system provides display information to the dashboard display 200 via the dashboard display communication interface 110
  • the second virtual system provides display information to the central entertainment system display 300 via the central entertainment system display communication interface 120.
  • Controller 140 is coupled to system on chip 130 for controlling the operational state of system on chip 130. For example, the system on chip 130 is controlled to operate from a sleep mode.
  • the centrally controlled entertainment system display requires a good user interface and user experience. Therefore, in one embodiment of the present application, the first virtual system is, but not limited to, an RTOS operating system, and the second virtual system is, but not limited to, an Android operating system. That is: the RTOS has fast response and high reliability, and therefore, is suitable for the dashboard display 200.
  • the central control entertainment system display needs a friendly user interface and user experience, so it is suitable for the Android operating system.
  • the multimedia entertainment system 100 of the vehicle of the embodiment of the present application implements a cluster function, a central control entertainment system (Infotainment) function, and even a remote communication unit (T-BOX), and further supports a driving recorder (DVR). Memory 360° panoramic image system. Of course, you can also support more features.
  • the system on chip 130 is configured with a service operating system for resource allocation for the first virtual system and the second virtual system.
  • the 4-core processor used by the system on chip 130 is responsible for a central processing unit (CPU) and a graphics processor (Graphics Processing) by a dedicated service operating system (SERVICE OS). Resources such as Unit (GPU), Digital Signal Processing (DSP), and Intelligent Power Unit (IPU) are allocated to different applications. Since the central control entertainment system has many applications, it can be distributed by two core processors. When the rear entertainment system needs to be expanded, it can be decomposed again.
  • CPU central processing unit
  • DSP Digital Signal Processing
  • IPU Intelligent Power Unit
  • virtualization is to run multiple different software systems simultaneously on a set of hardware platforms, and allocate corresponding hardware resources for different software systems. And make their work mutually unaffected, physically separated.
  • the RTOS system such as QNX
  • QNX is installed in an application environment with high real-time requirements for the instrument panel.
  • the infotainment system is equipped with a user experience and a good Android operating system to ensure the user experience. It not only satisfies the processing needs of the system for real-time tasks, but also meets the entertainment requirements of users.
  • the system-on-chip also has powerful networking features, such as integrated T-BOX applications, to form an all-in-one hardware and software system.
  • the multimedia entertainment system 100 of the vehicle further includes: a wireless communication module, wherein the wireless communication module is respectively connected to the system on chip 130 and the controller 140, and the wireless communication module is configured to receive Upon the remote request signal sent by the mobile terminal, an interrupt request is sent to the controller 140 to cause the controller 140 to exit the standby state and wake up the system on chip 130 to cause the system on chip 130 to enter the active state from the sleep state.
  • the wireless communication module is an LTE module.
  • the application enables the dashboard, the central control entertainment system to share a set of hardware, and utilizes the low power consumption of the system on chip 130 and its own modem, integrated remote service, so that the system can wake up quickly.
  • the functions of the in-vehicle multimedia entertainment system are centralized into the system 130 for processing.
  • the entire system In the vehicle flameout mode, the entire system enters a low-power state like a mobile phone sleep, and the remote networking service is still running in the background, the vehicle The remote service continues to work in hibernation. And meet the static power consumption of less than 6mA in the flameout state.
  • the system can quickly wake up by detecting the ignition signal (such as ⁇ 2S), and the various display screens are illuminated according to the usage, and each function module quickly returns to the working state. Because it has excellent standby power performance, it can work quickly when waking up. Therefore, the module with higher time requirements for the whole vehicle can be activated quickly. For example, the 360° panoramic module can work quickly to display the surrounding scene, bringing excellent users. Experience.
  • the ignition signal such as ⁇ 2S
  • the two screens of the system are used as the display of the instrument panel and the central control entertainment system.
  • the two screens are independent of each other.
  • the corresponding resources are allocated by using virtualization technology. Even if one of the systems has a problem, it will not affect. Bring another system.
  • the controller 140 acts as a vehicle control interface, and by default (vehicles are turned off), all external displays are off.
  • the controller 140 is in a sleep mode, and the LTE module periodically communicates with the network. This mode can be awakened by the following conditions. as follows:
  • the user sends a startup command to the background server through remote control.
  • the server communicates with the LTE module to issue a startup command, and the LTE module notifies the controller 140 to start via a vehicle bus, such as a CAN bus interface, after which the controller 140 will drive the vehicle, the system on chip 130.
  • a vehicle bus such as a CAN bus interface
  • the user unlocks the vehicle around the vehicle, causing the controller 140 to receive the wake-up signal, after which the controller 140 notifies the battery management integrated circuit (PMIC) integrated in the system on chip 130 to wake up the system on chip 130, at this time, the system on chip 130 enters the active state, and immediately awaits the display of the dashboard and the display of the central entertainment system when the power-on signal is valid.
  • PMIC battery management integrated circuit
  • the system maintains constant power supply, and even if the vehicle is turned off, it enters a low-power state and waits for a power-on command, thereby responding quickly. Since the system does not really shut down, the response speed is extremely fast, so the panoramic system is directly integrated and the system is internally processed, as shown in Figure 5.
  • the dashboard display communication interface and the central control entertainment system display communication interface include a serial and deserialization module.
  • the method further includes: a multi-channel image communication interface, configured to receive a multi-channel image signal sent by the panoramic camera, and the multi-channel image communication interface is connected to the system on chip 130 to generate according to the multi-channel image signal.
  • the panoramic image is transmitted to the central entertainment system display through the central control entertainment system display communication interface 120.
  • the method further includes: a driving recorder image communication interface for receiving an image signal collected by the driving recorder, wherein the driving recorder image communication interface is connected to the system on chip 130.
  • the multi-channel image communication interface is for receiving a plurality of image signals transmitted by a panoramic camera (CAM).
  • the system on chip 130 is coupled to the multi-channel image communication interface for generating a panoramic image based on the multi-channel image signal after entering the active state from the sleep state.
  • the controller 140 is coupled to the system on chip 130 for exiting the standby state upon receiving the trigger signal and waking up the system on chip 130 to cause the system on chip 130 to enter the active state from the sleep state.
  • the panoramic camera includes a plurality of cameras, for example, four cameras that capture the front, rear, left, and right directions of the exterior of the vehicle. In this way, the panoramic image can be seen in the front, rear, left, and right directions of the outside of the car.
  • the multi-channel image communication interface includes, but is not limited to, a serial and deserialization module (SERDES), such that the serial system 130 is transmitted after the serial and deserialization of the multiple image signals acquired by the panoramic camera.
  • the system on chip 130 includes a modulation and demodulation circuit (MODEM) and a power management integrated circuit (PMIC) for processing multiple image signals to cause the system on chip 130 to splicing multiple image signals into a panoramic image.
  • the power management integrated circuit is used to control the operating state of the system on chip 130.
  • the system on chip 130 uses, for example, a system on chip 130, a MODEM, which is a Qualcomm platform, to connect multiple image signals directly to the system on chip 130, thereby eliminating external panoramic processing modules, such as eliminating externalities.
  • a MODEM which is a Qualcomm platform
  • the DSP, FPGA, etc., as well as the serial and deserialization module (SERDES) of the external panoramic processing module are omitted.
  • the system-on-chip 130 adopts a Qualcomm platform, so that it has excellent standby power performance and can enter a low-power sleep state when the vehicle is turned off, so that it can be quickly woken up.
  • Another reason for adopting the Qualcomm platform is the integrated modem (MODEM), and the power consumption performance is low in the standby mode of operation, and the return speed is fast, so that the multimedia entertainment system 100 can be quickly responded.
  • MODEM integrated modem
  • the trigger signal includes a vehicle power-on signal and a wake-up signal, wherein the controller 140 transitions from the standby state to the working state upon receiving the vehicle power-on signal or the wake-up signal, and notifies the system on-chip 130 to wake up. That is, in the initial state, the multimedia entertainment system 100 processes the sleep state.
  • the controller 140 promptly informs the system on chip 130 to wake up, and the system on chip 130 is sleeped. After the state enters the working state, the splicing work of the panoramic image can be processed immediately.
  • the system on chip 130 is in a sleep state, and the controller 140 is in a standby state of low power consumption.
  • system on chip 130 is further configured to display the panoramic image through the display screen (the central control display of the multimedia entertainment system 100) after receiving the reverse signal, that is, wait until the user switches the gear to the reverse gear, or When the user presses the relevant image switch button on the steering wheel, the corresponding panoramic image is immediately displayed on the display.
  • the panoramic image processing system of the vehicle in the related art generally adopts an external panoramic processing module for collecting and splicing the panoramic image, it is equivalent to adding an electronic control unit, which not only increases the control complexity of the whole vehicle and The cost is also not conducive to the discovery of today's automotive electronics, namely: toward an integrated central processor.
  • the panoramic image processing system of the vehicle in the related art is in a shutdown state after the flameout, and starts to start after receiving the ACC/WAKE signal, the startup is slow, or the dependence on the operating system is high, for example, the RTOS starts. Fast, but android and other systems will start slow.
  • the external panoramic processing module needs to wait for the multimedia system to initialize before displaying the panoramic image, so that the response speed is relatively slow.
  • the multimedia entertainment system of the vehicle of the embodiment of the present application is in a standby state because it is not turned off, but has low power consumption and is quickly switched to a working state, for example, can be completed under 6 mA.
  • the operating system requirements are not critical, and Equipped with RTOS, Linux, android and other operating systems, when receiving the trigger signal, it will quickly switch to the working mode, with good platform portability.
  • the vehicle's multimedia entertainment system is built under the framework of a unified hardware system, eliminating the need for an external panoramic processing module, in line with the trend of automotive electronics integration, and saving costs and saving layout space.
  • the multimedia entertainment system of the vehicle further includes: a Bluetooth audio module, the Bluetooth audio module being connected to the system on chip 130; and an audio processing module, wherein the audio processing module is respectively connected to the Bluetooth audio module and the system on chip.
  • the audio processing module has a first audio interface, a second audio interface, a third audio interface, and a fourth audio interface, wherein the first audio interface is configured to receive a voice navigation signal sent by the system on chip 130, a second audio interface for interacting with the on-chip system 130 for other audio signals, the third audio interface being coupled to the Bluetooth audio module for performing Bluetooth audio signal interaction with the Bluetooth audio module, the fourth The audio interface is used to receive the voice signal sent by the microphone.
  • the audio processing module is, for example, a DSP.
  • the Bluetooth audio module is directly connected to the audio processing module, that is, the Bluetooth voice channel is directly connected to the audio processing module, thereby reducing the connection of the Bluetooth audio signal to the system on chip in the call state. 130, and then the time delay of transmitting the Bluetooth audio signal to the audio processing module by the system on chip 130, and reducing the audio processing load of the system on chip 130.
  • the system on chip 130 is connected to the audio processing module by using two audio channels, that is, a first audio interface and a second audio interface.
  • the first audio interface is an audio output signal provided for navigation
  • the second audio interface is Other types of output voice signals (ie: other audio signals). Since the GPS signal on the vehicle has a higher priority, the embodiment of the present application uses two audio channels on the hardware, and after being processed by the audio processing module, the navigation broadcast can be completely unaffected while the user listens to music. , mix by audio processing module. For example, when the music is played, when the navigation information is to be played, the music sound can be lowered and the navigation can be played.
  • the audio processing module includes: an A/D conversion unit, an equalizer, and an echo cancellation and noise reduction unit.
  • the A/D conversion unit is configured to perform analog-to-digital conversion on the voice signal to obtain a digital voice signal.
  • the equalizer is coupled to the A/D conversion unit to adjust the gain value of the digital speech signal.
  • the echo cancellation and noise reduction unit is coupled to the equalizer to cancel the echo of the digital speech signal and to denoise the digital speech signal.
  • the dashboard function and the central control entertainment system function are implemented by the first virtual system configured to implement the dashboard function and the second virtual system implementing the central control entertainment system function in the system on chip. It is realized by unified hardware, which effectively reduces the layout space, and the system has the advantage of fast response.
  • An embodiment of the present application discloses a vehicle comprising: a multimedia entertainment system of a vehicle according to any of the above embodiments.
  • the multimedia entertainment system of the vehicle realizes the function of the instrument panel and the function of the central control entertainment system through unified hardware through the first virtual system configured with the function of the dashboard and the second virtual system implementing the function of the central control entertainment system in the system on chip. Therefore, the arrangement space is effectively reduced, and the system has the advantage of fast response speed.
  • FIG. 6 is a flow chart of a method of controlling a multimedia entertainment system of a vehicle in accordance with an embodiment of the present application.
  • the multimedia entertainment system of the vehicle in the control method of the multimedia entertainment system of the vehicle is the multimedia entertainment system of the vehicle according to any of the above embodiments.
  • a method for controlling a multimedia entertainment system of a vehicle includes the following steps:
  • S601 The controller detects the trigger signal.
  • S602 When the trigger signal is detected, the system on chip 130 is woken up, so that the system on chip 130 controls the first virtual system and/or the second virtual system to perform corresponding operations according to user instructions.
  • the control method of the multimedia entertainment system of the vehicle of the embodiment of the present application has the advantage of fast response speed and improves the use experience of the vehicle.
  • the description with reference to the terms “one embodiment”, “some embodiments”, “example”, “specific example”, or “some examples” and the like means a specific feature described in connection with the embodiment or example.
  • a structure, material or feature is included in at least one embodiment or example of the application.
  • the terms “first” and “second” are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

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Abstract

一种车辆的多媒体娱乐系统、控制方法及车辆，该车辆的多媒体娱乐系统包括：仪表盘显示屏通信接口；中控娱乐系统显示屏通信接口；片上系统，片上系统分别与仪表盘显示屏通信接口和中控娱乐系统显示屏通信接口相连，片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统；控制器，控制器与片上系统相连，用于控制片上系统的运行状态。该车辆的多媒体娱乐系统具有响应速度快、成本低且节省布置空间的优点。

Description

车辆的多媒体娱乐系统、控制方法及车辆
相关申请的交叉引用
本申请基于申请号为201810338627.6，申请日为2018年04月16申请的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及汽车技术领域，特别涉及一种车辆的多媒体娱乐系统、控制方法及车辆。
背景技术
相关技术中，汽车多媒体平台往往采用分离的电子控制单元实现，例如：多媒体娱乐系统硬件主要分为三个独立的部分，仪表盘，中控娱乐系统及远程通讯单元(T-BOX)。分离的电子控制单元在开发、认证及测试等环节需要独立进行，导致产品开发进度慢，开发周期长。另外，在车上也需要更大的空间来容纳这些分离的硬件，线束布置复杂。
申请内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本申请的第一个目的在于提出一种车辆的多媒体娱乐系统。该车辆的多媒体娱乐系统具有响应速度快、成本低且节省布置空间的优点。
本申请的第二个目的在于提出一种车辆。
本申请的第三个目的在于提出一种车辆的多媒体娱乐方法。
为了实现上述目的，本申请的第一方面的实施例公开了一种车辆的多媒体娱乐系统，包括：仪表盘显示屏通信接口，用于为仪表盘显示屏提供显示信息；中控娱乐系统显示屏通信接口，用于为中控娱乐系统显示屏提供显示信息；片上系统，所述片上系统分别与所述仪表盘显示屏通信接口和所述中控娱乐系统显示屏通信接口相连，所述片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，所述第一虚拟系统通过所述仪表盘显示屏通信接口为仪表盘显示屏提供显示信息，所述第二虚拟系统通过所述中控娱乐系统显示屏通信接口为中控娱乐系统显示屏提供显示信息；控制器，所述控制器与所述片上系统相连，用于控制所述片上系统的运行状态。
本申请实施例的车辆的多媒体娱乐系统，通过片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，将仪表盘功能和中控娱乐系统功能等通过统一的硬件实现，从而有效降低布置空间，并且该系统具有响应速度快的优点。
本申请第二方面的实施例公开了一种车辆，包括：根据上述第一方面所述的车辆的多 媒体娱乐系统。该车辆的多媒体娱乐系统通过片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，将仪表盘功能和中控娱乐系统功能等通过统一的硬件实现，从而有效降低布置空间，并且该系统具有响应速度快的优点。
本申请第三方面的实施例公开了一种车辆的多媒体娱乐系统的控制方法，包括以下步骤：控制器检测触发信号；当检测到所述触发信号后，唤醒片上系统，以使所述片上系统根据用户指令控制第一虚拟系统和/或第二虚拟系统执行相应的操作。
本申请实施例的车辆的多媒体娱乐系统的控制方法，具有响应速度快、成本低且节省布置空间的优点。
附图说明
图1是根据本申请一个实施例的车辆的多媒体娱乐系统的结构框图；
图2是根据本申请另一个实施例的车辆的多媒体娱乐系统的软件虚拟化平台示意图；
图3是根据本申请一个实施例的车辆的多媒体娱乐系统的开机流程示意图；
图4是根据本申请一个实施例的车辆的多媒体娱乐系统的关机流程示意图；
图5是根据本申请一个实施例的车辆的多媒体娱乐系统的全景影像的集成示意图；
图6是根据本申请一个实施例的车辆的多媒体娱乐系统的控制方法的流程图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
以下结合附图描述根据本申请实施例的车辆的多媒体娱乐系统、方法及车辆。
图1是根据本申请一个实施例的车辆的多媒体娱乐系统的结构框图。
如图1所示，根据本申请一个实施例的车辆的多媒体娱乐系统100，其中，多媒体娱乐系统100用于与仪表盘显示屏200、中控娱乐系统显示屏300交互，多媒体娱乐系统100包括：仪表盘显示屏通信接口110、中控娱乐系统显示屏通信接口120、片上系统130和控制器140。
其中，仪表盘显示屏通信接口110用于为仪表盘显示屏200提供显示信息。中控娱乐系统显示屏通信接口120用于为中控娱乐系统显示屏300提供显示信息。片上系统130分别与仪表盘显示屏通信接口110和中控娱乐系统显示屏通信接口120相连，片上系统130中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，第一虚拟系统通过仪表盘显示屏通信接口110为仪表盘显示屏200提供显示信息，第二虚拟系统通过中控娱乐系统显示屏通信接口120为中控娱乐系统显示屏300提供显示信息。控制器140与片上系统130相连，用于控制片上系统130的运行状态。例如：控制片上系统130 从休眠模式进行工作模式。
由于仪表盘显示屏200需要及时且准确地显示相关信息，而中控娱乐系统显示屏需要良好的用户界面和用户体验。因此，在本申请的一个实施例中，第一虚拟系统为但不限于RTOS操作系统，第二虚拟系统为但不限于Android操作系统。即：RTOS具有快速响应和高可靠性的，因此，适用于仪表盘显示屏200。中控娱乐系统显示屏需要有友好的用户界面和用户体验，因此，适用Android操作系统。
对Android的支持可以选择高通芯片，高通芯片有着强大的硬件性能，并且集成了调制解调器，因此，片上系统130可以选择高通芯片实现。
本申请实施例的车辆的多媒体娱乐系统100，实现了仪表盘(Cluster)功能，中控娱乐系统(Infotainment)功能，甚至远程通讯单元(T-BOX)，另外还扩展支持行车记录仪(DVR)记忆360°全景影像系统。当然，还可以支持更多功能。
基于本申请实施例的车辆的多媒体娱乐系统100的硬件系统，在软件上，片上系统130中配置有服务操作系统，服务操作系统用于为第一虚拟系统和第二虚拟系统进行资源分配。
具体而言，如图2所示，片上系统130使用的4核心处理器，由专用的服务操作系统(SERVICE OS)负责将中央处理器(Central Processing Unit，简称CPU)、图形处理器(Graphics Processing Unit，简称GPU)、数字信号处理(Digital Signal Processing，简称DSP)、智能动力单元(Intelligent Power Unit，简称IPU)等资源分配给不同的应用。由于中控娱乐系统的应用较为多，因此可以分配两个核心处理器处理，后续需要扩展后排娱乐系统时，也可再行分解。
其中，虚拟化是在一套硬件平台上同时运行多个不同的软件系统，为不同的软件系统分配对应的硬件资源。并使其工作互不影响，物理隔开。
如图2所示，在面对仪表盘对实时性要求较高的应用环境下搭载RTOS系统，如QNX等，在信息娱乐系统(infotainment)中搭载用户体验姣好的Android操作系统，保证用户体验，既满足系统对实时任务的处理需要，又满足了用户的娱乐要求。另外，片上系统中还具有强大的联网功能，例如集成T-BOX应用，形成多合一的软硬件系统。
在本申请的一个实施例中，车辆的多媒体娱乐系统100，还包括：无线通信模块，所述无线通信模块分别与所述片上系统130和控制器140相连，所述无线通信模块用于在接收到移动终端发送的远程请求信号时，向所述控制器140发送中断请求，以便控制器140退出待机状态，并唤醒所述片上系统130，以使片上系统130由睡眠状态进入工作状态。其中，无线通信模块为LTE模块。
由于是一套硬件，在实际使用中需要解决的便是不同的电源管理模式，比如车辆熄火后，TBOX部分是需要持续工作的，而娱乐系统是不需要工作的，仪表盘要保持快速唤醒，其具体实现如图3和图4所示。
本申请通过虚拟化技术，使得仪表盘，中控娱乐系统共享一套硬件，并利用片上系统 130的低功耗和自带调制解调器、集成远程服务，使得系统能够快速唤醒。
本申请的实施例中，将车载多媒体娱乐系统的功能集中到片上系统130中进行处理，车辆熄火模式下，整个系统如同手机休眠一般进入低功耗状态，远程联网服务依然在后台运行，车辆的远程服务在休眠状态下继续工作。且满足熄火状态下小于6mA的静态功耗。
当车辆解锁或点火，系统通过检测到点火信号能迅速唤醒(如<2S)，根据使用情况点亮各个显示屏，各功能模块迅速恢复到工作状态。由于其有优秀的待机功耗表现，在唤醒时能迅速工作，所以，整车对时间要求较高的模块能够迅速激活，如360°全景模块能迅速工作显示周边景象，带来极好的用户体验。
该系统搭载的两块屏幕，分别作为仪表盘和中控娱乐系统的显示，两块屏幕互相独立，在工作中利用虚拟化技术分别分配对应的资源，即使其中一个系统出问题，也不会影响带另外一个系统。
控制器140作为整车控制接口，在默认情况下(车辆熄火)，所有外部显示器均为关闭状态。控制器140为睡眠模式，LTE模块周期性与网络保持通讯。该模式下可以通过下列情况唤醒。如下：
用户通过远程控制将启动命令发送给后台服务器，服务器通过与LTE模块通讯下达开机启动命令，LTE模块通过车辆总线，如CAN总线接口通知控制器140启动，之后控制器140会将车辆，片上系统130等需要启动的功能根据用户指令启动。
通过用户钥匙解锁，用户在车辆周围解锁车辆，使控制器140收到唤醒信号，之后控制器140通知集成在片上系统130中的电池管理集成电路(PMIC)唤醒片上系统130，此时，片上系统130进入激活状态，等待上电信号有效时立刻点亮仪表盘的显示器和中控娱乐系统显示屏。
在整个过程中，该系统保持常供电，即使是车辆熄火状态也是进入低功耗状态，等待开机指令，从而，可以快速响应。由于系统并不会真正意义上关机，响应速度极快，所以将全景系统直接集成及本系统内部处理，如图5所示。
由于是一套硬件系统，屏幕和控制部分距离较远，所以，屏幕的连接并不是采用传统的屏线，而是使用串行和解串(serdes)方式，可以使用TI或者MAXIM均可，即：仪表盘显示屏通信接口以及所述中控娱乐系统显示屏通信接口包括串行和解串模块。
在本申请的一个实施例中，还包括：多路图像通信接口，用于接收全景摄像头发送的多路图像信号，所述多路图像通信接口与片上系统130相连，以根据多路图像信号生成全景影像，并将全景影像通过中控娱乐系统显示屏通信接口120发送至所述中控娱乐系统显示屏。另外，还包括：行车记录仪图像通信接口，用于接收行车记录仪采集到的图像信号，所述行车记录仪图像通信接口与所述片上系统130相连。
具体地说，多路图像通信接口用于接收全景摄像头(CAM)发送的多路图像信号。片上系统130与多路图像通信接口相连，用于在由睡眠状态进入工作状态后，根据多路图像 信号生成全景影像。控制器140与片上系统130相连，用于在接收到触发信号后，退出待机状态，并唤醒片上系统130，以使片上系统130由睡眠状态进入工作状态。
全景摄像头包括多个摄像头，例如包括采集车外前、后、左、右四个方向的四个摄像头。这样，全景图像可以看到车外前、后、左、右四个方向的情况。
多路图像通信接口包括但不限于串行和解串模块(SERDES)，这样，对全景摄像头采集到的多路图像信号进行串行和解串之后，传送片上系统130。片上系统130包括：调制解调电路(MODEM)和电源管理集成电路(PMIC)，调制解调电路用于处理多路图像信号，以使片上系统130将多路图像信号拼接为全景影像。电源管理集成电路用于控制片上系统130的工作状态。
在具体示例中，片上系统130例如采用为高通平台的片上系统130，集成调制解调器(MODEM)，将多路图像信号直接和片上系统130连接，从而省掉外部的全景处理模块，如省去了外部的DSP、FPGA等，以及省去了外部的全景处理模块的串行和解串模块(SERDES)等。
片上系统130采用高通平台，从而具有优秀的待机功耗表现，可以在车辆熄火状态下进入低功耗休眠状态，因此，能够快速被唤醒。采用高通平台的另一原因为集成调制解调器(MODEM)，且在待机工作模式下功耗表现低，并且返回速度快，从而可以保证多媒体娱乐系统100可以快速响应。
触发信号包括车辆上电信号和唤醒信号，其中，控制器140在接收到车辆上电信号或者唤醒信号时，由待机状态转入工作状态，并通知片上系统130唤醒。即：初始状态下，多媒体娱乐系统100处理休眠状态，当车辆收到ACC(上电信号)/WAKE信号(唤醒信号)时，控制器140会迅速通知片上系统130进行唤醒，片上系统130由睡眠状态进入工作状态后，从而可以立刻处理全景影像的拼接工作。
可以理解的是，初始状态下，片上系统130处于睡眠状态，控制器140处于低功耗的待机状态。
另外，片上系统130还用于在接收到倒挡信号后，通过显示屏(多媒体娱乐系统100的中控显示屏)显示全景影像，也就是说，等到用户将挡位切换到倒档时，或者用户按下方向盘上的相关影像开关按键之后，就会在显示屏上立即显示出对应的全景影像。
由于相关技术中的车辆的全景影像处理系统通常采用外置的全景处理模块进行全景影像的采集和拼接等，从而，相当于多增加了一个电子控制单元，不仅增加了整车的控制复杂度和成本，同时也不利于现今汽车电子的发现方向，即：走向集成化的中央处理器。
另外，相关技术中的车辆的全景影像处理系统在熄火后都是处于关机状态，收到ACC/WAKE信号后才开始开机，启动较慢，或者是对操作系统依赖性高，例如：RTOS会启动快，但android等系统会启动慢。外置的全景处理模块需要等待着多媒体系统初始化完成后才能显示全景影像，从而响应速度相对较慢。
本申请实施例的车辆的多媒体娱乐系统，由于并不关机，而是处于待机状态，功耗低且切换到工作状态快速，例如可以在6mA以下完成，另外，对操作系统要求并不苛刻，可以搭载RTOS、Linux、android等操作系统，当收到触发信号后，就会快速切换到工作模式，具有良好的平台移植性。此外，该车辆的多媒体娱乐系统建立在统一硬件系统的架构下，省去外置的全景处理模块，符合汽车电子集成化趋势，并且节省成本、节省布置空间。
车辆的多媒体娱乐系统，还包括：蓝牙音频模块，所述蓝牙音频模块与所述片上系统130相连；音频处理模块，所述音频处理模块分别与所述蓝牙音频模块和所述片上系统相连。
其中，音频处理模块具有第一音频接口、第二音频接口、第三音频接口和第四音频接口，其中，所述第一音频接口用于接收来自所述片上系统130发送的语音导航信号，第二音频接口用于与所述片上系统130进行其它音频信号的交互，所述第三音频接口与所述蓝牙音频模块相连，以与所述蓝牙音频模块进行蓝牙音频信号的交互，所述第四音频接口用于接收麦克风发送的语音信号。其中，音频处理模块例如为DSP。
本申请实施例的车载音频系统100，蓝牙音频模块直接与音频处理模块相连，即：将蓝牙语音通路直接连接于音频处理模块，这样，在通话状态下，减少了将蓝牙音频信号连接到片上系统130，而后由片上系统130再将蓝牙音频信号传送给音频处理模块的时间延时，并且降低了片上系统130的音频处理负载。
另外，片上系统130利用两路音频通路与音频处理模块相连，即：第一音频接口和第二音频接口，此时，第一音频接口是专为导航提供的音频输出信号，第二音频接口是其它类型输出的语音信号(即：其它音频信号)。由于车辆上的GPS信号具有较高的优先级，因此，本申请的实施例在硬件上使用两路音频通路，经过音频处理模块处理后可以实现在用户听音乐的同时，导航播报完全不受影响，通过音频处理模块来混音。例如在音乐播放的时候，有导航信息要播放时，可以降低音乐声音，同时播放导航。
具体来说，音频处理模块包括：A/D转换单元、均衡器和回声消除与降噪单元。其中，A/D转换单元用于对语音信号进行模数转换，得到数字语音信号。均衡器与A/D转换单元相连，以调整数字语音信号的增益值。回声消除与降噪单元与均衡器相连，以消除数字语音信号的回声及对数字语音信号进行降噪。
根据本申请实施例的车辆的多媒体娱乐系统，通过片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，将仪表盘功能和中控娱乐系统功能等通过统一的硬件实现，从而有效降低布置空间，并且该系统具有响应速度快的优点。
本申请的实施例公开了一种车辆，包括：根据上述任一个实施例中的车辆的多媒体娱乐系统。该车辆的多媒体娱乐系统通过片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，将仪表盘功能和中控娱乐系统功能等通过统一的硬件实现，从而有效降低布置空间，并且该系统具有响应速度快的优点。
另外，根据本申请实施例的车辆的其它构成以及作用对于本领域的普通技术人员而言都是已知的，为了减少冗余，此处不做赘述。
图6是根据本申请一个实施例的车辆的多媒体娱乐系统的控制方法的流程图。其中，车辆的多媒体娱乐系统的控制方法中的车辆的多媒体娱乐系统为根据上述任一个实施例所述的车辆的多媒体娱乐系统。
如图6所示，根据本申请一个实施例的车辆的多媒体娱乐系统的控制方法，包括如下步骤：
S601：控制器检测触发信号。
S602：当检测到所述触发信号后，唤醒片上系统130，以使片上系统130根据用户指令控制第一虚拟系统和/或第二虚拟系统执行相应的操作。
本申请实施例的车辆的多媒体娱乐系统的控制方法，具有响应速度快的优点，提升车辆的使用体验。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (12)

  1. 一种车辆的多媒体娱乐系统，其特征在于，包括：
    仪表盘显示屏通信接口，用于为仪表盘显示屏提供显示信息；
    中控娱乐系统显示屏通信接口，用于为中控娱乐系统显示屏提供显示信息；
    片上系统，所述片上系统分别与所述仪表盘显示屏通信接口和所述中控娱乐系统显示屏通信接口相连，所述片上系统中配置有实现仪表盘功能的第一虚拟系统和实现中控娱乐系统功能的第二虚拟系统，所述第一虚拟系统通过所述仪表盘显示屏通信接口为仪表盘显示屏提供显示信息，所述第二虚拟系统通过所述中控娱乐系统显示屏通信接口为中控娱乐系统显示屏提供显示信息；
    控制器，所述控制器与所述片上系统相连，用于控制所述片上系统的运行状态。
  2. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，所述第一虚拟系统为RTOS操作系统，所述第二虚拟系统为Android操作系统。
  3. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，所述片上系统中还配置有服务操作系统，所述服务操作系统用于为所述第一虚拟系统和所述第二虚拟系统进行资源分配。
  4. 根据权利要求1-3任一项所述的车辆的多媒体娱乐系统，其特征在于，所述仪表盘显示屏通信接口以及所述中控娱乐系统显示屏通信接口包括串行和解串模块。
  5. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，还包括：
    多路图像通信接口，用于接收全景摄像头发送的多路图像信号，所述多路图像通信接口与所述片上系统相连，以根据所述多路图像信号生成全景影像，并将所述全景影像通过所述中控娱乐系统显示屏通信接口发送至所述中控娱乐系统显示屏。
  6. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，还包括：
    无线通信模块，所述无线通信模块分别与所述片上系统和所述控制器相连，所述无线通信模块用于在接收到移动终端发送的远程请求信号时，向所述控制器发送中断请求，以便所述控制器退出待机状态，并唤醒所述片上系统，以使所述片上系统由睡眠状态进入所述工作状态。
  7. 根据权利要求6所述的车辆的多媒体娱乐系统，其特征在于，所述无线通信模块为LTE模块。
  8. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，还包括：行车记录仪图像通信接口，用于接收行车记录仪采集到的图像信号，所述行车记录仪图像通信接口与所述片上系统相连。
  9. 根据权利要求1所述的车辆的多媒体娱乐系统，其特征在于，还包括：
    蓝牙音频模块，所述蓝牙音频模块与所述片上系统相连；
    音频处理模块，所述音频处理模块分别与所述蓝牙音频模块和所述片上系统相连。
  10. 根据权利要求9所述的车辆的多媒体娱乐系统，其特征在于，所述音频处理模块具有第一音频接口、第二音频接口、第三音频接口和第四音频接口，其中，所述第一音频接口用于接收来自所述片上系统发送的语音导航信号，第二音频接口用于与所述片上系统进行其它音频信号的交互，所述第三音频接口与所述蓝牙音频模块相连，以与所述蓝牙音频模块进行蓝牙音频信号的交互，所述第四音频接口用于接收麦克风发送的语音信号。
  11. 一种车辆，其特征在于，包括：根据权利要求1-10任一项所述的车辆的多媒体娱乐系统。
  12. 一种车辆的多媒体娱乐系统的控制方法，其特征在于，包括以下步骤：
    控制器检测触发信号；
    当检测到所述触发信号后，唤醒片上系统，以使所述片上系统根据用户指令控制第一虚拟系统和/或第二虚拟系统执行相应的操作。
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