CN110611517A - Vehicle-mounted terminal and vehicle with same - Google Patents

Vehicle-mounted terminal and vehicle with same Download PDF

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Publication number
CN110611517A
CN110611517A CN201810612280.XA CN201810612280A CN110611517A CN 110611517 A CN110611517 A CN 110611517A CN 201810612280 A CN201810612280 A CN 201810612280A CN 110611517 A CN110611517 A CN 110611517A
Authority
CN
China
Prior art keywords
module
vehicle
mounted terminal
apu
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810612280.XA
Other languages
Chinese (zh)
Inventor
严伟
朱俊炜
许广宏
黄凯兵
李军亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Original Assignee
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC General Motors Corp Ltd, Pan Asia Technical Automotive Center Co Ltd filed Critical SAIC General Motors Corp Ltd
Priority to CN201810612280.XA priority Critical patent/CN110611517A/en
Publication of CN110611517A publication Critical patent/CN110611517A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Navigation (AREA)

Abstract

The invention provides a vehicle-mounted terminal, which comprises an MCU module at the bottom layer, an APU module at the upper layer and a public storage module, wherein the MCU module at the bottom layer ensures the time constraint and reliability of analysis and acquisition of data at the bottom layer by running a real-time system, and comprises a singlechip, acquires data through a CAN bus and issues a control instruction to a vehicle; the APU module of the upper layer corresponds to the development and data processing of an application layer by running an Android system based on an ARM architecture; and the MCU module and the APU module share and exchange data through the common storage module. The vehicle-mounted terminal provided by the invention can meet the requirements of the vehicle-mounted terminal on reliability and high efficiency.

Description

Vehicle-mounted terminal and vehicle with same
Technical Field
The invention relates to the field of electrical equipment systems of vehicles, in particular to a vehicle-mounted terminal for vehicle remote monitoring and control and a vehicle with the vehicle-mounted terminal.
Background
With the popularity of the concept of internet +, many industries are upgrading the traditional industry by using internet platforms, hope to create a new ecological chain, and the automobile industry is no exception. Wherein "internet +" the corresponding internet car of concept is characterized by: the internet becomes infrastructure, and intelligent operating system fuses the whole car from the bottom, and the data can carry out the high in the clouds interaction. Currently, internet automobiles are only the most mature and practical intelligent automobile technology, which can provide functions such as remote vehicle information display, remote control of vehicles, etc. for the owner of the automobile.
The vehicle-mounted terminal with the vehicle-mounted operating system is used as an important core part in the intelligent automobile, and the reliability and the efficiency of the Internet automobile are determined by the architecture and the functional design of the vehicle-mounted terminal. The prior patents and products have the problem of insufficient coordination between stability and high efficiency.
For example, chinese patent application publication No. 104932856a discloses an in-vehicle terminal that uses a DPS chip as a core processor of the in-vehicle terminal. The scheme has the advantages of high real-time performance and low price. However, due to its own structure, the DPS chip has limited processing capability, single data interface, and short function, which is not enough to provide rich functions.
For another example, chinese patent application publication No. 104932869a discloses an intelligent vehicle-mounted terminal embedded software platform. The vehicle-mounted terminal is based on an open ARM cortex xA9 series processor, and a Linux system is mounted on the processor to serve as a core processor of the vehicle-mounted terminal. The scheme has good expansibility and can be used for developing rich application layers. Meanwhile, the scheme can provide a good man-machine interaction interface and is beneficial to the use of users.
However, the Linux system is designed according to the objective of a time-sharing system to achieve better average performance of the system, and emphasizes balancing response time among processes to ensure fair CPU time occupation. It is usually a time-sharing scheduling algorithm with fixed time slices, the kernel cannot be preempted, and the behavior of real-time systems depends more on complex unpredictable situations. These principles do not meet the requirements of short response times and deterministic execution behavior of real-time systems. Therefore, the scheme can not meet the requirement of real-time performance, can not process the vehicle bottom data in real time, and can not realize the reliability of remote control.
Disclosure of Invention
The invention aims to provide a vehicle-mounted terminal which can meet the requirements of the vehicle-mounted terminal on reliability and high efficiency.
Therefore, the invention provides the following technical scheme in one aspect:
a vehicle-mounted terminal comprises an MCU (micro controller Unit) module at the bottom layer, an APU (assisted Processing Unit) module at the upper layer and a public storage module; the MCU module of the bottom layer is configured to ensure the time constraint and reliability of analysis and acquisition of bottom layer data by running a Real-time operating system (RTOS), and comprises a singlechip, a CAN bus, a Controller Area Network (CAN) bus and a controller, wherein the MCU module of the bottom layer is configured to acquire data and issue a control instruction to a vehicle; the APU module of the upper layer is configured to correspond to the development and data processing of an application layer by running an Android system based on an ARM architecture; and the MCU module and the APU module share and exchange data through the common storage module.
Further, according to the vehicle-mounted terminal provided by an embodiment of the present invention, data sharing and exchange are performed between the MCU module and the APU module through a data buffer area set in the common storage module.
Further, according to the vehicle-mounted terminal provided by an embodiment of the present invention, the APU module in the upper layer is connected to the camera module.
Further, according to the vehicle-mounted terminal provided by an embodiment of the present invention, the APU module in the upper layer is connected to the positioning module. Wherein the positioning module includes but is not limited to a GPS module, a beidou satellite positioning module, and the like.
Further, according to the vehicle-mounted terminal provided by an embodiment of the present invention, the APU module in the upper layer is connected to the network module, and performs data exchange with an external server through the network module. Wherein the network module includes but is not limited to a 3G/4G/5G network module, a wifi module, and the like.
Further, according to an embodiment of the present invention, the vehicle-mounted terminal is provided, wherein the APU module of the upper layer is connected to the bluetooth module.
Further, according to the vehicle-mounted terminal provided by an embodiment of the present invention, the APU module in the upper layer is connected to the display module. The display module may specifically include a touch screen display module, so as to simultaneously implement the input and display functions.
Further, according to the vehicle-mounted terminal provided by one embodiment of the present invention, the MCU module in the bottom layer is connected to a sensor, and the sensor is configured to collect vehicle data and transmit the collected data to the MCU module.
Further, according to an embodiment of the present invention, the vehicle-mounted terminal further includes a power module, connected to a vehicle-mounted power supply of a vehicle in which the vehicle is located, for supplying power to the MCU module and the APU module.
Another aspect of the present invention provides a vehicle provided with the vehicle-mounted terminal according to any one of the above technical solutions.
The beneficial effects of the invention include: the vehicle-mounted terminal provided by one aspect of the invention adopts a heterogeneous dual-core based architecture, comprises two parts, namely a Micro Control Unit (MCU) at the bottom layer and an Acceleration Processing Unit (APU) at the upper layer, and can meet the requirement of real-time performance and provide rich interfaces and functions through division and cooperation. Therefore, the method can meet the requirements of high-performance data processing application and meet the requirements of real-time performance and stability.
Drawings
Fig. 1 is a schematic logical structure diagram of an in-vehicle terminal according to an embodiment of the present invention.
The reference numerals in fig. 1 are explained as follows.
MCU module 10 10 CAN bus 11
Sensor with a sensor element 12 APU module 20
Positioning module 21 Camera module 22
Network module 23 Display module 24
Bluetooth module 25 Server 26
Common memory module 30 Power supply module 40
Vehicle-mounted power supply 50
Detailed Description
The following describes in further detail a technical solution of a vehicle-mounted terminal according to an aspect of the present invention with reference to the accompanying drawings and embodiments.
Referring to fig. 1, the vehicle-mounted terminal according to an embodiment of the present invention includes an MCU module 10, an APU module 20, a common storage module 30, and a power module 40.
Wherein, the MCU module 10 and the APU module 20 share and exchange data through the common storage module 30. Specifically, the MCU module 10 and the APU module 20 can directly share data by using the shared memory provided by the common storage module 30, thereby further improving the efficiency of the system. The power module 40 is connected to a vehicle power supply 50 and supplies power to the MCU module 10 and the APU module 20.
Further, compared with the vehicle-mounted terminal developed based on the single-core structure in the prior art, the vehicle-mounted terminal related to the invention adopts a heterogeneous dual-core architecture. Specifically, it is two parts including an MCU module 10 of the bottom layer and an APU module 20 of the upper layer.
Wherein, the MCU module 10 of bottom CAN select the singlechip for use and come data acquisition and carry out and assign control command to the vehicle through connecting CAN bus 11, guarantees time constraint nature and the reliability of bottom data analysis and collection through operation real-time system (RTOS), simultaneously because the singlechip CAN support abundant peripheral hardware, consequently CAN be according to the place the follow-up demand at terminal, external multiple sensor 12 or electrical equipment. Such as air quality sensors, video collectors, to meet various usage requirements or data collection requirements.
The APU module 20 at the upper layer may be an ARM development board for transplanting an Android system, which is dedicated to application layer development and data processing. Due to the inherent advantages of processing data such as images and positioning information in the Android system, some corresponding functional modules are connected with the APU module 20 at the upper layer, such as, but not limited to, the positioning module 21, the camera module 22, the network module 23, the display module 24, the bluetooth module 25, and the like.
Specifically, the positioning module 21 and the camera module 22 are loaded in the upper APU module 20, so as to facilitate subsequent data processing. Further, since the Android system provides a 3G/4G/5G network service by default, optimizes the communication process thereof, and supports Bluetooth and wifi, it is also convenient to load the network module 23 and the Bluetooth module 25 thereon, and through the network module 23, data exchange with an external server 26 can be further performed. The display module 24 is loaded to provide a display function and a man-machine interface, and if a touch screen is selected, an input function can be provided together.
Furthermore, the Android system has a good man-machine interaction interface and rich application expansion, and provides firm basic support for the diversity of platform functions of the vehicle-mounted terminal. However, the Andorid system is not high in stability and real-time performance, so that only the APU module 20 at the upper layer runs.
The vehicle-mounted terminal provided by one aspect of the invention adopts a heterogeneous dual-core based architecture, comprises two parts, namely a Micro Control Unit (MCU) at the bottom layer and an Acceleration Processing Unit (APU) at the upper layer, and can meet the requirement of real-time performance and provide rich interfaces and functions through division and cooperation. Therefore, the method can meet the requirements of high-performance data processing application and meet the requirements of real-time performance and stability.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.

Claims (10)

1. The vehicle-mounted terminal is characterized by comprising an MCU module at the bottom layer, an APU module at the upper layer and a public storage module; wherein
The MCU module of the bottom layer is configured to ensure the time constraint and reliability of analysis and acquisition of bottom layer data by operating a real-time system, and comprises a singlechip, acquires data through a CAN bus and issues a control instruction to a vehicle;
the APU module of the upper layer is configured to correspond to the development and data processing of an application layer by running an Android system based on an ARM architecture; wherein
And the MCU module and the APU module share and exchange data through the common storage module.
2. The vehicle-mounted terminal according to claim 1, wherein the MCU module and the APU module share and exchange data via a data buffer provided by the common storage module.
3. The vehicle-mounted terminal according to claim 1, wherein the APU module of the upper layer is connected with a camera module.
4. The vehicle-mounted terminal of claim 1, wherein the APU module of the upper layer is connected with the positioning module.
5. The vehicle-mounted terminal of claim 1, wherein the APU module of the upper layer is connected to the network module and exchanges data with the external server through the network module.
6. The vehicle-mounted terminal of claim 1, wherein the APU module of the upper layer is connected with a Bluetooth module.
7. The vehicle-mounted terminal of claim 1, wherein the APU module of the upper layer is connected with the display module.
8. The vehicle-mounted terminal according to claim 1, wherein the bottom layer MCU module is connected with a sensor, and the sensor is used for collecting vehicle data and transmitting the collected data to the MCU module.
9. The vehicle-mounted terminal according to claim 1, further comprising a power module connected to a vehicle-mounted power supply of a vehicle in which the vehicle is located, for supplying power to the MCU module and the APU module.
10. A vehicle, characterized in that the vehicle is provided with the in-vehicle terminal according to any one of claims 1 to 9.
CN201810612280.XA 2018-06-14 2018-06-14 Vehicle-mounted terminal and vehicle with same Pending CN110611517A (en)

Priority Applications (1)

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CN201810612280.XA CN110611517A (en) 2018-06-14 2018-06-14 Vehicle-mounted terminal and vehicle with same

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Application Number Priority Date Filing Date Title
CN201810612280.XA CN110611517A (en) 2018-06-14 2018-06-14 Vehicle-mounted terminal and vehicle with same

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Publication Number Publication Date
CN110611517A true CN110611517A (en) 2019-12-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469787A (en) * 2020-04-30 2020-07-31 长城汽车股份有限公司 Host system for vehicle and vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102800196A (en) * 2012-08-27 2012-11-28 上海亿径智能科技有限公司 Taxi dispatching system and method thereof
CN202624112U (en) * 2012-03-15 2012-12-26 延锋伟世通电子科技（上海）有限公司 Wireless control device of in-car subsystems
CN203811809U (en) * 2013-12-12 2014-09-03 东莞市科维电子科技有限公司 Multimedia navigation system based on Android system
CN205121315U (en) * 2015-10-29 2016-03-30 山东农业大学 Intelligence big -arch shelter control system based on tall and erect system of ann
CN106184077A (en) * 2016-09-09 2016-12-07 重庆戴普思科技有限公司 A kind of vehicle data acquisition system based on ANDROID platform
CN108132896A (en) * 2018-01-17 2018-06-08 西安闻泰电子科技有限公司 Data transmission method and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202624112U (en) * 2012-03-15 2012-12-26 延锋伟世通电子科技（上海）有限公司 Wireless control device of in-car subsystems
CN102800196A (en) * 2012-08-27 2012-11-28 上海亿径智能科技有限公司 Taxi dispatching system and method thereof
CN203811809U (en) * 2013-12-12 2014-09-03 东莞市科维电子科技有限公司 Multimedia navigation system based on Android system
CN205121315U (en) * 2015-10-29 2016-03-30 山东农业大学 Intelligence big -arch shelter control system based on tall and erect system of ann
CN106184077A (en) * 2016-09-09 2016-12-07 重庆戴普思科技有限公司 A kind of vehicle data acquisition system based on ANDROID platform
CN108132896A (en) * 2018-01-17 2018-06-08 西安闻泰电子科技有限公司 Data transmission method and device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111469787A (en) * 2020-04-30 2020-07-31 长城汽车股份有限公司 Host system for vehicle and vehicle

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Application publication date: 20191224