CN212009332U

CN212009332U - Domain controller with double CPU (Central processing Unit) architecture

Info

Publication number: CN212009332U
Application number: CN202020678743.5U
Authority: CN
Inventors: 孙博苗; 田锋; 付玉堂; 李智华; 陈晓钿; 陆津池; 曾广慧; 关锐; 李良淼; 金勇�; 徐康; 靳云昭; 黄龙杰
Original assignee: Inbo Supercomputing Nanjing Technology Co Ltd
Current assignee: Inbo Supercomputing Nanjing Technology Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-11-24
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a domain controller with double CPU framework, belonging to the technical field of automobile electronics, comprising a control unit module, a computing unit module, a data exchange module, a power supply module, a clock module, an interface module, a storage module and an extension module, wherein the computing unit module is interconnected with the data exchange module and the control unit module; the front-view camera is arranged, the data of the front-view camera is collected by the camera of the driver, the driving state of the driver, whether the driver is tired, whether the driver calls the phone or not, whether the driver smokes or not and other unsafe driving behaviors are mainly collected, and the road condition data outside the vehicle is collected and stored by the two front-view cameras, so that the front-view camera can be used for identifying information such as the distance between vehicles and a guideboard of the road and can also be used as a driving recorder; the three front, rear, left and right cameras collect and store information around the automobile body, and are used for functions of 360-degree panorama, automatic parking and the like, so that the reliability, safety and comfort of automobile driving can be improved.

Description

Domain controller with double CPU (Central processing Unit) architecture

Technical Field

The utility model relates to an automotive electronics technical field specifically is a domain controller of two CPU framework.

Background

At present, with the improvement of living standard of people and the development of electronic technology, the automobile keeping amount is increased year by year, and the safety problem brought by the automobile keeping amount is also outstanding; in order to solve the safety problem, an advanced driving assistance system ADAS proposed recently senses the surrounding environment by using various sensors mounted on the vehicle, collects, analyzes and processes data, and makes related warning information to enhance the safety and comfort of the user in the driving process.

The realization of advanced driving assistance function requires huge data processing and extremely high performance requirements on a CPU and the like, so that the cost of the current design system is high; meanwhile, safe backup of data and flexibility of each function lack corresponding design; therefore, the design provides a novel design scheme based on a multi-CPU architecture, the functions of APA autonomous parking, automatic cruising, 360 panoramic view and the like can be realized, and the safe backup of data can be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a domain controller of two CPU framework to solve inconvenient automatic cruise among the above-mentioned background art, can't discern whether driver is tired to drive etc. function, can not carry out the redundant safe problem of backing up to data simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a domain controller with a double-CPU architecture comprises a control unit module, a computing unit module, a data exchange module, a power supply module, a clock module, an interface module, a storage module and an expansion module, wherein the computing unit module is interconnected with the data exchange module and the control unit module, and the computing unit module consists of a CPU0 and a CPU 1.

Preferably, the CPU1 camera interface unit interconnects with external cameras, with the CPU1 connecting at least 2 cameras.

Preferably, the interface module is connected to a CAN bus interface of the motor vehicle.

Preferably, the storage module is connected with the peripheral through a USB or SDIO interface.

Preferably, the expansion module can be networked by external WIFI module or 4G module.

Preferably, the interface module is an interface of a camera, a display, a millimeter wave radar and an ultrasonic radar.

Compared with the prior art, the beneficial effects of the utility model are that: the domain controller with the double CPU architectures is provided with a front-view camera, wherein the data of the front-view camera is collected by a camera of a driver, mainly for collecting unsafe driving behaviors such as whether the driver is in a driving state, whether fatigue driving is caused, whether a call is made, whether smoking is caused and the like, and the two front-view cameras are arranged for collecting and storing road condition data outside the vehicle, so that the domain controller can be used for identifying information such as a distance between vehicles and a guideboard of a road and can also be used as a driving recorder; the design scheme uses a double-CPU framework, different CPUs realize different functions, the flexibility of design is increased, the calculation pressure of a single CPU is reduced, and the cost is reduced; data redundancy backup can be performed between the CPU0 and the CPU1, and the safety is higher; in addition, data exchange is carried out between the CPU and the MCU through an Ethernet or other double-link mode, data can be shunted, and transmission efficiency is higher.

Drawings

FIG. 1 is a detailed block diagram of the present invention;

FIG. 2 is a detailed block diagram of the present invention;

fig. 3 is a detailed block diagram of the present invention.

In the figure: the device comprises a control unit module, a computing unit module, a data exchange module, a power supply module, a clock module, an interface module, a storage module and an extension module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, can be connected inside two elements or can be in an interaction relationship between the two elements, and the specific meaning of the terms in the present invention can be understood according to specific situations by those skilled in the art

Referring to fig. 1-3, the present invention provides a technical solution: a domain controller with double CPU architecture comprises a control unit module, a computing unit module, a data exchange module, a power supply module, a clock module, an interface module, a storage module and an extension module; the computing unit module is interconnected with the data exchange module and the control unit module, the computing unit module is composed of a CPU0 and a CPU1, and the CPU0 and the CPU1 can use the same model or different models of different manufacturers.

Referring to fig. 1-3, the CPU1 camera interface unit is interconnected with external cameras, and the CPU1 is connected with at least 2 cameras and can transmit camera data to the CPU 1.

Referring to fig. 1-2, the interface module is connected to a CAN bus interface of the vehicle, and is configured to obtain data of the speed and the state of the vehicle lights of the vehicle; the storage module is connected with the peripheral through a USB or SDIO interface and is used for storing video data, alarm information, system LOG LOGs and the like.

Referring to fig. 1 and 3, the expansion module may be networked with an external WIFI module or a 4G module, and upload data to the mobile terminal, where the uploaded data includes route information of vehicle driving, driving state information of a driver, vehicle state safety information, and the like; the interface module is an interface of a camera, a display, a millimeter wave radar and an ultrasonic radar.

The working principle is as follows: firstly, a computing unit consists of a CPU0 and a CPU1, wherein the CPU1 is externally connected with at least two cameras, one camera is used for fatigue driving detection, the camera captures a state picture of a driver, the CPU1 performs algorithm computing processing on the captured information, information such as whether the driver is fatigue driving, driving to make a call, driving to smoke and the like can be obtained, if violation behaviors are captured, the CPU1 gives an alarm and informs an MCU through an Ethernet or other line, and if necessary, related parking operation is performed on automobile driving; the other camera is used for front road detection; detecting information such as road conditions, signboards, vehicle distances and the like, and informing the information to the MCU and the CPU 1; the CPU0 is externally connected with a camera, an ultrasonic wave radar and a millimeter wave radar; the main functions of the device are as follows: an automatic parking APA function; the data of the ultrasonic radar and the camera are analyzed and processed, corresponding driving judgment is made, then the driving judgment is transmitted to the MCU through the Ethernet or other line in the figure 2, and the MCU operates the automobile according to the data of the CPU0, so that the automatic parking function is realized; a secondary cruise ACC function; processing data of the millimeter wave radar, fusing road condition information sent by the CPU1, information such as vehicle speed sent by the MCU and the like with information of the millimeter wave radar camera, making relevant execution operation information and sending the execution operation information to the MCU for execution; the computing unit uses a double-CPU architecture and is realized by different CPUs; different functions relieve the calculation pressure of the CPU in the previous design, and meanwhile, relevant data redundancy backup can be carried out between the PCU0 and the CPU1, so that the safety is stronger.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A domain controller with double CPU architecture comprises a control unit module, a computing unit module, a data exchange module, a power supply module, a clock module, an interface module, a storage module and an extension module, and is characterized in that: the computing unit module is interconnected with the data exchange module and the control unit module, and consists of a CPU0 and a CPU 1.

2. The domain controller of a dual-CPU architecture according to claim 1, wherein: the CPU1 camera interface unit is interconnected with external cameras, and the CPU1 is connected with at least 2 cameras.

3. The domain controller of a dual-CPU architecture according to claim 1, wherein: the interface module is connected with a CAN bus interface of the automobile.

4. The domain controller of a dual-CPU architecture according to claim 1, wherein: the storage module is connected with the peripheral through a USB or SDIO interface.

5. The domain controller of a dual-CPU architecture according to claim 1, wherein: the expansion module can be networked by external WIFI modules or 4G modules.

6. The domain controller of a dual-CPU architecture according to claim 1, wherein: the interface module is an interface of a camera, a display, a millimeter wave radar and an ultrasonic radar.