WO2020147467A1

WO2020147467A1 - Vehicle-mounted communication apparatus

Info

Publication number: WO2020147467A1
Application number: PCT/CN2019/124523
Authority: WO
Inventors: 高春禹
Original assignee: 华为技术有限公司
Priority date: 2019-01-17
Filing date: 2019-12-11
Publication date: 2020-07-23
Also published as: CN209710082U

Abstract

Disclosed is a vehicle-mounted communication apparatus used for avoiding addition of a large number of signal transmission apparatuses to a traffic system, and reducing costs. The vehicle-mounted communication apparatus comprises: a control unit, a positioning unit, a bus unit, and a C-V2X communication unit based on cellular communication technology and for information exchange between a vehicle and an external environment, wherein the C-V2X communication unit is connected to the control unit.

Description

Vehicle communication device

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201920082054.5, and the invention title is "vehicle communication device" on January 17, 2019, and the entire content is incorporated into this application by reference.

Technical field

This application relates to the technical field of communication equipment, in particular to a vehicle-mounted communication device.

Background technique

In order to improve the safety and intelligence of the transportation system, technologies related to intelligent transportation systems are gradually emerging.

In the prior art, dedicated short-range communication (DSRC) units are used to realize communication in an intelligent transportation system, including communication processes between vehicles, vehicles and roads, and vehicles and pedestrians.

The communication in the intelligent transportation system based on the DSRC unit, due to the short transmission distance, needs to densely set up signal transmitting devices in the transportation system, and the cost is high.

Summary of the invention

The embodiment of the present application provides an in-vehicle communication device, which is used to avoid adding a large number of signal transmitting devices in a traffic system and reduce costs.

The first aspect of the embodiments of the present application provides a vehicle-mounted communication device, including: a control unit, a positioning unit, a bus unit, and a vehicle-to-outside information exchange C-V2X communication unit based on cellular communication technology; the C-V2X communication The unit is connected to the control unit.

The in-vehicle communication device provided by the embodiment of the application is provided with a C-V2X communication unit connected to the control unit. The C-V2X communication unit can send real-time information of the vehicle, and can also obtain information sent by other vehicles, infrastructure, pedestrians and the Internet. Realize the communication between vehicles, vehicles and infrastructure, vehicles and pedestrians, vehicles and the Internet. Since the C-V2X communication unit can utilize the existing wireless base station equipment, it can reduce the cost compared to the communication based on the DSRC unit that requires additional signal transmission devices.

In a possible implementation of the first aspect, the C-V2X communication unit is used to communicate with at least one of a vehicle, an infrastructure, a pedestrian, and the Internet.

The vehicle-mounted communication device provided in the embodiment of the present application provides specific objects and possible combinations of communication with the C-V2X communication unit, which increases the feasibility of the solution.

In a possible implementation manner of the first aspect, the bus unit includes a vehicle-mounted Ethernet ETH unit and/or a CAN network unit connected to the control unit.

In the vehicle-mounted communication device provided by the embodiment of the application, the bus unit may be a vehicle-mounted Ethernet ETH unit, or a CAN network unit, or include both an ETH unit and a CAN network unit. Several forms of bus unit are provided, which enhances the variety of solutions Sex.

In a possible implementation manner of the first aspect, the Ethernet rate of the ETH unit is 100M or 1000M.

In the vehicle-mounted communication device provided by the embodiment of the present application, two commonly used Ethernet rates of the ETH unit are provided, which enhances the feasibility of the solution.

In a possible implementation of the first aspect, the vehicle-mounted communication device further includes a wireless network access device NAD unit connected to the control unit.

The vehicle-mounted communication device provided by the embodiment of the present application may further include an NAD unit. Since the NAD unit can communicate with a wireless base station, the functions of the vehicle-mounted communication device are enriched.

In a possible implementation of the first aspect, the vehicle-mounted communication device further includes a wireless fidelity WIFI unit connected to the control unit.

The vehicle-mounted communication device provided by the embodiment of the present application may further include a WIFI unit, and the WIFI unit may be used for the vehicle-mounted communication device to communicate with other wireless terminal devices.

In a possible implementation manner of the first aspect, the vehicle-mounted communication device further includes a Bluetooth BT unit connected to the control unit.

The vehicle-mounted communication device provided by the embodiment of the present application may further include a BT unit, which can also be used for the vehicle-mounted communication device to communicate with other wireless terminal devices, which increases the diversity of solution implementation.

In a possible implementation manner of the first aspect, the in-vehicle communication device further includes a universal serial bus (USB) interface connected to the control unit.

The vehicle-mounted communication device provided by the embodiment of the present application may further include a universal serial bus USB interface connected with the control unit. The USB interface can be used to connect with other devices for data transmission, which increases the diversity of the vehicle-mounted communication device's functions.

In a possible implementation manner of the first aspect, the positioning unit includes a global navigation satellite system GNSS for providing positioning information.

The vehicle-mounted communication device provided in the embodiment of the present application provides possible implementation forms of the positioning unit, and increases the feasibility of the solution.

In a possible implementation of the first aspect, the vehicle-mounted communication device further includes a power supply unit connected to the control unit.

According to the vehicular communication device provided by the embodiment of the present application, the vehicular communication device may further include a power supply unit, which can provide electrical energy for each unit.

In a possible implementation manner of the first aspect, the control unit includes a micro control unit MCU.

In the vehicle-mounted communication device provided by the embodiment of the present application, the control unit of the vehicle-mounted communication device may be an MCU, and a specific implementation form of the control unit is provided.

It can be seen from the above technical solutions that the in-vehicle communication device provided by the embodiments of the present application can realize communication between vehicles, between vehicles and infrastructure, between vehicles and pedestrians, and between vehicles and the Internet by setting up C-V2X communication units. Communication. Since the C-V2X communication unit can utilize the existing wireless base station equipment, it can reduce the cost compared to the communication based on the DSRC unit that requires additional signal transmission devices.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural diagram of an embodiment of a vehicle-mounted communication device in an embodiment of the application;

Fig. 2 is a schematic structural diagram of another embodiment of a vehicle-mounted communication device in an embodiment of the application;

FIG. 3 is a schematic structural diagram of another embodiment of a vehicle-mounted communication device in an embodiment of the application.

detailed description

The embodiments of the present application provide a vehicle-mounted communication device, which is used to implement communication between vehicles, between vehicles and infrastructure, between vehicles and pedestrians, and between vehicles and the Internet.

Please refer to FIG. 1, which is a schematic structural diagram of an embodiment of a vehicle-mounted communication device in an embodiment of the application.

The vehicle-mounted communication device provided by the embodiment of the present application includes a control unit, a positioning unit respectively connected to the control unit, and a cellular vehicle to everything (C-V2X) communication unit based on cellular communication technology.

Among them, the control unit can be a microcontroller unit (MCU), or a central processing unit (CPU), etc., which can be used to complete basic control functions such as the core control of the vehicle communication device; the positioning unit is connected to the MCU, It is used to provide accurate positioning information for the vehicle-mounted communication device; the bus unit is connected with the MCU and is used to provide the vehicle-mounted communication device with basic data of the vehicle, such as vehicle speed, driving state signals, etc. The C-V2X communication unit is connected to the MCU to complete the vehicle to vehicle (V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), and Communication between the vehicle and the Internet (vehicle to network, V2N).

C-V2X is a vehicle to everything (V2X) technology defined by 3GPP (3rd Generation partnership project) based on cellular communication and can be applied to the fourth generation (4 ^th generation, 4G) mobile communication system. or fifth generation (5 ^th generation, 5G) mobile radio communication system, a new (new radio, NR) system, or future mobile communication system, which is not limited in the present application. The V2X system based on cellular communication can use existing wireless network facilities to realize V2X information interaction, adapt to more complex security application scenarios, and meet low latency, high reliability and bandwidth requirements.

V2V can be used to exchange information between vehicles, and a typical application is for anti-collision safety systems between vehicles.

V2I is used for communication between vehicles and roads and even other infrastructure, such as vehicles and infrastructure such as traffic lights or roadblocks. Vehicles can obtain road management information such as traffic light signals.

V2N is a widely used form of Internet of Vehicles. Its main function is to enable vehicles to connect to a cloud server through a mobile network, thereby applying the navigation, entertainment, and anti-theft functions provided by the cloud server.

V2P can be used to provide safety warnings for pedestrians or non-motorized vehicles.

The vehicle-mounted communication device provided by the embodiment of the present application can realize communication between vehicles, between vehicles and infrastructure, between vehicles and pedestrians, and between vehicles and the Internet by setting a C-V2X communication unit. Since the C-V2X communication unit can utilize the existing wireless base station equipment, it can reduce the cost compared to the communication based on the DSRC unit that requires additional signal transmission devices.

Please refer to FIG. 2, which is a schematic structural diagram of another embodiment of the vehicular communication device in the embodiment of the application.

The vehicle-mounted communication device provided by the embodiment of the present application includes an MCU, a positioning unit connected to the MCU, a bus unit, and a C-V2X communication unit. Optionally, the positioning unit may be a global navigation satellite system (GNSS) unit connected to the MCU to provide vehicle positioning information.

Optionally, the bus unit in the vehicle-mounted communication device provided by the embodiment of the present application may further include a vehicle-mounted Ethernet ETH unit and/or a CAN network unit connected to the control unit. The ETH unit can be used to complete data exchange with the vehicle-mounted Ethernet and read some information of the vehicle body, such as vehicle speed and driving status signals. Optionally, the Ethernet transmission rate of the ETH unit may be 100 megabits per second or 1000 megabits per second, and the specific rate of Ethernet is not limited here. The CAN network unit is used to receive and feedback the basic data of the vehicle, such as vehicle speed and driving status signals. In this embodiment, the specific form and transmission rate of the bus unit are not limited.

Optionally, the in-vehicle communication device provided in the embodiment of the present application may further include a wireless network access device NAD unit connected to the MCU. The NAD unit may be used to communicate with wireless base stations, including 4G wireless base stations or 5G wireless base stations. The NAD unit can be set separately or integrated with the C-V2X communication unit. The specific form of the NAD unit is not limited here. Please refer to Figure 3. Since the NAD unit usually has abundant hardware resources, the ETH unit, CAN network unit, GNSS unit, WIFI unit, BT unit or USB interface can be connected to the MCU through the NAD unit, and all kinds of data are processed by the NAD unit Distribute again. That is, the ETH unit, CAN network unit, GNSS unit, WIFI unit, BT unit or USB interface can be directly connected to the MCU, or can be connected to the MCU through the NAD unit, and the specific connection form is not limited here.

Optionally, the vehicular communication device provided by the embodiment of the present application may further include at least one of wireless communication modules such as a WIFI unit, a BT unit, and a ZigBee unit connected to the MCU, a WIFI unit, a BT unit, and a ZigBee unit It can be used to communicate with other wireless terminal devices, which can include various handheld devices with wireless communication functions, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment (user equipment, UE), mobile station (MS), terminal equipment (terminal equipment), such as mobile phones, tablet computers, smart watches, etc. The embodiments of the present application do not limit the specific technology and the specific device form adopted by the terminal device.

Optionally, the vehicle-mounted communication device provided by the embodiment of the present application may further include a USB interface connected to the MCU. The USB interface is mainly used to connect to other devices for data transmission, for example, perform data transmission on the vehicle-mounted communication device through the USB interface. Upgrade etc.

Optionally, the vehicular communication device provided in the embodiment of the present application may further include a power supply unit connected to the MCU, which is not shown in FIG. 2, and the power supply unit may supply power to each unit of the vehicular communication device.

Optionally, the in-vehicle communication device provided in the embodiment of the present application may also include an input and output device connected to the MCU, such as a touch screen, a display screen, a keyboard, etc., which are mainly used to receive data input by a user and output data to the user.

The vehicle-mounted communication device provided by the embodiment of the present application combines vehicle body bus technology, wireless communication technology and V2X communication technology. It can realize communication between vehicles, vehicles and infrastructure, vehicles and pedestrians, and vehicles and the Internet. The following is introduced in conjunction with specific application scenarios.

The vehicle-mounted communication device can obtain vehicle status information, such as driving speed, braking status, and steering angle, from vehicle sensors through the CAN network unit or the ETH unit body bus. In addition, the vehicle-mounted communication device can also download map information through the NAD unit, and obtain the location information of the vehicle through the positioning unit. Combined with the C-V2X communication unit, the V2X communication technology is used to complete the information transmission of V2X, V2I, V2P, and V2N. At the same time, the vehicle status information, map and vehicle position information can be sent to other wireless terminal devices through the WIFI unit or BT unit. For interaction, other wireless terminal devices can be, for example, cars, mobile phones, tablets, etc., which are not limited here.

Examples of application scenarios: a vehicle collision, emergency braking, or loss of control of the vehicle on a certain location on the map. The vehicle-mounted communication device can obtain the current status information of the vehicle in time through the CAN network unit or the ETH unit. The vehicle-mounted communication device can also notify the surrounding pedestrians, transportation facilities and vehicles through the C-V2X communication unit. It should be noted that the pedestrians here carry The equipment that contains the C-V2X communication unit. The transportation facilities and vehicles here are all equipment with the C-V2X communication unit. In addition, the vehicle-mounted communication device can also use the NAD unit to notify the emergency rescue center to achieve early warning or emergency rescue.

The vehicle-mounted communication device provided by the embodiments of the present application can realize communication between vehicles, between vehicles and infrastructure, between vehicles and pedestrians, and between vehicles and the Internet through body bus, wireless communication technology and C-V2X communication unit. . Since the C-V2X communication unit can utilize the existing wireless base station equipment, it can reduce the cost compared with the communication based on the DSRC unit that requires additional signal transmission devices.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software function unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code .

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A vehicle-mounted communication device, characterized by comprising: a control unit, a positioning unit, a bus unit, and a C-V2X communication unit for vehicle-to-outside information exchange based on cellular communication technology;

The C-V2X communication unit is connected to the control unit.
The in-vehicle communication device according to claim 1, wherein the C-V2X communication unit is used to communicate with at least one of a vehicle, an infrastructure, a pedestrian, and the Internet.
The vehicle-mounted communication device according to claim 1 or 2, wherein the bus unit includes a vehicle-mounted Ethernet ETH unit and/or a CAN network unit connected to the control unit.
The vehicle-mounted communication device according to any one of claims 1 to 3, wherein the vehicle-mounted communication device further comprises a wireless network access device NAD unit connected to the control unit.
The vehicle-mounted communication device according to any one of claims 1 to 4, wherein the vehicle-mounted communication device further comprises a wireless fidelity WIFI unit connected to the control unit.
The vehicle-mounted communication device according to any one of claims 1 to 5, wherein the vehicle-mounted communication device further comprises a Bluetooth BT unit connected to the control unit.
The vehicle-mounted communication device according to any one of claims 1 to 6, wherein the vehicle-mounted communication device further comprises a universal serial bus (USB) interface connected to the control unit.
The vehicular communication device according to any one of claims 1 to 7, wherein the positioning unit comprises a global navigation satellite system GNSS for providing positioning information.
8. The vehicle-mounted communication device according to any one of claims 1 to 8, wherein the vehicle-mounted communication device further comprises a power supply unit connected to the control unit.
The vehicle-mounted communication device according to any one of claims 1 to 9, wherein the control unit comprises a micro control unit MCU.