CN214279162U - Car networking roadside unit of integrated MEC function - Google Patents

Abstract

The utility model relates to a car networking road side unit technical field discloses a car networking road side unit of integrated MEC function, include: the main control module is used for collecting, analyzing and processing real-time data of participants in the traffic system and sending the data to the V2X module; the V2X module is connected with the main control module and used for generating a V2X message set from data and communicating with the participants; the MEC module is connected with the main control module and used for processing data; this car networking roadside unit of integrated MEC function inside directly sets up the MEC module of being connected with V2X module, avoid setting up solitary MEC server in access network, the degree of difficulty of network deployment has been reduced, hardware cost, development cost, the product integration degree has been improved, the MEC module operation is in the network border position that is close to user terminal, can further reduce the transmission delay of C-V2X business, and the MEC module is equipped with a plurality of DDR3 and large capacity EMMC, can provide powerful calculation and memory capacity, improve user experience.

Description

Car networking roadside unit of integrated MEC function

Technical Field

The utility model relates to a car networking road side unit technical field, concretely relates to car networking road side unit of integrated MEC function.

Background

A Road Side Unit (RSU) is an important infrastructure in the car networking technology, and has functions of collecting basic information about Road conditions, assisting communication between vehicles, and the like. The car networking technology needs data transmission and low calculation delay in the process of guiding the vehicle to run, and a server located in a core network cannot meet the requirement, so that an MEC (Multi-access Edge Computing) device needs to be arranged, calculation is completed at the access network Edge of a road side unit, and the data transmission and calculation delay is reduced. In the prior art, an MEC server is usually arranged in an access network of a roadside unit, and this way needs to additionally arrange one or more MEC servers in the access network, which increases the difficulty of network deployment of the internet of vehicles and has higher hardware cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a car networking roadside unit of integrated MEC function, this roadside unit can solve the MEC server and cause the great, the higher problem of hardware cost of the network deployment degree of difficulty of car networking.

In order to achieve the above object, the present invention provides the following technical solutions:

an integrated MEC function vehicle networking roadside unit, comprising: the main control module is used for collecting, analyzing and processing real-time data of participants in the traffic system and sending the data to the V2X module; the V2X module is connected with the main control module and used for generating a V2X message set from data and communicating with the participants; and the MEC module is connected with the main control module and used for processing data.

In the present invention, preferably, the V2X module is connected to the main control module through a switch chip, and the switch chip has a plurality of PHYs.

In the present invention, preferably, the MEC module is equipped with several DDRs 3 and EMMC.

In the present invention, preferably, the V2X module includes a satellite positioning sub-module.

The utility model discloses in, it is preferred, still include wireless communication module, wireless communication module with host system connects.

The utility model discloses in, it is preferred, still include hardware security module, hardware security module with host system connects.

The utility model discloses in, it is preferred, still include AC/DC module and DC/DC module, the DC/DC module respectively with host system, V2X module, wireless communication module, exchange chip connect, the AC/DC module with the DC/DC module is connected.

The utility model discloses in, preferred, still include the POE module, the POE module with the DC/DC module is connected.

In the present invention, preferably, an anti-surge circuit is provided in the AC/DC module.

In the present invention, preferably, the DC/DC module includes a 1.8v submodule, a 3.3v submodule, a 3.8v submodule, a 4.2v submodule, and a 5v submodule.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an inside direct MEC module that sets up and be connected with V2X module of trackside unit, avoid setting up solitary MEC server in the access network, the degree of difficulty of network deployment has been reduced, the hardware cost, development cost, the product integration degree has been improved, the MEC module operation is in the network border position who is close to user terminal, can further reduce the transmission delay of C-V2X business, and the MEC module is equipped with a plurality of DDR3 and large capacity EMMC, can provide powerful calculation and memory capacity, improve user experience.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle networking roadside unit integrating the MEC function.

Fig. 2 is a circuit diagram of the main body portion of the V2X module.

Fig. 3 is a circuit diagram of the satellite positioning sub-module.

Fig. 4 is a circuit diagram of a switch chip.

Fig. 5 is a circuit diagram of a main body portion of a wireless communication module.

Fig. 6 is a circuit diagram of the AC/DC module and POE module body portion.

Fig. 7 is a circuit diagram of the 1.8v submodule.

Fig. 8 is a circuit diagram of the 3.3v submodule.

Fig. 9 is a circuit diagram of the 3.8v submodule.

Fig. 10 is a circuit diagram of the 4.2v submodule.

Fig. 11 is a circuit diagram of the 5v submodule.

In the drawings: the system comprises a main control module 1, a 2-V2X module, a 3-MEC module, a 4-switching chip, a 5-wireless communication module, a 6-hardware safety module, a 7-AC/DC module, a 701-anti-surge circuit, an 8-DC/DC module and a 9-POE 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 11, a preferred embodiment of the present invention provides a vehicle networking road side unit integrated with an MEC function, which includes a main control module, a V2X (vehicle to X) module and an MEC module, as shown in fig. 1.

In this embodiment, the main control module 1 may adopt a core control board integrated with a processing unit, for example, a development board adopting an ARM architecture, and may include hardware components such as a central processing unit, a memory, an input device, an output device, a data path/bus, and an external resource interface, so as to complete the work of collecting, analyzing, and processing real-time data information of participants in the traffic system, and sending data to the V2X module 2. The participants in the traffic system refer to devices having a signal sending function in the traffic system, such as an OBU (On board Unit), an MEC, an intelligent cone, a traffic signal lamp, and a radar.

The V2X module 2 is connected with the main control module 1, is a part directly communicating with participants such as OBUs, MECs, intelligent cone barrels, traffic lights and radars, can generate a V2X message set, and sends the V2X message set to the participants. The V2X module 2 is provided with an antenna, and uses a PC5 air interface to communicate, the information that the main control module 1 needs to send is sent through the V2X module 2, and the participant with receiving function will receive the signal sent by the V2X module 2. And a satellite positioning sub-module is further arranged in the V2X module 2, so that the GPS/BEIDOU positioning function can be realized, and high-precision position information can be provided for the realization of each application scene. The circuit diagram of the main part of the V2X module 2 is shown in fig. 2.

The MEC module 3 adopts a high-performance four-core processor, has rich on-chip resources, interfaces and high computational processing capability, is externally mounted with a plurality of DDR3 (a computer memory specification) memories, is equipped with a large-capacity emmc (embedded Multi Media card) memory and a power management chip, can process data from external equipment in real time, transmits the data to the V2X module 2, and realizes scene interaction through a PC5 interface.

The vehicle networking roadside unit of integrated MEC function of this embodiment inside directly sets up the MEC module 3 of being connected with V2X module 2, avoid setting up solitary MEC server in access network, the degree of difficulty of network deployment has been reduced, hardware cost, development cost, the product integration degree has been improved, MEC module 3 runs at the network border position that is close to user terminal, can further reduce the transmission delay of C-V2X business, and MEC module 3 is equipped with a plurality of DDR3 and large capacity EMMC, can provide powerful calculation and memory capacity, improve user experience, be provided with the satellite positioning submodule in the V2X module 2, it is convenient to the accurate location to the roadside unit, the circuit diagram of satellite positioning submodule is shown in FIG. 3.

The utility model discloses an in the embodiment, V2X module 2 is connected through switch chip 4 with host system 1, and switch chip 4 possesses a plurality of PHYs (Port Physical Layer) to outer, can directly expand a plurality of giga net gapes, and what PHY adopted in FIG. 1 is RJ45 net twine. This arrangement may facilitate communication between the MEC module 3 and the master control module 1 and external sensing devices. The circuit diagram of the switching chip 4 is shown in fig. 4.

The utility model discloses an in the embodiment, car networking road side unit of integrated MEC function still includes wireless communication module 5, and wireless communication module 5 is connected with host system 1. The wireless communication module 5 may adopt a common technology in current mobile communication, and in this embodiment, a 4G wireless communication module is taken as an example, and a 5G wireless communication module may also be adopted. The main control module 1 can be accessed into a network provided by a wireless communication operator through the wireless communication module 5, so that communication with users in the operator network is realized, and information transmission of the main control module 1 is more flexible and convenient. A circuit diagram of the main body portion of the wireless communication module 5 is shown in fig. 5.

The utility model discloses an in the embodiment, car networking road side unit of integrated MEC function still includes hardware security module 6(HSM, hardware security module), and hardware security module 6 is connected with host system 1. The hardware security module 6 is used for encrypting data sent by the main control unit and communicating with the V2X module 2 or an external access point of the wireless communication module through a single-path or double-path SPI. The hardware security module 6 is arranged, so that the encryption transmission of the unit data at the network side can be realized, and the data is safer.

The utility model discloses an in the embodiment, car networking roadside unit of integrated MEC function still includes AC/DC module 7 and DC/DC module 8, and DC/DC module 8 is connected with host system 1, V2X module 2, wireless communication module 5, exchange chip 4 respectively, and AC/DC module 7 is connected with DC/DC module 8. The AC/DC module 7 can convert the commercial power into direct current, and is a main power supply provider of the road side unit. Further, surge protection circuit 701 is provided in AC/DC module 7. The circuit diagram of the AC/DC module 7 is shown in fig. 6. The AC/DC module 7 can meet the requirements of high-temperature and low-temperature work and also meet the reliability requirements of surge, static electricity, electric fast transient pulse groups and the like. The DC/DC module 8 provides different voltage requirements for each chip and module, wherein the DC/DC module comprises a 1.8v submodule 801, a 3.3v submodule 802, a 3.8v submodule 803, a 4.2v submodule 804 and a 5v submodule 805, the voltage requirements of each part of the road side unit can be met, and if other requirements of the electricity voltage value exist in the road side unit, submodules of other voltage values can be added to meet the requirements. The circuit diagrams of the sub-modules of the DC/DC module 8 are shown in fig. 7 to 11.

The utility model discloses an in the embodiment, car networking roadside unit of integrated MEC function still includes POE (Power Over Ethernet, active Ethernet) module, and POE module 9 is connected with DC/DC module 8. In this embodiment, the circuits of the POE module 9 and the AC/DC module 7 are set to be the same circuit, as shown in fig. 6. POE module 9 is compatible with IEEE 802.3at, enabling power supply to the line side unit using ethernet lines, and POE module 9 directly outputs direct current, and thus can be directly connected to DC/DC module 8, while its input can be connected to the RJ45 interface of switching chip 4. The POE module 9 enables the road side unit to supply power through the ethernet cable without power cable wiring, thereby reducing the networking cost.

The working principle is as follows:

the utility model discloses a basic step of car networking roadside unit work of integrated MEC function is:

1. the road side unit is correctly connected according to the actual application scene, and the external equipment is connected to the road side unit through the Ethernet port;

2. the road side unit is electrified in an alternating current 220V or POE mode, so that the road side unit is ensured to operate correctly;

3. the MEC module 3 processes data from sensing equipment (such as radar, a camera, traffic lights and the like), and the MEC module 3 can fuse and analyze data collected by a plurality of road side units and vehicle-mounted sensors and provide real-time, accurate and reliable local calculation and analysis for a large amount of data;

4. the main control module 1 encrypts the received scene analysis data, decision data, coordinate data and the like through the hardware security module 6 and sends the encrypted data to the V2X module 2;

5. the V2X module 2 analyzes and processes the data information and generates a V2X message set, and implements information interaction of V2V (vehicle-to-vehicle), V2I (vehicle-to-infrastructure), V2P (vehicle-to-pedestrian), and V2P (vehicle-to-network) through the PC5 air interface.

6. The MEC and the roadside equipment can realize various scenes in a cooperative mode.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (10)

1. The utility model provides an integrated MEC function's car networking roadside unit, its characterized in that includes:

the main control module is used for collecting, analyzing and processing real-time data of participants in the traffic system and sending the data to the V2X module;

the V2X module is connected with the main control module and used for generating a V2X message set from data and communicating with the participants;

and the MEC module is connected with the main control module and used for processing data.

2. The vehicle networking roadside unit of claim 1, wherein the V2X module is connected with the master control module through a switch chip, and the switch chip has a plurality of PHYs.

3. A vehicle networking road side unit according to claim 2, wherein the MEC module is equipped with a number of DDRs 3 and EMMC.

4. The vehicle networking roadside unit of claim 3, wherein the V2X module comprises a satellite positioning sub-module.

5. The vehicle networking roadside unit of claim 4, further comprising a wireless communication module connected with the master control module.

6. The vehicle networking road side unit of claim 5, further comprising a hardware security module, wherein the hardware security module is connected with the master control module.

7. The vehicle networking roadside unit of claim 6, further comprising an AC/DC module and a DC/DC module, wherein the DC/DC module is respectively connected with the main control module, the V2X module, the wireless communication module and the switch chip, and the AC/DC module is connected with the DC/DC module.

8. The vehicle networking roadside unit of claim 7, further comprising a POE module, the POE module connected with the DC/DC module.

9. The vehicle networking roadside unit of claim 8, wherein an anti-surge circuit is disposed within the AC/DC module.

10. The vehicle networking roadside unit of claim 9, wherein the DC/DC module comprises a 1.8v submodule, a 3.3v submodule, a 3.8v submodule, a 4.2v submodule, and a 5v submodule.

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