CN113918496A

CN113918496A - PCIE-based vehicle-mounted 5G module interface circuit

Info

Publication number: CN113918496A
Application number: CN202111211911.5A
Authority: CN
Inventors: 张中华; 廖志明
Original assignee: Shenzhen Tvis Technology Co ltd
Current assignee: Shenzhen Tvis Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-11

Abstract

The invention provides a vehicle-mounted 5G module interface circuit based on PCIE, which comprises: the CPU, the 5G module and the 5G module are independently powered by a power supply and an M.2 socket, a PCIE bus of the CPU is connected to pins 41, 43, 47, 49, 53 and 55 in the M.2 socket, the 5G module is inserted into the M.2 socket, the PCIE bus of the CPU is communicated with a PCIE bus on a pin of the 5G module through the M.2 socket, and the 5G module is independently powered by the power supply and only supplies power to the 5G module. The invention realizes the support of the 5G module by utilizing the PCIE bus on the vehicle-mounted equipment, and gives full play to the characteristics of high bandwidth and low delay of the 5G network while giving consideration to stable operation.

Description

PCIE-based vehicle-mounted 5G module interface circuit

Technical Field

The invention relates to the field of 5G, in particular to a vehicle-mounted 5G module interface circuit based on PCIE.

Background

Because of the high traffic of the 5G network, the current 5G modules are all USB 3-enabled interfaces when using the high-speed network traffic provided by the 5G modules. As the USB interface is used, the upper computer is very easy to access when driving and using the 5G module, so that most of the 5G modules are used in the USB3 interface mode at present.

However, the USB interface has its disadvantages, the stability of the interface is not suitable for the vehicle-mounted device which is often in a vibration environment, and especially when transmitting data with a high bandwidth such as 5G, unstable transmission of data is easily generated, which results in a decrease in speed and an increase in delay, and the characteristics of the high bandwidth and the low delay of 5G cannot be fully exerted.

Disclosure of Invention

The invention provides a vehicle-mounted 5G module interface circuit based on PCIE, which is used for solving at least one technical problem.

In order to solve the above problem, an aspect of the present invention provides a PCIE-based on-vehicle 5G module interface circuit, including: the CPU, the 5G module and the 5G module are independently powered by a power supply and an M.2 socket, a PCIE bus of the CPU is connected to

pins

41, 43, 47, 49, 53 and 55 in the M.2 socket, the 5G module is inserted into the M.2 socket, the PCIE bus of the CPU is communicated with a PCIE bus on a pin of the 5G module through the M.2 socket, and the 5G module is independently powered by the power supply and only supplies power to the 5G module.

Preferably, an antenna feeder is directly led out of the 5G module and is connected to the shell connector of the equipment box.

The invention realizes the support of the 5G module by utilizing the PCIE bus on the vehicle-mounted equipment, and gives full play to the characteristics of high bandwidth and low delay of the 5G network while giving consideration to stable operation.

Drawings

Fig. 1 schematically illustrates a peripheral circuit schematic of an m.2 receptacle;

FIG. 2 schematically illustrates a circuit schematic of a 5G module individual power supply;

FIG. 3 schematically illustrates a circuit schematic of the 5GIO power supply;

fig. 4 schematically shows a circuit schematic of a SIM card module.

Detailed Description

The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.

The PCIE bus is a basic bus of the CPU core, has high bandwidth and stable interface, and is generally used for devices with high bandwidth and low latency, such as a high-speed video card. In order to stably and effectively use the 5G module in a vehicle-mounted environment and fully exert the characteristics of high bandwidth and low delay of the 5G network, the invention determines to use the PCIE bus technology.

As an aspect of the present invention, a PCIE-based vehicle-mounted 5G module interface circuit is provided, including: the technical scheme includes that the CPU (such as the Switzerland micro RK3399PRO), the 5G module independent power supply (U5MP2225GJ) and the M.2 socket are connected, a PCIE bus of the CPU is connected to

pins

41, 43, 47, 49, 53 and 55 in the M.2 socket, the 5G module is inserted into the M.2 socket, the PCIE bus of the CPU is communicated with the PCIE bus on the pin of the 5G module through the M.2 socket, and the 5G module independent power supply only supplies power to the 5G module.

Preferably, the 5G module is provided with a separate power supply connected to the

pins

2, 4, 70, 72 and 74 of the M.2 socket, the 5G module is plugged into the M.2 socket, and power is supplied to the 5G module from the

pins

2, 4, 70, 72 and 74 in the M.2 socket.

In the technical scheme, the 5G module is directly interacted with the CPU through the PCIE bus in the CPU independently, no other branch exists in the middle, the resources of the PCIE bus can be fully used, meanwhile, independent power supply is adopted, the power supply is stable, and the data of the 5G module are driven and transmitted through the PCIE bus, so that the vehicle can operate normally and stably all the time when the 5G network is used on the vehicle, and the 5G network can operate at high bandwidth and low time delay all the time.

The vehicle-mounted edge cloud equipment needs to perform a large amount of operations, and meanwhile, results of the large amount of operations need to be transmitted to the platform in real time for display. Due to the adoption of the technical scheme, the wireless transmission method and the wireless transmission device can be used on the vehicle-mounted edge cloud equipment, and the wireless transmission of data is realized by using the 5G network, so that the real-time performance of a large amount of data of the vehicle-mounted edge cloud equipment can be ensured when the data are transmitted to the platform.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vehicle-mounted 5G module interface circuit based on PCIE which characterized in that includes: the CPU, the 5G module and the 5G module are independently powered by a power supply and an M.2 socket, a PCIE bus of the CPU is connected to pins 41, 43, 47, 49, 53 and 55 in the M.2 socket, the 5G module is inserted into the M.2 socket, the PCIE bus of the CPU is communicated with a PCIE bus on a pin of the 5G module through the M.2 socket, and the 5G module is independently powered by the power supply and only supplies power to the 5G module.

2. The PCIE-based vehicle-mounted 5G module interface circuit of claim 1, wherein an antenna feeder is directly led out from the 5G module, and the antenna feeder is connected to a device box shell connector.