Exploring Global Automotive Technologies: Patent Edition (Part 1)

FisheyeMultiNet Real-time Multi-task Deep Learning Network for Surround View Autonomous Parking System

Background:

With advancements in deep learning and computer vision algorithms, autonomous driving has gained significant attention, and automatic parking is one of the application scenarios of autonomous driving. It is a low-speed, unorganized, and complex behavior that requires 360-degree near-field sensing of the vehicle's surroundings. The complexity of autonomous driving systems poses many limitations on hardware, prompting researchers to propose a

2025-01-09

Performance Comparison of ARM Cortex-M Processors

1. Performance Metrics of Processors

There are many performance metrics used to evaluate CPUs, and the values obtained from different testing standards may vary based on the focus of the performance being tested. Below are two classic testing standards widely used in the embedded industry.

1.1 Dhrystone Standard

Dhrystone is a benchmark testing program proposed by Reinhold P. Weicker in 1984, primarily aimed at testing the performance of integer and logical operations of processors.

The Dhrystone program was initially released in Ada language, later

2025-01-09

Understanding Microkernel Operating Systems and RTOS

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Source | Blog Garden

The structure of the microkernel operating system developed in the late 1980s. Because it can effectively support multiprocessor operation, it is very suitable for distributed system environments.

Most of the currently popular operating systems that support multiprocessor operation have adopted the microkernel structure, such as the Mach OS developed by Carnegie Mellon University, which belongs to the microkernel structure operating system; and the widely

2025-01-09

Differences Between MCU and SoC

A reader asked an interesting question: the difference between virtual MCU and virtual SoC. Essentially, this is the difference between MCU and SoC.We have introduced MCU in several of our past contents, please refer to our previous articles.Next, let's briefly discuss the differences between MCU and SoC.

System on Chip (SoC) is a relatively new term with many interpretations and definitions that change over time, whereas the term Microcontroller Unit (MCU) has a clear definition and scope, refined from decades of

2025-01-09

Innovative Circuit Design: Create an Arduino Uno Without PCB Skills

Do you want to play with circuits but don't know how to design a PCB? You can! Before PCBs existed, components were connected directly (as imagined by Teacher Su). In fact, even when we have PCB design issues that require rework, we often use various jumper wires to make our circuits work.

So, even if your PCB design is flawless, occasionally DIYing a circuit without a PCB is also a meaningful endeavor.

Today, let's take a look at a project done by

2025-01-09

MIPI A-PHY: The Cornerstone of Automotive Systems and IoT

MIPI Alliance recently announced that it has completed the long-term development of the MIPI A-PHY v1.0 physical layer communication protocol. This is a serialiser-deserialiser (SerDes) physical layer specification primarily used for automotive applications. The specification is currently under member review and is expected to be officially adopted within the next 90 days. In fact, prior to this, MIPI already had a complete set of communication protocols widely used in the camera and display fields. D-PHY, C-PHY, and M-PHY are capable

2025-01-09

Exploring Technical Solutions for Vehicle-Cloud Integration Using Rust on Android

Greptime's vehicle-cloud integration solution has disrupted the traditional collaborative model, adopting a more cost-effective and efficient approach to meet current market demands. GreptimeDB Edge, as the core component, is tailored specifically for the in-vehicle environment.This article aims to thoroughly discuss the experiences and lessons learned during the development process using the Rust language on the Android platform.

Cross Compilation

In the vehicle scenario, GreptimeDB Edge is usually deployed as a service in the Android environment, requiring us to compile it into an

2025-01-09

Is the Minisforum NPB7 Mini PC with 13th Gen Core i7-13700H Worth It Starting at 3599 Yuan?

Recently, Minisforum launched the mini PC NPB7 equipped with the 12th Gen Core i5-12450H and i7-12650H processors, featuring an ultra-simple DIY design, dual network ports, and an incredible starting price of 2199 Yuan (for the barebones version). However, their CPUs have simplified E-cores and integrated graphics, resulting in overall performance that is relatively average. If you're looking for better overall performance, the

2025-01-09

Advantages of Discrete ARM+FPGA Compared to ZYNQ SoC

Table of Contents

1. What are the advantages of ARM+FPGA architecture?

2. What are the benefits of discrete ARM+FPGA?

2.1 More interface resources

2.2 Better HMI experience

2.3 Higher ARM main frequency

2.4 Lower development difficulty

3. Free evaluation board trial

4. Product documentation download

1. What are the advantages of ARM+FPGA architecture?

Compared to pure ARM or pure FPGA devices, the ARM+FPGA architecture can bring combined advantages in performance, cost, and power consumption. Each performs its own role, leveraging the unique advantages of its architecture, such as:

(1)

2025-01-09

Should You Look Down on Arduino When Using STM32?

Which is more powerful, Arduino or STM32? Many electronics enthusiasts face a dilemma when choosing between Arduino and STM32, unsure of which to use. Arduino has always been popular, but STM32 has more interfaces, stronger performance, and is faster.

Features of Arduino and STM32

Arduino:

Arduino tends to focus on creativity, simplifying specific hardware operations. Its functions and syntax are very simple and quite "foolproof." Most Arduino boards

2025-01-09

Year: 2025

1. Performance Metrics of Processors

1.1 Dhrystone Standard

Cross Compilation

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