1. Core Fault Analysis of ECU Anomalies 1. Program Corruption: The “Amnesia” of Digital Neurons Typical Triggers: Unofficial ECU tuning (e.g., aggressive first/second-order program flashing leading to checksum failure) CAN bus signal conflicts (devices occupying diagnostic protocol IDs, such as permanent devices on the OBD interface) OTA upgrade interruptions (voltage fluctuations causing packet loss rate … Read more
The latest consumer survey report on children’s smartwatches released by the Jiangsu Provincial Consumer Rights Protection Committee shows that nearly half of consumers are dissatisfied with the quality of children’s smartwatches.Among them, over 20% of consumers have encountered issues with inaccurate positioning, and more than 40% of consumers reported unstable signals and poor call quality. … Read more
Smart home (smart home, home automation) refers to a residential platform that utilizes integrated wiring technology, network communication technology, security technology, automatic control technology, and audio-video technology to integrate facilities related to home life. It constructs an efficient management system for residential facilities and family schedules, enhancing home security, convenience, comfort, and artistry, while achieving … Read more
Click on “The Voice of Waves” to make your voice heard Smart Home Opening a New Era of Intelligent Living Smart home is, in short, a networked and intelligent home control system that integrates automation control systems, computer network systems, and network communication technologies. It uses the residence as a carrier to connect various devices … Read more
Apache HTTP Server Path Traversal Vulnerability (CVE-2021-41773) 1. Vulnerability Overview CVE-2021-41773 is a high-risk path traversal vulnerability present in Apache HTTP Server version 2.4.49. Attackers can exploit this vulnerability to bypass the server’s path access restrictions and read or execute arbitrary files on the target server. If the server is configured to allow the execution … Read more
Interview Background Hello everyone, I am Xia Yi. Today I will continue to share my interview experience at Kuaishou, this is the 9th question. Kuaishou First Interview (48min) Experience: Interviewer: Please introduce yourself briefly. I: I will briefly outline my work, highlighting the key points (understanding the importance of selection). Interviewer: Can you talk about … Read more
Source | Embedded Intelligence Bureau Sometimes we see colleagues discussing memory-related issues in embedded development. Today, I would like to share the principles of dynamic module loading in embedded development. 1. Design Philosophy and Core Advantages of Dynamic Module Loading The Linux dynamic module loading mechanism (Loadable Kernel Modules, LKMs) is not merely a technical … Read more
Cryptography: A Powerful Library for Encryption Algorithms! Hello everyone! Today I want to introduce you to a powerful encryption library – cryptography. As a Python developer who is particularly concerned about data security, I highly recommend this library. It is like a Swiss Army knife in the field of cryptography, providing simple interfaces for various … Read more
The historical development of cryptographic algorithms is a reflection of the continuous struggle and progress of human intelligence and technology. Below is a detailed chronological introduction: 1. Classical Cryptography (Before 5th Century) Caesar Cipher (1st Century BC) The earliest monoalphabetic substitution cipher, which encrypts by shifting the alphabet by a fixed number of positions (e.g., … Read more
Understanding Java Security: Implementing Data Encryption Protection with Symmetric and Asymmetric Encryption Algorithms In the digital world, our data is as precious as our own treasures. Imagine you have a diary filled with secrets that you certainly wouldn’t want others to casually peek at. In the realm of computing, data is no different; we need … Read more