Various communication protocols are used in automotive ECUs. Previous articles introduced several serial communication methods, such as: Understanding the SPI Protocol: Principles, Architecture, and Applications Understanding the I2C Communication Protocol Understanding the Differences Between I2C and SPI Buses Chassis Domain Control: Have You Heard of AK and PSI5? In this article, we will introduce another … Read more
In the previous issue, we introduced that MQTT packets consist of a fixed header, a variable header, and a payload, as well as some common concepts in MQTT packets, such as variable-length integers and properties.Are you familiar with MQTT Control Packets?Now, we will further introduce the composition of each packet based on practical usage. First, … Read more
Many people are confused about Wi-Fi and WLAN, often thinking that these two terms express the same meaning. In fact, they are like the relationship between “fruit” and “apple”; one is a general category, while the other is a specific type. Next, let’s enhance our understanding through a principle-level analysis! One is like a “stage … Read more
Feral Druids are a must-have class for every raid leader due to their powerful functionalities such as battle resurrection, mana regeneration, increased hit chance, and critical strike bonuses. Today, I will provide a detailed guide on how to maximize your Feral Druid’s score from scratch. I hope this offers a different perspective.1. Preparation Phase1. Talents: … Read more
(Add a star to BoLe Online to see classic articles) Source: Ruheng Link: https://juejin.im/post/6844903490595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) consists of a series of network protocols that form the foundation of the Internet and is the core protocol of the Internet.The reference model based on TCP/IP divides the protocols … Read more
“Solving the Factory Communication Lag Problem, Improving Equipment Response Speed by 80%! A Deep Dive into Profinet vs. Modbus” (Suspenseful Opening) Hey folks! Today, let’s talk about a problem that drives engineers crazy—suddenly, the equipment in the workshop goes “silent,” and the PLC and HMI are performing a “disconnection drama.” Have you ever experienced that … Read more
“PLC Network Optimization: Three Tricks to Perfect Network Structure for Smooth Data Transmission!” Hello everyone! Are you still going crazy over PLC networks lagging like a PowerPoint presentation? Every time there’s a data delay, it feels like waiting for takeout? Today, we are going to tackle this “network speed anxiety” in the industrial sector! ▶ … Read more
1. Introduction to HTTP HTTP (Hypertext Transfer Protocol) is an application layer protocol used for transmitting hypertext (such as HTML files) over the network. It is based on the TCP/IP protocol and serves as the foundation for data communication on the World Wide Web. Below, we will detail HTTP from multiple aspects. 2. Development History … Read more
In internet communication, TCP (Transmission Control Protocol) and HTTP (Hypertext Transfer Protocol) are both key protocols, but their roles and applicable scenarios are completely different. Many people may be confused: 1. Since TCP can already transmit data, why do we need HTTP? 2. When should we use TCP directly, and when should we use HTTP? … Read more
