Based on Unmanned Aerial Vehicles (UAV) and Wireless Sensor Networks (WSN),the three-tier architecture TUFSN (three-tier unmanned aerial vehicle farmland sensor network) consists of the SN-RN data collection layer, RN-UAV relay transmission layer, and UAV-DC mobile aggregation layer. Through Matlab simulation, it was found that the cache size range of the relay node (RN) is 3~13 … Read more
In the current rapid penetration of Internet of Things (IoT) wireless communication technology, the ability to perceive and respond to physical distances between people and objects, as well as between objects, has become key to enhancing the intelligence of devices and improving user interaction experiences. When a smart refrigerator detects a user approaching and actively … Read more
Ansible is a powerful and agentless IT automation platform. This article introduces some commonly used modules. Ansible has robust module capabilities, supporting various functions such as file management, system management, cloud computing (multi-cloud), networking, databases, Windows, source control, infrastructure, packaging, and more. For more details, please refer to the official page. Here, we select some … Read more
📁 Ansible Firefighting Hotline | Struggling with FTP Service Failures? One-Click Automated Diagnosis Turns You into a File Transfer Expert! Tired of blindly troubleshooting FTP service failures? Today, we bring you a comprehensive automated analysis solution for FTP service failures on RHEL8/9 & CentOS8/9, allowing you to say goodbye to the nightmare of manually typing … Read more
Enhancing Httprunner Test Cases: Declaration and Reference of Variables 1. Variables In HttpRunner, there is support for the declaration (variables) and reference (or{var}) mechanism. Variables can be defined using the variables keyword in both config and step, and can be referenced in test steps using or{var}. The difference is: Variables defined in config are global … Read more
1. Common HTTP Request Methods The core and commonly used methods are as follows: GET Purpose: Request the specified resource. It is only used to retrieve data and should not produce any “side effects” (such as modifying data). Characteristics: The request parameters are directly appended to the URL (query string), with length limitations, and will … Read more
Introduction In web development and daily web browsing, we often encounter various HTTP status codes. These status codes are responses from the server to client requests, providing important information about the request processing status. Below, we will introduce some common HTTP status codes and demonstrate their applications through code examples. 1. Informational Status Codes (1xx) … Read more
The door is open, but you can’t get in? Your website may be facing HTTPS blockage! Hello everyone, I am the technical steward of the Di Ping Wang style! Recently, many friends have reported: “Why can my website open with HTTP, but it fails with HTTPS?” Don’t panic! Today, I will guide you to the … Read more
We can think of the TCP/IP protocol as the “underlying operating system” of the internet—it serves as the “rulebook” for the operation of the internet, enabling countless devices worldwide (phones, computers, servers, routers) to communicate with each other as if they “speak the same language”. Why is TCP/IP Needed? Early computer networks had many different … Read more
“Assembly Language” 3rd Edition by Wang Shuang Chapter 12: Internal Interrupts (Page 251) Experiment 12: Writing the Handler for Interrupt 0 Write the handler for interrupt 0, so that when a division overflow occurs, the string “divide error!” is displayed in the center of the screen, and then return to DOS. Requirements: Carefully track and … Read more