Important Tips: Read This Three Times! Nowadays, everyone has Wi-Fi at home, but if the speed is slow, it can be a headache. Besides the slow internet speed itself, there are other factors that can affect the speed. Wi-Fi transmits via short waves, so its coverage area is quite limited. If you … Read more
Source: | Hardware and Software IntegrationAuthor: | ChaobowxEditor’s Note: Although the upper-level network protocols can be dazzling, the underlying hardware and software processing can actually be simply divided into three parts: Hardware and Software Interface: Completes the interaction of network data packets between CPU software and NIC hardware, such as EFA. Network Packet Processing: Completes … Read more
When it comes to how the “East Data West Calculation” strategy is a grand chess game, we must mention data centers. A data center, abbreviated as IDC, stands for Internet Data Center. The reason it is not directly referred to as “DC” is mainly to avoid confusion with Direct Current. Moreover, current data centers are … Read more
The SCADA group is used to bridge physical and virtual ports. The physical port, RS-232 serial port, connects to the local control center, while the virtual port, Virtual-Serial, transmits services to the remote terminal unit through PW. Within the SCADA group, it supports data broadcasting from the physical port to multiple virtual ports, and the … Read more
This article introduces the fundamentals of the LoRaWAN protocol from a technical perspective, divided into four parts: overview, MAC message format, regional parameters, and network access. Advanced topics such as MAC commands, Class B, ADR, and gateways will be covered in the next article. 1. Overview LoRaWAN stands for LoRa Wide Area Network, which is … Read more
This introductory article is used for internal team training and has been publicly released after some content has been omitted. Author: twowinter. Please credit the author when reproducing this article. This article is a popular science introduction to LoRaWAN. You have seen countless superficial LoRaWAN articles in your social circles, and it’s time to dive … Read more
This article is compiled based on reports from Huicong Machinery Network (http://www.machine.hc360.com) and others. Please “read the original text” for more details. Many applications have adopted chips using LoRa technology but have not utilized the LoRaWAN network protocol. Some of this is due to the low number of application points and small scale, making the … Read more
LoRa has officially become an international standard for the Internet of Things. As of December 2021, over 225 million LoRa end nodes and more than 2.7 million LoRa-based gateways have been deployed globally, covering 171 countries and regions. LoRaWAN is a communication protocol and system architecture designed to achieve long-range communication networks using LoRa. It … Read more
For more quality interview questions and study notes, visit KamaCoder Notes:https://notes.kamacoder.com Today’s recommended quality notes: https://notes.kamacoder.com/questions/500005 If asked by an interviewer, “What are the common HTTP status codes? What do they mean?“, how should we respond? Brief Answer The ten most frequently encountered HTTP status codes are as follows: 200: OK, indicates that the request … Read more
Detailed Explanation of HTTP Protocol: The Communication Magic Behind the Web What is HTTP? HTTP (HyperText Transfer Protocol) is one of the most commonly used application layer protocols on the Internet, forming the foundation of the World Wide Web. Every time you enter a URL, click a link, or submit a form in your browser, … Read more