Hello everyone, good evening~ Today, I will introduce how many communication methods are available for Siemens PLC. Siemens PLC is a brand that many people frequently use, so today I will share the various ways to achieve communication with Siemens PLC in upper computer development. Here, we can explain from three aspects: serial communication, Ethernet … Read more
Author｜Liao Fan Chun Qiu Source｜Zhihu When it comes to machine learning, everyone thinks of Python. Indeed, Python offers a wealth of machine learning libraries, such as sklearn, pytorch, tensorflow, etc. Many C++ libraries also provide Python interfaces, like dlib, which makes it very convenient to use. Although Matlab is not as open as Python, it … Read more
Introduction Recently, Siemens PLC prices have surged significantly, causing quite a stir in the industrial control sector. Not only have prices increased, but there are also shortages, forcing many to change their plans. It is said that chip replacements have been completed recently, and supply is expected to resume soon, along with price adjustments. This … Read more
Artificial Intelligence (AI) functionality has become essential in various mobile devices. Especially in 2024, AI PCs are being launched into the market, which can even be referred to as the “Edge Device AI Era.” This time, we will review the main AI PCs and processors released in the second half of 2024. The semiconductor industry … Read more
Translated from https://www.praetorian.com/blog/reversing-and-exploiting-embedded-devices-part-1-the-software-stack Author Elvis Collado Posted Thursday, June 02, 2016, 11:17 AM CDT by In the past few months, I have been traveling to guide people on how to exploit vulnerabilities in embedded devices. Just slides are not sufficient to convey enough information, so I have written everything down for better knowledge digestion. The … Read more
This article is from “Control Engineering China” (CONTROL ENGINEERING China) March 2017 issue, originally titled: Seamless Integration of IoT with Existing Systems As the number of IoT devices increases, connectivity becomes the biggest barrier. Open Platform Communications (OPC) and Data Distribution Service (DDS) provide two methods for seamless integration of systems, and the choice of … Read more
With the continuous development of the construction industrialization in recent years, the term precast concrete (PC) has been frequently mentioned. Many places are now vigorously promoting PC factories, and the entire industry is advocating the development of PC. However, I believe there are some misconceptions; in fact, PC is only a part of building industrialization. … Read more
Siemens PLC Database Interface Development: Seamless Integration of Industrial Data and Enterprise Information Systems Storing PLC data into a database may seem simple, but there are many pitfalls. After years of working on automation projects, I’ve encountered this kind of requirement the most. Today, I will discuss this topic and share my practical experience and … Read more
Vulnerability Description: There is a stack overflow vulnerability in the sub_25E04 function of the upnpd file. The length is not checked during strcpy, causing an overflow and allowing for a ROP attack to achieve command execution. Version: 1.0.2.134 Vulnerability Analysis and Reproduction1. Firmware Simulation Using qemu system simulation: qemu startup: qemu-system-arm -M vexpress-a9 -kernel vmlinuz-3.2.0-4-vexpress … Read more
“Transparent Metal” Polycarbonate Polycarbonate (abbreviated as PC) is a polymer that contains carbonate groups in its molecular chains. Depending on the structure of the ester groups, it can be divided into various types including aliphatic, aromatic, and aliphatic-aromatic polycarbonates. Among these, the mechanical properties of aliphatic and aliphatic-aromatic polycarbonates are relatively low, which limits their … Read more