Today, let’s talk about a smartwatch recommended by a fan, the Vivo Watch 3. In terms of decorative functionality, this smartwatch is quite satisfactory and looks good. This smartwatch is currently available in the second-hand market for around $200. In addition to standard smartwatch features, it supports an app market with about thirty to forty … Read more
Recently, I attended the 36th Great Wall Cardiology Conference in Beijing, where I witnessed Huawei’s latest health features for smartwatches. I must say, I was truly amazed! From being a simple “step counter” to now becoming a “doctor on your wrist,” smartwatches have undergone a qualitative leap. The health guardian on your wrist: no longer … Read more
Cite this article JIN Zengwang, JIANG Lingyang, DING Junyi, et al. A Review of Research on Industrial Control System Security [J]. Netinfo Security, 2025, 25(3): 341-363. Background Introduction Industrial Control Systems (ICS) are widely used in industrial and critical infrastructure sectors, encompassing various control systems that play a crucial role in modern industrial production. Industrial … Read more
In this article, we will discuss the usage of PLC (Programmable Logic Controller) contacts, specifically focusing on how to choose between normally open and normally closed configurations. This choice is crucial in various safety protection scenarios. Understanding the differences between normally open and normally closed contacts is essential for effective PLC programming and ensuring safety … Read more
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In the daily management of small parking lots, manually counting parking spaces is not only inefficient but also often leads to issues such as “allowing cars in after full capacity” and “delayed notifications for available spaces”. By using an increment/decrement counter combined with sensors and a three-color light system, we can achieve automatic +1 for … Read more
01 After years of programming, I have increasingly realized a truth: the program is not wrong; the issue lies with the site. You think the equipment is lagging because of a logic error in the program? You think the PLC is executing slowly due to nested loops in the code? That’s too naive. Most of … Read more
JZGKCHINAIndustrial Control Technology Sharing Platform Introduction With the continuous development of industrial automation, PLCs (Programmable Logic Controllers) play an indispensable role in the manufacturing industry. Their high reliability, ease of programming, and control characteristics have led to widespread application across various sectors. As information technology continues to advance, more and more PLC engineers are beginning … Read more
Expansion of Inputs/Outputs in the S7-200 Series PLC Core Concept: Modular Expansion The S7-200 PLC adopts amodular structure for expansion. Its basic unit (CPU module) comes with a fixed number of I/O points (referred to asbase I/O). When these I/O points are insufficient, dedicatedexpansion modules can be connected through the expansion interface on the right … Read more
Click the blue text to follow us In the current era of rapid integration between the digital economy and intelligent manufacturing, warehouse logistics is quickly transitioning from a “labor-intensive” model to a “data-driven” one. The increasing complexity of order structures, higher inventory turnover requirements, and rising labor costs have made the inefficiencies, errors, and lack … Read more