The origin of the problem is as follows: while analyzing stock data, I thought it might be more convenient to import stock candlestick data into PowerBI, and then use stock code filters and time filters, compared to viewing historical trends in trading software. Thus, this topic was born. Unfortunately, the final path did not work … Read more
1. Introduction With the rapid development of global Industry 4.0 and smart manufacturing, Industrial Internet of Things (IoT) devices have become increasingly prevalent in various manufacturing and production environments. These devices enhance production efficiency, improve resource utilization, and strengthen monitoring and management through technologies such as sensing, communication, and intelligent processing. However, as the number … Read more
Working with new colleagues unfamiliar with Python for data analysis has truly made me feel “powerless”—a basic data cleaning task requires repeated explanations, and when mentioning Pandas or Matplotlib, they look completely lost. In fact, getting started with data analysis isn’t that difficult; it just lacks a clear guide that goes “from basics to practical … Read more
1. The Actual Value of AI Outbound Call Robots AI outbound call robots provide an efficient way for businesses to contact customers by automatically dialing phone numbers and simulating human conversations. Their core value lies in: Efficiency Improvement: Capable of handling thousands of calls per day, far exceeding the limits of manual outbound calls. Cost … Read more
My Phone is a ‘Graveyard of Information Fragments’ Last night before bed, I stared at the “Screen Time Statistics” on my phone screen—today’s screen time was 5 hours and 23 minutes, including 2 hours and 15 minutes on short videos, 1 hour and 40 minutes on social apps, and 1 hour and 28 minutes on … Read more
1. Introduction: Why Scrape Douban Books Top 250? In the age of information explosion, data is like a mine filled with countless treasures waiting for us to excavate. For those who love reading and data analysis, the Douban Books Top 250 list is undoubtedly a shining gold mine. As a highly influential cultural community in … Read more
I remember visiting a large manufacturing factory last year, where the factory manager pointed to a wall full of dashboards and said: “Look, we have over 200 machines, and it takes 3 people just to read the meters every day.” “But the most frustrating part is that despite having so many energy-saving devices installed, energy … Read more
Everyone, before learning Python, I always thought it was exclusive to programmers, who just code all day, and had nothing to do with ordinary people. However, after learning it, I found out that this thing is simply a “universal cheat tool” that opened the door to a new world for me! Why is Python so … Read more
Most of my categories are recorded while I learn, so they tend to be more like notes and somewhat rough. 01 — Theoretical Three Steps of Analysis Report Step One: Identify Our Business Needs As a job seeker, it is important to understand the market situation for Python, such as: application fields (software development, scientific … Read more
The Internet of Things (IoT) connects various elements in water conservancy infrastructure (such as water, equipment, and environment) through sensors, communication networks, and data analysis platforms, enabling real-time perception, precise monitoring, intelligent management, and automatic control, thereby fundamentally transforming traditional water management models. 1. Core Role: From “Passive Response” to “Proactive Intelligence” Traditional water management … Read more