How to Access the 192.168.1.1 Login Page

How to Access the 192.168.1.1 Login Page

Why can’t I open the router’s settings interface at http://www.192.168.1.1? What should I do if I can’t access the page when setting up the router via http://www.192.168.1.1 on my phone? Answer: The correct login IP address for the router should be 192.168.1.1, not “http://www.192.168.1.1” which is an incorrect address. You can remove the “http://www.” prefix … Read more

Overview of Common Linux Commands

Overview of Common Linux Commands

Click the blue text above to follow us Overview This article discusses the relationship and role of the system kernel and the Bash interpreter, how to correctly execute Linux commands, and common troubleshooting methods. Experienced operations and maintenance personnel can appropriately combine commands and parameters to make Linux character commands more flexible while relatively reducing … Read more

Touchscreen Repair: Fault Analysis

Touchscreen Repair: Fault Analysis

1. Why is the touchscreen inaccurate? a. It may be that the reflective stripes around the screen of the acoustic touchscreen are covered with dust after a period of use. Please wipe it with a dry, soft cloth, then turn off the power, restart the computer, and recalibrate. b. It is possible that the reflective … Read more

Common Faults and Solutions for LCD and DLP Projectors

Common Faults and Solutions for LCD and DLP Projectors

Common Faults and Solutions for LCD and DLP Projectors:Projectors are essential electronic devices for our daily office work, and they are indispensable for company meetings and training sessions. However, electronic devices can encounter various faults. What should we do if our projector has minor issues during use? Below, Hongchao Intelligent Security summarizes some common small … Read more

How to Use a Digital Multimeter: A Step-by-Step Guide

【Four Techniques to Efficiently Use a Digital Multimeter】 1. Determine if a Circuit or Device is Live The AC voltage range of a digital multimeter is very sensitive; it can display even small induced voltages. Based on this feature, it can be used as a test pencil. The method is as follows: set the multimeter … Read more

Methods to Check Motor Condition with a Multimeter

Methods to Check Motor Condition with a Multimeter

Click on the blue text to follow me! The motor is the most common driving power device in our production and daily life. For example, common toys, fans, water pumps, etc., all have motors. Apart from those that are obviously burnt out, sometimes the motor’s exterior does not show visible damage. How can we determine … Read more

Introduction and Troubleshooting of RS-485 Communication Interface for Siemens S7-200 PLC

Introduction and Troubleshooting of RS-485 Communication Interface for Siemens S7-200 PLC

Click on the above “ Technical Training ”, select “Pin to Top” 130,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. Introduction In recent years, computer control has been rapidly promoted and popularized. Industrial control computers, PLCs, frequency converters, touch screens, robots, and flexible manufacturing systems are widely … Read more

Ping Issue Analysis

Ping Issue Analysis

Ping Issue Analysis What is Ping Ping is a commonly used network management command and is also part of a communication protocol that belongs to the TCP/IP suite, suitable for Windows, Linux, and Unix. It checks whether the network is smooth or the network connection speed (time) is normal based on the reply feedback results. … Read more

Issues with RS485 Repeaters and Profibus Signal Voltage

Issues with RS485 Repeaters and Profibus Signal Voltage

Search on WeChat Technical Training There have been persistent issues with Profibus communication at a certain brewery. Previously, SIAS and on-site engineers had re-planned the entire Profibus network topology, but there were still instances of DP slave devices dropping out, occurring multiple times in a short period, severely affecting the factory’s normal production. Therefore, the … Read more

Common Issues and Solutions for Playwright Automation Testing Framework

The automation course has covered the Playwright framework, and many students are eager to try it out. As the saying goes, practice makes perfect. However, some issues have arisen during practice, and I have compiled them here for those in need. Remember to like and bookmark if you find it helpful! 01Installation Issues Problem Description: … Read more