【Introduction】Anyone working as an electrician knows that when equipment suddenly shuts down, the most frustrating task is troubleshooting external faults: measuring a bunch of sensors, solenoids, and wiring repeatedly, checking from the power supply to the load, only to find after half an hour that it was a broken wire on the proximity switch. This … Read more
Click the blue text to follow us Turbines, as widely used rotating machinery, play a critical role in various fields such as power generation, aerospace, and shipping. The stability and reliability of their operation directly relate to the safety and efficiency of the entire production system. The introduction of vibration sensors provides strong technical support … Read more
Abstract: PLC system failures can lead to significant losses. Rapidly locating and resolving issues is a core competency for engineers. This article systematically introduces practical tools such as LED status light diagnostics, online diagnostics, and Trace tracking functions using Siemens S7-1200/1500 PLC and TIA Portal as examples, establishing an efficient fault troubleshooting methodology. No matter … Read more
An Infrared Thermal Imaging Method for Circuit Board Component Troubleshooting Xudong Song, Chao Liu, Liang Song, Jun Liu (Dalian Jiaotong University, School of Intelligent Engineering, Dalian, Liaoning 116028) Abstract: To detect internal faults in circuit board components, an infrared thermal imaging method for troubleshooting circuit board components is proposed. First, a network model called LGC-Net … Read more
Introduction This issue introduces a method for bearing fault diagnosis based on multi-resolution mel analysis using 3DCNN. The general idea is to use Mel frequency spectrum analysis to convert one-dimensional fault data into three-dimensional data (as for how to achieve this, it is not convenient to disclose here!) and then input it into the 3DCNN … Read more
Communication systems have very high stability requirements, with system availability reaching 99.999% (i.e., interruptions of no more than 5 minutes per year). A significant amount of effort is required to validate stability during testing. This article analyzes an abnormal reboot case on a Linux platform for communication systems, providing methods and operations for fault diagnosis. … Read more
Non-contact · Panoramic Temperature Measurement · Intelligent Diagnosis — Infrared Technology Redefines Fault Prediction and Health Management of Electronic Devices Application in R&D Stage (1) Thermal Design Verification Real-time observation ofPCBboardthermal distribution uniformity, optimizing component layout (2) Heat Dissipation Scheme Evaluation Comparing the effects of different heat dissipation schemes (heat sinks/thermal grease/fans), quantifying temperature rise … Read more
“The other day, I took on a repair job; the PLC fault light was on. I pretended to be busy all day, and when everyone left at night, I rebooted the PLC and pocketed 2000. Hehe…” That night, during a dinner gathering, it was anything but a casual dinner; everyone raised their glasses and chatted … Read more
1 CPU Abnormality: When a CPU abnormality alarm occurs, check all devices connected to the internal bus of the CPU unit. The specific method is to replace the potentially faulty units one by one to identify the faulty unit and take appropriate action. 2 Memory Abnormality: When a memory abnormality alarm occurs, if it is … Read more
Many people encounter situations where the touch screen becomes unusable due to faults while using it. This is mainly because the touch screen is a relatively precise device, and its open usage nature leads to high usage frequency and varying user skill levels, resulting in frequent faults. Below are some common faults and maintenance methods … Read more