Click the "C Language and CPP Programming" above, select "Follow/Pin/Star the public account" Useful benefits delivered first! Recently, some friends said they did not receive the article push for the day. This is because WeChat has changed the push mechanism, causing those who have not starred the public account to miss the articles pushed on … Read more
IoT Device Access Agreement (Clarifying Data Transmission Security and Operational Responsibility Allocation) Template Description This contract is signed between the device access party (Party A) and the device provision and operation party (Party B). The agreement clarifies the specific content of the IoT device access, data transmission services, and operational services provided by Party B, … Read more
In the development of ECU application software models, the first-order low-pass filter is one of the most commonly used filtering methods, because it can: Eliminate “unreliable high-frequency components” from sensor or bus signals Raw values such as wheel speed, accelerator pedal position, and battery voltage are superimposed with PWM switching noise, ADC quantization noise, or … Read more
If an interviewer asks you: Can you explain the principles of Linux permission allocation? Today, let’s discuss this. 1. Permission Abstraction A complete permission management system requires reasonable abstraction. This includes abstractions for users, processes, files, memory, system calls, etc. First, let’s talk about users and groups. Linux is a multi-user platform that allows multiple … Read more
The emergence of smartphones has revolutionized the way people interact. As the core hub connecting the virtual and real worlds, smartphones have permeated every dimension of modern life. The use of smartphones is heavily reliant on network services. In addition to mobile data, an increasing number of people access the internet by connecting to Wi-Fi. … Read more
A crucial aspect of automotive development—revealing the secrets of calibration! What is Automotive Calibration Technology? Engineers set and adjust thousands of parameters in the vehicle’s ECU through a series of experiments, tests, and data optimization to ensure that all systems of the vehicle achieve optimal performance, efficiency, environmental friendliness, and comfort. The different calibration styles … Read more
When you open an ECU, and see the densely packed components inside, do you sometimes feel confused and unsure of where to start? This is completely normal. Today, we will help everyone understand how the components in the ECU work, while also assisting in the smoother repair of the ECU. The ECUs used for demonstration … Read more
Technical Alley Read time: 5 minutes Remember to star our public account In Linux systems, managing file and directory permissions is crucial for ensuring system security. Whether it is to limit the operational scope of ordinary users or to ensure that critical files are not accidentally deleted, permission configuration plays an important role. This article … Read more
Essential Guide to Deploying Linux Firewall: From Basic Protection to Advanced Rules, Easy for Beginners ** Hello everyone! Previously, when sharing about Linux SSH remote management, some friends in the background commented: “Remote connection is convenient, but the server is exposed to the network, and I am always worried about being attacked. How can I … Read more
Click the blue text above to follow us Keeping Bluetooth on in your phone can bring many conveniences, such as connecting to wireless headphones and transferring files. However, prolonged use or improper usage can indeed lead to some disadvantages 😟. First, when Bluetooth is turned on, it continuously sends and receives signals, which consumes your … Read more