The full name of CAN is Controller Area Network, which translates to Controller Area Network. It is a half-duplex asynchronous serial communication protocol and physical interface used in embedded systems such as vehicles, power systems, and industrial equipment. CAN is an event-driven communication protocol that employs a non-master-slave structure, allowing all nodes to send and … Read more
✦ To implement the “Guidelines for Information Security Protection of Industrial Control Systems” and fulfill the policy requirements of the “14th Five-Year Plan” for coordinated development and safety, the Industrial Control System Information Security Industry Alliance (ICSISIA) launched a collection and selection activity for typical application cases of industrial safety systems on May 20, 2021. … Read more
Click the “blue text” above to follow us! 2025.05.17 Word count: 1870 Estimated reading time: 5 minutes The market for IoT embedded real-time operating systems is continuously gaining attention, driven by changing market demands and rapid innovation. Forecasts from 2026 to 2033 indicate that various industries are integrating these system solutions into their operational frameworks, … Read more
From early mechanical keys to RF remote keys, and then to Near Field Communication (NFC), wireless unlocking technology has continuously evolved towards greater convenience and intelligence. However, traditional solutions have significant limitations: key activation often leads to forgetting to carry keys; NFC requires active contact with the device, which does not achieve true “unconscious” operation. … Read more
Brief Introduction With the rapid development of Industry 4.0 and smart manufacturing, industrial IoT technology is profoundly changing the production and management models of traditional industries. As a core component of this transformation, the smart gateway is indispensable in device interconnection, data collection, and edge computing. The Role of Smart Gateways in IoT The smart … Read more
Hello everyone, I am the Intelligence Guy~ In embedded Linux development, network issues are often “invisible killers”—sudden disconnections, inaccessible services, data packet loss… These may involve multiple aspects such as hardware, drivers, protocol stacks, and firewalls. Today, I will share how to troubleshoot network issues in embedded Linux, guiding you through the ultimate troubleshooting process … Read more
Currently, Linux software engineers can be roughly divided into two levels: 01 Linux Application Software Engineer: Mainly writes application software using C library functions and Linux APIs; Those engaged in this type of development work mainly need to learn: API functions and system calls that comply with the Linux POSIX standard, Linux multitasking programming techniques: … Read more
In embedded Linux, Asynchronous I/O (AIO) is a powerful I/O model that allows processes to continue executing other tasks while waiting for I/O operations to complete. Compared to I/O multiplexing mechanisms (such as select and poll), asynchronous I/O uses a signal notification mechanism, allowing processes to avoid repeatedly polling the I/O status. Instead, the kernel … Read more
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Abstract：As electronic products become an integral part of daily life, their application in safety-critical automotive systems has become ubiquitous. The International Organization for Standardization (ISO) 26262 standard outlines guidelines for establishing a good safety level in automotive System-on-Chips (SoCs). However, despite adherence to this standard, operational failures may still occur, necessitating Safety Mechanisms (SMs) to … Read more