Click the Blue Words to Follow Us Solution Introduction This solution is based on the main control platform Allwinner_v851s and sensor SOI_F355P, used in smart monitoring IP cameras, suitable for outdoor or indoor use. It adopts a resolution of 1920×1080 with a frame rate of 30. As a 2M monitoring camera, it enhances imaging quality … Read more
Who doesn’t know how to copy and paste? Ctrl+C and Ctrl+V can achieve this. These two important operations are used by many people multiple times a day, but the process is often not understood; as long as it works, that’s enough. In a basic computer applications course, the teacher will certainly tell you:The copy and … Read more
As consumer-grade security demands evolve from “visibility” to “long-term observation and understanding,” AIoT technology continues to break the boundaries between devices and scenarios. The security IPC chip industry is standing at the dual forefront of “technological breakthroughs” and “scenario explosions.” Traditional chips, which relied on constant power and single functions, are increasingly unable to meet … Read more
Loongson revealed at the Innovation Forum that the Loongson 3C6000, Loongson 3D6000, and Loongson 3E6000 have all completed tape-out and are set to be released in the fourth quarter of 2024. The Loongson 3C6000 processor will introduce the LoongChain 1.0 for the first time, similar to NVIDIA NVLink, supporting interconnects between 2 to 8 chips—potentially … Read more
Hello everyone, I am the Information Guy~Today, I will share a core system call in Linux: mmap (Memory Mapping), It allows for the direct mapping of files or devices into a process’s virtual address space. Through mmap, three powerful functionalities can be achieved: File access is transformed into memory read/write operations The kernel automatically handles … Read more
When developing desktop applications or system services, inter-process communication (IPC) is an unavoidable topic. Whether it is for configuration synchronization, event broadcasting, or interacting with system daemons, a stable and scalable communication mechanism is required. Common IPC methods include pipes, shared memory, and sockets, but they often require developers to handle serialization, message routing, permission … Read more
1. Introduction to UBUS ubus (OpenWrt micro bus) is a lightweight inter-process communication (IPC) framework in OpenWrt, based on Unix domain sockets and the JSON-RPC protocol. It consists of the following components: · ubusd: the core daemon that manages message routing. · libubus: a C language library that provides APIs. · ubus command-line tool: used … Read more
The report from Electronic Enthusiasts indicates that security IPC chips are evolving towards higher definition, greater intelligence, and more integration. On one hand, with the popularity of ultra-high-definition video and artificial intelligence technologies, IPC chips need to support video encoding and decoding at 4K or even 8K resolution, as well as perform complex AI analysis … Read more
The Queue in real-time operating systems (RTOS) such as FreeRTOS is a very important communication mechanism, mainly used for 1. Inter-Process Communication (IPC) and data transfer between tasks and interrupts.2. It can facilitate task synchronization and resource management. General queues can protect and utilize resources by implementing semaphores and mutexes.This article, as the first part … Read more
multiprocessing is a standard library module in Python that supports multiprocessing programming. It allows programs to execute in parallel across multiple processes, thereby fully utilizing the computational power of multi-core CPUs and improving program execution efficiency. Unlike threads (threading), processes are the basic units scheduled independently by the operating system, possessing their own memory space. … Read more