Embedded Hardware

Author: woshigaowei5146 @CSDN Editor: 3D Vision Developer Community Table of Contents Preparation content Preparation Configuration Testing Program Color Recognition Tracking Face Recognition Gesture Recognition Shape Recognition Barcode Recognition QR Code Recognition Troubleshooting module ‘cv2’ has no attribute ‘dnn’ ImportError:numpy.core.multiarray failed to import 1121:error:(-2:Unspecified error)FAILED:fs.is_open(). Can’t open Preparation Raspberry Pi 4B USB Camera Configuration Install python-opencv, … Read more

↑ Click on the top “Chinese Society of Surveying and Mapping“ to quickly follow us Abstract: Automated Guided Vehicles (AGVs) have various methods for indoor positioning, with LiDAR matching being one of the main techniques. However, in areas with few environmental features, the lack of constraints can lead to matching errors. To address this issue, … Read more

Click “Read the original text” to view Liang Xu’s original video. This article explains the following content based on the principles of operating systems combined with code practice: What are processes, threads, and coroutines? What is their relationship? Why is multi-threading in Python considered pseudo-multi-threading? How to choose a technical solution for different application scenarios? … Read more

Recently, Orange Pi launched their new development board. Orange Pi 5 Ultra I took a quick look, and I think this development board can be said to be the culmination of Orange Pi’s RK3588 development boards. Let’s take a closer look at this development board. It uses the RK3588 SoC. 4 x Cortex-A76 @2.4GHz + … Read more

First, let’s review: since 2009, almost all smartphones have been equipped with ARM processors, achieving a performance increase of 100 times. Just think, in just seven years, 100 times, what an astonishing number! Thanks to the significant performance improvement, new features, ultra-fast user interface responses, and immersive user experiences have become a reality, while power … Read more

The Programmer Guide documentation for the ARM Cortex-A Series is no longer over 300 pages, as it has undergone a quiet update in 2024. Although the timestamp on the document is still from 2013, it was only made public in 2024. Currently, the document has expanded to over 400 pages. [ARM English Manual] Chapter 1 … Read more