1. Introduction A friend recently sent me a Hikvision security camera, and today we will take it apart to see what’s inside. 2. Disassembly Step one of disassembly, first observe its shape. PS: Nameplate information Model Power DS-2SCD2612F4 2.8-12mm 12V DC 7.5W MAX / PoE(802.3af) Serial Number Production Date 488915429 11/2014 11 Version V5.2.3_141024 Execution … Read more
[For camera information, check Camera Notes] In yesterday’s article, we didn’t mention “sensor size”, and I didn’t expect that there would be so many misconceptions… How Big is 1 Inch Actually? Due to some historical issues*, whether in cameras or smartphones, the “1 inch” in the diagonal length of the sensor is not 25.4mm. * … Read more
1. Introduction Weakly Supervised Object Localization is used to discover the location of target objects within images. Traditional object detection methods typically require precise bounding box annotations for each training sample, which can be time-consuming and labor-intensive for large-scale datasets. To address this issue, weakly supervised object localization solves the problem by using simpler annotation … Read more
If you want to engage in camera driver software development, what basic information is needed? This article summarizes it. From the perspective of independent components, it includes two parts: the sensor module and the core board; thus, the core of the driver software is to ensure the connection between the two. The common hardware interfaces … Read more
Click the blue text to follow us Exploring the Picamera Library: How to Easily Control the Raspberry Pi Camera with Python! Friends who play with Raspberry Pi all know that this mini computer paired with a camera is simply magical. But how to use the camera? Don’t worry, today we will clarify the Picamera library, … Read more
1. Introduction The T31 module is a modular solution for low-power products that support battery power, enabling photo taking, video recording,wifi/BT wireless transmission, and battery charging management. It is suitable for smart wearable devices, doorbells, and similar scenarios. Basic Features: CPU: Junzheng T31A, MIPS, 1.8GHz; Storage: Supports 128M bytes DDR2, 16-32M Bytes Norflash, 8-128G Bytes … Read more
1. Core Functions Supports 4-channel vehicle AHD camera input encoding and synchronous recording. Supports driver face recognition and abnormal alarm upload. Equipped with 8T computing power, supports various AI detection algorithms, extensible to the ADAS field. Supports multiple video streaming protocols including hls/RTSP/RTMP/flv. Supports national standard protocols such as GB28181/JT808, extensible to departmental standard protocols. … Read more
Function Parameters SigmaStar Low Power Series Chip AI Performance Comparison SigmaStar Low Power Series Chip AI Performance Comparison (Part II) Sigmastar & Junzheng Junzheng T40 NOR Fast AI Camera Junzheng A1 Full HD Network Video Decoder Junzheng A1 33-channel (Dual Ethernet) Streaming Device Junzheng T31ZX + GC4653 4MP PTZ Fixed Focus Camera Junzheng T40 + … Read more
There are many products on the market for home surveillance, which work well, but they lack the satisfaction of DIY. Furthermore, we are constantly dealing with code, so it’s good to get a little closer to hardware. Just to clarify, our home surveillance will monitor photos every minute, not real-time video, as the Raspberry Pi … Read more
1. System Overview Based on JunzhengT31 CPU, uses Linux 3.10 as the operating system for smart glasses; Implementing photo taking, video recording, storage, monitoring streaming, and live broadcasting; Camera options of 200 million or 500 million pixels Video recording up to 1080P (H264 , H265), recording files in MP4 format Supports dual-mode WIFI Supports 4G … Read more