This article presents a visual catalog of twenty key industrial sensors, ranging from flaw detectors and oxygen sensors to ultrasonic density meters, each illustrated with an image and a brief English description of its measurement principle.
This article explains the variety of sensors built into modern Android smartphones, how developers access them via the SensorManager API, the required permissions, and analyzes several memory, logic, and side‑channel vulnerabilities that expose user privacy and system integrity.
This article explains how to connect and program temperature‑humidity, light, and infrared sensors in PHP‑based IoT projects, covering serial communication setup, Raspberry Pi GPIO handling, data parsing, and sample code for each sensor type.
Learn how to create a smart workstation that continuously tracks temperature, humidity and occupancy using Raspberry Pi, DHT and ultrasonic sensors, logs data to Alibaba Cloud SLS, visualizes it, and explores IoT fundamentals, hardware components, and Node‑based front‑end integration.
The article surveys touchscreen technology, describing its basic three‑layer structure, the operating principles of resistive and capacitive (surface‑ and projected‑type) screens, compares their advantages and limitations, outlines common classifications, and highlights emerging trends toward curved, foldable and flexible displays for modern devices.
Android devices provide dynamic, environmental, and position sensors, with a screen‑oriented coordinate system, and the article explains how accelerometer, gyroscope, gravity, linear‑acceleration, and rotation‑vector sensors work, their data processing, and why rotation‑vector and gravity sensors are preferred for motion‑detection, AR, gaming, and navigation.
This article explains what sensors are, their crucial role as the perception layer in the Internet of Things, outlines common sensor types such as ultrasonic, infrared, temperature‑humidity, light, motion, pressure and gas sensors, and discusses emerging trends like higher precision, miniaturization, low power consumption, and improved reliability.
This article reviews the evolution of autonomous‑driving hardware, discusses key sensor technologies such as LiDAR and GNSS/IMU, outlines mechanical and electronic challenges—including size, weight, temperature, vibration, and electromagnetic interference—and presents Pony.ai’s PonyAlpha platform as a practical solution.
This article explains the fundamentals of IoT architecture, covering definitions, layered structures, typical end‑to‑end network designs such as cellular IoT, home gateways, and LoRa, and details the core functions and types of IoT platforms that anchor the IoT value chain.
This article presents three hands‑on STEM case studies—a gear‑driven fan, an automatic street‑light using light sensors, and an Arduino‑based robot—demonstrating how engineering design thinking can be integrated into middle‑school curricula to foster interdisciplinary learning and problem‑solving skills.
This article provides a comprehensive overview of the Internet of Things (IoT), covering its origin, layered architecture, diverse application scenarios such as smart cities and healthcare, market trends, and the key technical and business challenges that must be addressed for widespread adoption.
This article provides a comprehensive overview of the Internet of Things (IoT) industry chain, detailing the eight major segments—from chip and sensor suppliers to platform services and system integration—while highlighting the major global and Chinese companies driving each segment.
