How Data Flow Works in Message Queue Telemetry Transport (MQTT)

How Data Flow Works in Message Queue Telemetry Transport (MQTT)

Translator | Li RuiReviewer | Sun ShujuanThe data created by humans on the internet and computers is not always accurate; human typing, scanning, photographing, or recording is not always reliable. But what if there are sensors on machines that collect data and can communicate with other machines? What if there is a protocol that allows … Read more

Practical Design of Industrial Internet of Things Architecture

Practical Design of Industrial Internet of Things Architecture

The Industrial Internet of Things (IIoT), as an important carrier for the integration of industrial automation and information technology, is driving fundamental improvements in production efficiency and management effectiveness across multiple industries such as manufacturing, logistics, and energy. With the maturity of technologies such as sensors, embedded systems, edge computing, cloud platforms, and big data … Read more

BMW Engine and Sensor Data Flow Reference

BMW Engine and Sensor Data Flow Reference

1. Front Oxygen Sensor: Greater than 2V——— Lean (Idle 1.5-N20.N55; 2V-N52); Equal to 2V———- Complete combustion; Less than 2V——– Rich 2. Rear Oxygen Sensor: Greater than 0.45V——— Rich; Equal to 0.45V———- Complete combustion (generally 0.7V); Less than 0.45V——– Lean 3. Intake Manifold Pressure Sensor: With VALTRANIC: Absolute pressure 950mbar, relative pressure 50mbar; if the VVT … Read more

Why I Use Makefile for Processes

Why I Use Makefile for Processes

Automatically check if target files or source files exist. If the source files are not found, exit the make process. If the target files are found, skip this make step. Automatically check for changes in target files or source files. If the source files are modified, regenerate the corresponding target files. Easy to run multiple … Read more

Visual Interface Development with Node-RED: Framework Introduction and Data Flow Deployment

Visual Interface Development with Node-RED: Framework Introduction and Data Flow Deployment

Introduction to Node-RED Framework and Data Flow Deployment We have previously introduced the basics of Node-RED, including login functionality. Today, we will learn about the specific framework of the open-source visual development tool Node-RED and how to deploy the first data flow. 1 Introduction to the Interface Framework The data flow editing interface consists of … Read more