When learning about fire alarm systems, many people encounter the professional terms “Two-Wire Bus”, “Two-Wire System”, and “Four-Wire System”. So, what do they mean? What are the differences and application scenarios? Today, we will quickly clarify these common concepts! 1. Starting from the basics: Where do the Two-Wire Bus, Two-Wire System, and Four-Wire System come … Read more
(1) Achievement Overview: The smart fire early warning system based on NB-IoT consists of perception layer devices, NB-IoT network, wireless connected fire warning monitoring platform, and terminal App. The perception layer devices include independent smoke fire detectors with wireless connectivity, independent temperature fire detectors, independent combustible gas detectors, and independent electrical fire monitoring detectors. This … Read more
In the design, application, and selection process of fire automatic alarm systems, most people pay attention to the appearance, sensitivity, stability, and intelligence level of fire detectors, as well as the performance, interface, and functionality of the main unit… However, during actual engineering construction, there are some seemingly simple yet crucial aspects that require our … Read more
Fire Alarm System Circuit Bus Short Circuit Handling Methods When a certain circuit bus of the fire alarm system experiences a short circuit and the current between wires is too high, the controller emits sound and light alarms, while displaying a short circuit on the LCD screen in Chinese (see the image below). The printer … Read more
In the design, application, and selection process of fire automatic alarm systems, we often pay attention to the appearance, sensitivity, stability, and intelligence level of fire detectors, as well as the performance, interface, and functions of the control panel. However, during actual engineering construction, there are some seemingly simple issues that deserve our close attention. … Read more
Click Above↑ “Old Wang Talks to You”ElectricalI The bus short-circuit isolator is mainly used to isolate components on the bus, isolating fire detectors, combustible gas detectors, manual alarm buttons, and sound and light alarms in a specific area or segment, to avoid affecting the reliable operation of the system in areas that are not isolated. … Read more
Click AboveElectricalI 1 Analysis of Bus Short-Circuit Isolator Settings 1.1 Significance of Bus Short-Circuit Isolator Settings When a short circuit occurs in the fire alarm system’s bus circuit, the fault circuit will pull down the voltage of the entire fire alarm system, leading to system paralysis and failure. To prevent this situation, the “Specification” requires … Read more
Debugging Fire Alarm Controllers 4.3.1 Before debugging, all external control connections of the fire alarm controller should be disconnected. After connecting any fire detector from the bus loop and manual fire alarm buttons on that loop, the power can be turned on. Check quantity: All checks. Inspection method: Visual inspection.4.3.2 Perform the following functional checks … Read more
Understanding Gas Sensors and Logical Operators in Arduino Main Content: 1. Using Gas Sensor (MQ2) 2. Introduction to Logical Operators 3. Suggested Fire Alarm Project If you find it useful, please like, follow, and support! If you have any questions or suggestions, feel free to reply. To learn about the virtual simulation content in the … Read more
Build your fire alarm system at home using Arduino UNO. In this tutorial, you will learn all the steps to DIY an Arduino fire alarm system. Components Required for This Project Hardware Components Arduino Mega 2560 and Genuino Mega 2560 Buzzer Flame Sensor Jumper Wires (Generic) Software Apps and Online Services Arduino IDE Make your … Read more