Disaster prevention device in case of fire

table of contents

Introduction

1. Optical smoke detector

2. Flame detector

3. Temperature sensor

4. Motion sensor

5. Smart home integration system

summary

Introduction

Early detection and prompt response to fires are essential. Fire prevention equipment is indispensable for issuing early warnings and ensuring people's safety in the event of a fire. In this article, we will take a closer look at innovative fire protection equipment that makes full use of the latest technology.

 

1. Optical smoke detector

1-1 Mechanism

Optical smoke detectors combine an optical sensor with a light source. Light-emitting diodes ( LEDs ) are commonly used as light sources. The sensor has an optical chamber that emits light into an open space within the detector. The air in the optical chamber is typically clean with no smoke or particulates.

 

When smoke is generated, smoke particles diffuse into the air and enter the optical chamber. This causes light to be scattered by the smoke particles, changing the amount and pattern of the light. An optical sensor senses changes in light and evaluates the amount and density of smoke detected.

 

1-2 Features

Early detection : Optical smoke detectors are excellent for early detection of fires because they detect minute smoke particles. The detector detects smoke and issues an alarm even in the early stages when the smoke has not yet turned into a large flame.

High Sensitivity : The optical sensor is extremely sensitive as it detects the scattering of minute smoke particles. As a result, even minute changes in smoke can be detected, enabling early warning.

Low false alarm rate : Because optical smoke detectors are based on the scattering of smoke particles, they have a relatively low false alarm rate due to other factors (e.g. cooking steam or humidity changes). more accurate detection.

Low power consumption : Optical smoke detectors use low power consumption light sources such as LEDs , which saves energy and has a long lifespan.

Easy maintenance : In general, optical smoke detectors are easy to maintain. Regular cleaning of dust and dirt is required, but no replacement or calibration is usually required.

 

2. Flame detector

2-1 Mechanism

Flame detectors detect flames by detecting the changes in light that occur during a fire. Optical sensors (photocells) and light sensing elements are commonly used.

Flames emit light such as visible light and infrared light. A flame detector senses the light of a flame compared to the ambient light environment and detects changes in it. Detectors are designed to be sensitive to light in a specific wavelength range. If a flame is detected, the detector will issue an alarm, signaling the presence of fire.

 

2-2 Features

High Sensitivity : Flame detectors are extremely sensitive because they detect the changes in light that occur during a fire. Even minute flames can be detected, contributing to early detection.

Wide Range Detection : Flame detectors can detect flames using a wide range of wavelengths, including visible and infrared light. This allows for different types of fuels and fire types.

Reliable : Flame detectors detect changes in light directly, so they have a low false alarm rate due to other factors (eg smoke or humidity). This will result in more accurate detection.

Fast Response : The flame detector detects changes in flame light in real time and issues alarms quickly. This fast response is important for early response in the event of a fire.

Environmental resistance : Flame detectors are designed to withstand harsh environmental conditions. It is heat and water resistant and can be used indoors and outdoors.

 

 

 

3. Temperature sensor

3-1 Mechanism

Temperature sensors monitor the ambient temperature using temperature sensors (thermocouples, thermistors, infrared sensors, etc.). When the pre-set temperature threshold is exceeded, the temperature sensor will give an alarm and notify the presence of fire.

A typical temperature sensor takes measurements periodically for the sensor to detect changes in temperature. The sensor detects a high temperature compared to the set threshold when the temperature rises rapidly. With this detection, the temperature sensor will detect the outbreak of fire early and issue an alarm.

 

3-2 Features

Early detection : Temperature sensors are excellent for early detection of fires because they detect sudden temperature rises. Even in the immediate aftermath of a fire, the temperature sensor detects high temperatures and issues an alarm.

High Sensitivity : The temperature sensor has high sensitivity and accurately detects the set temperature threshold. Even small changes in temperature are detected, enabling early warning.

Wide range of applications : The temperature sensor can be applied in various environments and places. Accurate temperature detection can be performed indoors and outdoors, in hot and cold environments.

Works with Integrated Systems : Temperature sensors can work with fire alarm systems and automatic fire extinguishing systems. As a result, it is possible to automatically activate the fire extinguishing device and take appropriate measures in the event of a fire.

Long life and low power consumption : The temperature sensor provides reliable and accurate temperature sensing over long periods of time. It also uses a low power design to minimize power consumption.

 

 

4. Motion sensor

4-1 Mechanism

Motion sensors use different sensor technologies to detect movement. Here's how it works:

Infrared ( PIR ) Sensors : Passive infrared ( PIR ) sensors detect motion by sensing the infrared radiation emitted by the body temperature of people and animals. The sensor senses changes in the heat radiation pattern and detects motion accordingly.

Microwave (microwatt) sensors : Microwave sensors detect changes in microwave frequency and reflection patterns. The sensor detects motion by emitting microwaves and detecting reflected waves from the movement of objects or people.

Ultrasonic sensors : Ultrasonic sensors use reflected patterns of sound waves to detect the position and movement of objects. The sensor emits ultrasonic waves and detects the reflected waves from objects to detect motion.

 

4-2 Main types

Presence sensors : Presence sensors are used to detect the presence of people or objects. When motion is detected, the sensors send signals to control related systems and equipment. For example, they are used to control lighting and security systems.

Gesture-controlled sensors : Gesture-controlled sensors are used to control devices according to hand and body movements. For example, it is used for gesture operations on smartphones and game controllers.

Tracking Sensors : Tracking sensors provide continuous motion tracking. For example, it is used for the motion tracking function of security cameras and the opening and closing control of automatic doors.

 

4-3 Features

High Sensitivity and Accuracy : The motion sensor is sensitive to minute movements and the presence of objects. Therefore, accurate motion detection is possible.

Real-time detection : Motion sensors detect motion in near real-time. React quickly and take relevant actions quickly.

Energy Efficient : Many motion sensors are designed to save energy and go into a low power consumption state when there is no movement.

Wide range of applications : Motion sensors are used in various fields. It is used in many applications such as home lighting control, security systems, automatic doors, robots, mobile devices, game controllers and more.

 

 

5. Smart home integration system

5-1 Overview

Smart home integration systems leverage Internet of Things ( IoT ) technology to network different smart devices and sensors and control them through a central hub or application. This allows users to easily manage devices and systems in their homes using smartphones, tablets, voice assistants, and more.

 

5-2 Main features

Central Control : A smart home integration system manages different smart devices and sensors under one central control system. This eliminates the need to operate multiple devices and systems individually and provides a unified interface for easy control.

Automation : Smart home integration systems can automatically control devices based on user-set conditions and schedules. For example, your doors will automatically lock when you leave, or your lights will turn on automatically at certain times.

Cooperation with sensors : By working with sensors, smart home integration systems can monitor environmental conditions and take appropriate actions. For example, if a temperature sensor detects a high temperature, the air conditioner will automatically turn on, or if a security sensor detects suspicious movement, an alarm will be issued.

Remote access : The smart home integration system can be remotely accessed via the Internet. This means you can control your home devices on the go via your smartphone or the internet. For example, you can operate the air conditioner to cool the house or check the security camera footage from outside.

Seamless User Experience : The smart home integration system provides a seamless user experience. Different devices and systems work together with a unified interface, enabling easy and intuitive operation.

Scalability and compatibility : The smart home integration system is compatible with various smart devices and protocols. You can build a system with excellent scalability by linking with the products of many major smart device manufacturers.

 

summary

Fire prevention equipment for early detection detects abnormalities such as smoke, flame, temperature, and movement to detect fires at an early stage and play a role in ensuring the safety of people. Utilizing the latest technology, the disaster prevention equipment has high sensitivity and quick alarm capabilities, and is more effective when combined with smart home integration systems. These devices support early response and evacuation in the event of a fire, and play an important role in protecting people's lives and property.