传感器是把传统家居设备如门窗、灯光等连接起来的“桥梁”，通过各式各样的传感器设备，实现了智能家居的场景化，使人们的生活更加便捷和智能，下面来看看智能家居中常见的传感器。

　　Sensor is the "bridge" connecting traditional household equipment such as doors and windows, lighting, etc. through a variety of sensor equipment, the scene of smart home is realized, making people's life more convenient and intelligent. Let's take a look at the common sensors in smart home.

　　一、温度传感器

　　Temperature sensor

　　温度传感器是指能感受温度并转换成可用输出信号的传感器。温度传感器是温度测量仪表的核心部分，品种繁多，是最早开发、应用最广的一类传感器。温度传感器的市场份额大大超过了其他传感器。

　　Temperature sensor is a kind of sensor which can sense temperature and convert it into usable output signal. Temperature sensor is the core part of the temperature measuring instrument. It has many kinds and is the earliest developed and widely used sensor. The market share of the temperature sensor greatly exceeds that of other sensors.

　　温度传感器按测量方式可分为接触式和非接触式两大类：按照传感器材料及电子元件特性分为热敏电阻温度传感器和热电偶温度传感器两类;电子温度传感器则是利用感温探头、信号处理单元、显示屏、电源等传感元件配合控制器来测量风道或水管中的空气或水的温度。

　　Temperature sensors can be divided into contact type and non-contact type according to the measurement methods: according to the sensor material and electronic component characteristics, it can be divided into two types: thermistor temperature sensor and thermocouple temperature sensor; The electronic temperature sensor measures the air or water temperature in the air duct or water pipe by using the temperature sensing probe, signal processing unit, display screen, power supply and other sensing elements with the controller.

　　温度传感器广泛应用于楼宇自动化、气候与暖通信号采集、博物馆和宾馆的气候站、大棚温室以及医药行业等。

　　Temperature sensors are widely used in building automation, climate and HVAC signal acquisition, climate stations in museums and hotels, greenhouses and pharmaceutical industries.

　　二、门磁传感器

　　Gate magnetic sensor

　　门磁传感器可以用来探测门、窗、抽屉等是否被非法打开或移动。这种传感器一般被安装在门或窗上，感应门窗的开关，配合其他智能安防产品使用，来防止以外入侵的发生。它是由门磁主体和永磁体两部分组成，两者离开一定距离后，门磁传感器将发射无线电信号向系统终端报警。

　　The door magnetic sensor can be used to detect whether the door, window, drawer are opened or moved illegally. This kind of sensor is usually installed on the door or window to sense the switch of the door and window, and cooperate with other intelligent security products to prevent the occurrence of external invasion. It is composed of two parts: the main body of the gate magnet and the permanent magnet. After the two parts leave a certain distance, the gate magnetic sensor will send a wireless signal to the system terminal to alarm.

　　三、PM2.5传感器

　　PM2.5 sensor

　　PM2.5传感器检测精度很高，响应时间快，使用散射原理精确快速的对空气中粉尘颗粒进行检测，自动探测空气中PM2.5含量，相关数据可在主控机和智能客户端显示，主控机还能通过检测到的PM2.5数值与其它设备智能联动。

　　The PM2.5 sensor has high detection accuracy and fast response time. It can detect the dust particles in the air accurately and quickly by using the scattering principle, and automatically detect the PM2.5 content in the air. The relevant data can be displayed in the main control computer and the intelligent client. The master computer can also intelligently interact with other devices through the detected PM2.5 value.

　　当空气中PM2.5过高时，可以控制关窗器智能关窗，并打开空气净化器或是新风系统来净化空气，让家里空气保持清新；另外PM2.5传感器体积比较小，也可以直接嵌入到空气净化器产品中的自净化系统中使用。

　　When PM2.5 in the air is too high, the window closing device can be controlled to close the window intelligently, and the air purifier or fresh air system can be opened to purify the air and keep the air fresh at home. In addition, the volume of PM2.5 sensor is relatively small and can be directly embedded into the self purification system of air purifier products.

　　未来，现代人追求高品质的舒适生活，对健康更加关注，对生活的环境质量要求更加苛刻。智慧城市、智能家居应运而生，而其中以环境监测为主的智能家居设备广受追捧，进而会带动传感器的销量。

　　In the future, modern people pursue high-quality comfortable life, pay more attention to health, and require more stringent environmental quality of life. Smart city and smart home emerge as the times require, and the smart home equipment based on environmental monitoring is widely sought after, which will drive the sales of sensors.