张梦宇 朱波

There are many common devices in a smart home available for use. But some gadgets1 fall into four categories which are essential. These are smart lighting， climate control， entertainment purpose and most important security of your home.

Smart lighting： Smart light bulbs are the most commonly used devices at home. It is very easy to install and use. Without a smart light bulb， a home is incomplete. This device offer advantages such as timers， motion-sensing capabilities as well as schedulers2.

With a smart light bulb system， it is very easy to control the total lighting system of a house. If a homeowner wants to switch the light on and off at certain times of day they can do it very easily by sitting anywhere at the house without moving.

Smart lighting system helps to sleep well. It is created specifically for bedrooms， to overcome the problems of light-induced wakefulness3. It reduces the difficulty by mimicking the sun， transitioning its light from the stimulating blue wavelengths4 of early morning light to soothing light of evening sunsets. It helps the human body to sleep easily.

Security camera： Maybe you know of some exciting added benefits of megapixel5 security cameras. The advantage of PTZ6 security cameras is they can cover more area when compared with fixed security cameras. One other great advantage of security cameras is they are certain that the children and seniors are monitored while youre away.

Smart thermostats： Neither thermostat needs a C-wire7， but there are a number of caveats8. Some intelligent thermostats may also tap into door and window sensors in addition to the motion sensors for your house security system. There are a couple of prominent smart thermostats for low voltage heating systems available on the market today.

Bright thermostats are normally very simple to install， but its important that you know the way your system is wired before you begin. They have plenty of upsides9. Irrespective of10 the reason， a wise thermostat never forgets， always knows how to change your temperature， and always cares because thats exactly its purpose which is the way that it saves you money. Intelligent thermostats also have a tendency to be more costly than programmable models， so if the price is a factor a programmable thermostat may be right for you. They allow you to control the temperature in your home with a smartphone， tablet， or computer. Installing a Wi-Fi-enabled smart thermostat can decrease energy expenses and help keep your house comfortable year-round.

Geofencing11 uses your phones location services to permit the thermostat to know whenever you have entered or exited a digital perimeter around the home. Most smart thermostats offer you some kind of user tracking.

Smart entertainment devices： If youre interested in getting all your devices connected today， the Samsung Smart-Things-Hub is your very best option， as it connects to a broad range of goods， and is fairly simple to prepare and use. They consist of smart speakers， smart televisions， and even smart movie projectors.

Theyre so simple now that just about anyone can take advantage of home automation to simplify their lives and enjoy.

智能家居有許多方便供用的常见设备。其中一些设备可归入四类必需品，即智能照明、温度控制、娱乐休闲和最为重要的家庭安保设备。

智能照明：智能灯是家中最常用的设备，易于安装和使用。这种设备在家中必不可少，它还有定时、动作感应及调度等功能。

有了智能照明系统，人们就可以非常容易地控制室内整体照明。如果房主想在一天当中特定时间开关灯，坐在家里任何一处，无须走动便可轻易办到。

智能照明系统有助于提高睡眠质量。它专为卧室定制，可以帮助克服光线导致的不眠症。通过模仿太阳，其光线可从清晨刺眼的短波蓝光过渡到日落时的柔光，从而降低入睡难度，帮助人体轻松进入睡眠状态。

安全摄像头：你也许知道百万像素安全摄像头一些很棒的附加功能。与固定摄像头相比，云台摄像头的优势在于可覆盖更多区域。安全摄像头的另一大优点是它可以确保你在外出时监控到家中的老人和孩子。

智能恒温器：恒温器无须接入公共端导线，但有很多地方需要注意。在家庭安保系统中，除动作感应器外，一些智能恒温器还能与门窗感应器相连。一些性能优越的智能恒温器现已上市，可用于低电压供暖系统。

智能恒温器安装通常很简单，但安装前要了解系统工作原理，这一点很重要。智能恒温器有许多优点。无论如何，它总会知道何时调节温度，时刻给你呵护。因为这就是它的用途所在——节省开支。智能恒温器价格有可能比程控恒温器更高。如果考虑价格因素，程控恒温器或是一个合适选择。你可以用智能手机、平板电脑或计算机来控制房内温度。安装一台无线智能恒温器，不仅可以降低能耗费用，还能常年保持房内舒适。

地理围栏技术使用手机定位服务，恒温器得以随时感知到你进入或离开家中某个数控区域。大多数智能恒温器都能提供某种形式的用户跟踪。

智能娱乐设备：如果想把所有设备连接到一起，三星公司的“智能家居中心”是目前的最佳选择，因为它可以连接很多产品，准备和使用过程也非常简单。这些产品包括智能音箱、智能电视，甚至还有智能投影仪。

这些智能设备操作非常简单，任何人都能通过家居自动化来简化并享受生活。

（译者单位：南京航空航天大学外国语学院）