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Smart home technology

2014/4/9 15:01:58

At present, around the world, "replaced by wireless cable" has become an irreversible trend, the trend is more obvious in the field of family things. Can say, home automation is commonly referred to as "smart home" has become a advanced wireless technology arena, different enterprises use the different technical solutions, use effect is different. Here we introduced in four of the most popular wireless technology, intelligent household industry, namely, WiFi, Z - Wave, ZigBee, SmartRoom. Here we focus on the wi-fi technology and ZigBee the advantages and disadvantages of these two technologies.

First to talk about the WiFi, technology research and development is the advantage of the wireless technology, the threshold is low, the product cost is low, usually develop a college graduate a WiFi item cycle in about 30 days. Due to technical development difficulty is small, many start-ups are developed on the basis of the WiFi intelligent household products, but its shortcoming is also very obvious.

1, WiFi, the biggest problem is that the security is very low, the wireless stability of the product is poor, poor user experience degrees. Recently, foreign media have reported that U.S. companies such as belkin's intelligent household products by hackers break easily, CCTV has also reported us hackers shows how to use "snoopy" unmanned drone easy access to open the WiFi function of mobile phone users all the information.

It is hard to imagine, if your neighbor can easily learn all your information, you can know whether your house if anyone, sleep even know what you're looking at film he, how could you sleep? WiFi security has become a field of smart home lingering shadow.

2, the high power consumption is also its great weakness of WiFi, leading to its application in the field of intelligent household co., LTD. Due to its high power consumption, WiFi will cannot be used in areas such as smart locks, forward infrared controller, all kinds of sensors and other products, and smart door lock is one of the indispensable to intelligent home products, and the temperature and humidity sensor, light sensor, smoke detectors and other kinds of sensors is a crucial part of the smart home system.

3, WiFi network capacity is low, expand the space is restricted. Current WiFi network's actual size is generally not more than 16 equipment, while the common switch, electric light, the number of home appliance in the family has been far more than 16, apparently of smart home system based on WiFi technology a very limited number of devices can be connected, the future development space is limited.

Relative to the WiFi technology, ZigBee technology advantage is very obvious. ZigBee technology in the industrial field has accumulated quite a lot of valuable experience, it is well known that industrial requirements are usually much higher than in the field of civil domain, and ZigBee technology is born in complex application environment of industrial sites and markets around the world for a long time. Here to talk about a few of the advantages of ZigBee technology:

1, high security.

ZigBee technology security comes from the systemic design, so far, ZigBee technology in the world has not happened to break precedent, and WiFi, bluetooth, wireless technology such as Z - Wave of frequent safety accidents. Thus it at close range the safety status in the field of wireless communications.

2, low power consumption,

ZigBee technology adopted, extremely low power design theory, a battery can be used for more than 10 years, the actual application of a battery can use 2 years, this kind of low power technology for its application in the field of smart home is widespread, including in the smart door locks, the infrared transponder, temperature and humidity and other kinds of sensor applications.

3, networking ability

In theory, a ZigBee gateway can connect more than 65000 devices, the practice has the stability of the network can be composed of more than 100 kinds of equipment, the network scale is far than WiFi, Z - Wave, bluetooth technology, such as in the foreseeable future also intelligent enough to bear the future needs of the family.

Of course, the disadvantages of ZigBee is clear, the main is difficult to product development, development cycle is long, the product cost is high, the general startup is hard to bear risk, it is also a ZigBee technology at present in the world is only a handful of companies to master the important reasons.

Above all, WiFi very embarrassed, a series of problems in the field of smart home, at present, more and more experts believe WiFi to do some demo products like smart sheet is tasted can also, but to do my long-term use of safe and reliable products are obviously not very well. And ZigBee technology, with its significant technical advantage gained including schneider, union sensing, intelligent household mainstream manufacturers such as philips, [support, a worldwide trend.