How big is the impact of communication protocols on smart homes? -Nanjing IoT sensor merchants to join the headquarters

Smart home does not establish a unified standard, but is more and more, even if the cable does not count, a variety of wireless protocol is enough dazzling. At the moment, almost every vendor involved believes that the standards or protocols they adopt will become indispensable mainstream technologies for the future of smart homes. However, the manufacturers to see the communication protocol so heavy, the impact of the communication protocol on the smart home is how much? Considering the influence of wireless communication in life, the following is the wireless communication protocol.

Manufacturers are eager to use the protocol they advocate or adopt as a unified agreement for smart home, but also have not forgotten that they can also make new agreements, so today's wireless communication protocol is richer than before.

--Small-scale protocol: RF, NFC, infrared and so on. From the technical features, these three types of agreements do not have much resemblance, but still have a place in the smart home field. Although they are used less frequently (radio frequency can be used for curtain motor, shutter door control; NFC tags are a fast and smart home control means; infrared can be used for the control and management of infrared home appliance equipment), but there is a certain living space, radio frequency is still a fully arranged in the home equipment protocol.

-High-profile protocol: WiFi and Bluetooth. These two kinds of agreements almost do not need us to explain too much, many mobile phones, tablets, digital cameras, headphones, speakers, etc. are in use. Compared with other agreements, they have a high level of visibility, coverage, popularity, and in the smart home area is also the mainstream.

-A more competitive agreement: Z-wave and ZigBee. The former is an emerging RF-based, low-cost, low-power, high-reliability, network-appropriate short-range wireless communication technology for residential, lighting commercial control and state-reading applications, such as meter reading, lighting and home appliance control, HVAC, access control, burglar and fire detection, etc., the latter is called the Purple Bee Protocol, The name comes from the bee's eight-step dance, is a short-distance, low-power wireless communication protocol based on IEEE802.15.4, suitable for building automation equipment, such as temperature automatic adjustment device, lighting control equipment, environmental sensors and so on.

--The following protocol: thread and weave. Thread is a mesh network protocol based on the simplified version of IPV6, developed jointly by several technology companies such as Nest and Samsung, designed to interconnect the various products in the home and connect to the Internet and the cloud. Weave by Google in late May, with cross-platform, API open and other features, can allow IoT devices to communicate.

These agreements have been put in place in the industry, but the attitude and practice of the agreement have been largely different: one is to vigorously publicize the agreements adopted by the House, and the other is to work out a new agreement. Is it possible for a smart home to have an agreement that determines everything? Of course not. On the contrary, the Protocol is the basis of intelligent home communication, but does not determine the overall quality of smart home equipment.

First, smart home is the application of the Internet of things in the home, and the IoT is connected by things, and the connection between things is the communication standard/protocol. From the system point of view, smart home refers to a complete set of systems including intelligent host, device node, communication technology and software application. Wireless technology protocol as the mainstream of intelligent home communication technology, is to connect equipment nodes, to achieve information exchange channels, and various types of equipment in series to form a home equipment Internet.

-second, the same applies to the smart home, but the various types of protocols are different, which is the current intelligent home communication standards can not be unified an important reason. Whether it is security, stability, or fluency, equipment carrying capacity, etc., ZigBee, WiFi, Bluetooth, Z-wave, RF RF, infrared, NFC, etc. are not the same, and have their own strengths. For example, ZigBee is more secure and stable and the equipment carrying capacity is strong, WiFi does not need bridging equipment, Bluetooth devices more flexible, strong mobility and so on.

Again, there are differences in smart home devices based on the same protocol. "Even if the ZigBee agreement is taken, it does not indicate that the level is the same, and it will be uneven." For example, in terms of security, the Common security level of ZigBee exists in the Trust Center key and the network key when the data is actually being transmitted over the network. IoT sensor system for the self-ecological system, its Trust Center key is not public, the actual communication network key for random generation, each network is different, and can make the network key dynamically updated according to needs, so there is no security risk. But if vendors abuse the protocol at will, ignoring security, regardless of the protocol, their devices are cracked by malicious attackers, "said Dr Sun, senior security expert for IoT sensing.

For smart homes, the protocol is not everything. In fact, the user is really concerned about the product, has a good user experience of the product. The use of more sophisticated wireless technology standards, can improve the security of smart home, stability and timely information feedback ability, but for the time being, manufacturers over-infatuated agreement is not enough. So what's beyond the agreement?

-Big data. With the increasing number of smart home devices, the data generated during the operation of the equipment is growing at a geometric level, forming huge amounts of data, which is what we call big data. Xiongyan, chief expert at China Unicom's Network Technology Institute, said that "in the big Data age, everyone is a contributor to data." It is expected that by 2020, a Chinese average household will generate data equivalent to half of the National Library's information reserves. "These data will provide more accurate reference standards for smart home intelligent upgrades."

--Cloud. For the early smart home, as long as the device can carry out the wireless technology transmission command, is enough to cope with the general family, but after the big data, smart home in addition to the wireless Technology Foundation, but also need to strengthen the processing of huge amounts of data, extract big data value, and cloud computing is not only big data storage, analysis, An important tool for accurate extraction will also be the engine for deep learning of the device.

Although the smart home still does not have a unified agreement, but with the gradual improvement of technology, communication protocol will become the bottom of the smart home technology, rather than the major vendors compete for the main points of interest, but also can not ultimately determine the quality of intelligent products. It can be predicted that the next communication protocol is still important for smart homes, but smart homes will be more focused on cloud computing and big data, and ultimately the key to the outcome is the product itself.

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How big is the impact of communication protocols on smart homes? -Nanjing IoT sensor merchants to join the headquarters