The confusing wireless communication protocol has always been a major factor hindering the development of the Internet of Things. At present, although it seems that we can't unify all kinds of communication protocols, we can find another way to select the more suitable standards for the Internet of Things and reuse them, and constantly improve and improve. Among these standards, the highest voice, in addition to the lower threshold of the development of the WiFi protocol, there is also a "up-and-coming", in terms of security and power consumption have a good performance of the ZigBee protocol. It is reported that the two major agreements will launch a new version that is more suitable for the development of the Internet of Things in the near future. Who will win this agreement, let us wait and see!
The right side of the collision: the new ZigBee protocol will greatly enhance the energy efficiency of IoT devices
Recently, the ZigBee Alliance announced that the new ZigBee Internet Protocol (IP) 920IP has been developed and tested. The standard is the world's first Internet Protocol 6 (IPv6)-based MeshNetworking solution, which will be applied in the future. Enhance the energy efficiency and interoperability of IoT devices in low-power and low-cost home energy management grid networks and related devices.
With the rise of mobile internet and smart wearable devices, there is an urgent need in the industry for connectivity and compatibility of low-energy sensors and chips. The ZigBee Alliance launched a new agreement, 920IP, in response to the Japanese Ministry of Internal Affairs and Communications (MIC) designating 920MHz for the Home Energy Management System (HEMS) and pushing the lean version of ECHONET to become the standard for smart homes. The ZigBee Alliance has reached an agreement with the Japan Telecommunications Technical Committee (TTC) and the ECHONET Alliance to advance the 920 IP protocol.
ZigBee launches new protocol 920IP
It is reported that the 920IP protocol will support the simplified ECHONET and HEMS. This standard enhances the IEEE 802.15.4 standard by adding network layers, security layers, and application frameworks. In addition, the 920IP protocol is based on standard Internet protocols, providing cost-effective and energy-efficient wireless multi-hop (MulTI-hop) mesh networks such as 6LoWPAN, IPv6, UDP and Routing Protocol (RPL).
In addition, the 920IP protocol also supports advanced encryption standards such as Transport Layer Security - Pre-Shared Key (TLS-PSK), Extended Authentication Protocol (EAP), PANA (Protocol for CarryingAuthenTIcaForFor Network Access), Link Layer Frame Security (LinkLayerFrameSecurity). (AES)-128-CCM algorithm for security and identity verification.
The head of the ECHONET Association pointed out that the streamlined ECHONET will become the application interface standard for HEMS in Japan; therefore, the ZigBee Alliance has a simplified ECHONET and 920MHz option, and can expect higher interoperability and popularity in the market in the future. The Japan Telecommunications Technical Committee expects that the 920IP promulgated by the ZigBee Alliance will become a global standard and, after its release, will drive energy management solutions everywhere and expand penetration in the Japanese market.
It is reported that the work of updating the 920IP standard in the future will be handled by OKI, NEC Engineering, Ad-SolNissin, Texas Instruments and Skyley Networks.
Internet of Things will change the future of life
The Internet of Things, as its name implies, is the Internet connected by objects. It uses the Internet as its core and foundation, and it is a network system that extends and expands on the basis of it. And its client can be extended and extended to any item and item for information exchange and communication.
Therefore, the Internet of Things can be defined as a radio frequency identification (RFID), a sensor, a two-dimensional code, etc., which are connected to a wireless network through an interface, thereby providing an object with "intelligence" and enabling communication between a person and an object. And dialogue, can also achieve the object and object communication and dialogue with each other, this network that connects objects is called "Internet of Things."
The IPv6, which is currently being popularized, can be considered to support an unlimited number of connections. Therefore, through the sensor network, items can be collected, transmitted, analyzed and distributed in large quantities through low-energy sensors, making family life more comfortable. Sensors based on the Zigbee, 6LoWPAN and Z-wave standards are now being used in large numbers.
For example, Zigbee has been built into smart appliances and smart meters. 6LoWPAN (based on IPv6) has been used by the Internet's father, VintCerf, in its own cellar temperature monitoring system. Z-Wave is the foundation of Verizon's intelligent home automation service. And there are still many innovative ways of using them. Sparked, a Dutch startup, implanted sensors on the ears of cows to monitor the health and whereabouts of cows. The sensor is also embedded in shoes, drugs such as asthma sprays, and in research surgical equipment.
Internet of Things will connect the world intelligently
In summary, with the debut of the new ZigBee protocol and other IoT protocols and applications in the gradual improvement, we have seen a broad space for the development of the Internet of Things, and also outlined a blueprint for intelligently connecting the world. We look forward to more and better IoT technologies and related products, which will be rapidly popularized in the near future, and will be convenient for people in terms of food, clothing, housing and transportation.
WiFi is proactive, aiming at new standards in the Internet of Things
On the other hand, unlike Zigbee, related companies have been actively developing wireless communication standards that are more suitable for IoT applications, namely IEEE 802.11ah. Existing major Wi-Fi chip operators and telecom equipment operators are all involved in the standardization and are expected to be completed in 2016. The official version of the standard, even in the second half of 2014 or 2015, can see the 11ah grass version of the standard chip and system.
DIGITIMES Research examines the current 11ah technical specifications and finds that 11ah is different from existing 11n, 11ac and other Wi-Fi technologies, including operating frequency bands, channel usage bandwidth, frame format, transmission rate, and transmission distance.
The 11ah operates in a frequency band below 1 GHz, with a target transmission distance of more than 1 km, and still has a transmission rate of 100 kbps or more. In contrast, 11n and 11ac are transmission distances of about 100 meters, and the data transmission rate is increased as much as possible within the distance.
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