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Live baccarat: 3 minutes after reading ZigBee technology past life
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September 11, 2017 09:09
Under the apple tree, Newton was smashed by the ripe apple, so he found the existence of the law of gravitation. The black wind is high, the bat's safe flight inspired the scientist to invent the radar. Bees issued "buzzing" to communicate, the same music bad smart man, the famous ZigBee was born.
1
Introduction to ZigBee Technology
Before the introduction of ZigBee, we must first mention his predecessors - Bluetooth, Bluetooth technology was originally created by Ericsson in 1994. The use of the process, people found that although there are many advantages Bluetooth technology, but there are still many flaws. For industrial, home automation and industrial telemetry remote control areas, Bluetooth technology is too complex, power consumption, distance, network size is too small.
While industrial automation, the demand for wireless data communications more and more intense. For industrial sites, this wireless data transmission must be highly reliable and resistant to various electromagnetic interference from industrial sites.
Therefore, after long-term efforts, ZigBee agreement in 2003 officially came out. Make up for the Bluetooth technology can not meet the industrial automation, low data volume, low cost, low power consumption, high reliability wireless data communication needs.
Zigbee's three networking modes
ZigBee technology, the use of mesh topology, automatic routing, dynamic networking, direct sequence spread spectrum. Mesh network is actually multi-channel communication, with self-organization, self-healing function. Once a node has a problem, the information can be automatically transmitted along the other nodes.
Like the streets of the city, may be due to car accidents, road maintenance, making a road temporarily interrupted, this time because we have multiple channels, the vehicle can still reach the destination through other roads. And this is very important for industrial field control.
2
Development and challenge
The birth of the ZigBee protocol stems from the need for industrial networking. But in order to meet the different application background, ZigBee Union has promulgated
ZigBee Home Automation (ZigBee HA);
ZigBee Light Link (ZigBee LL);
ZigBee Building Automation (ZigBee BA);
ZigBee Retail Services (ZigBee RS);
ZigBee Health Care (ZigBee HC);
ZigBee Telecommunication services (ZigBee TS)
And other application layer protocol to meet the smart home, intelligent lighting, intelligent building, intelligent retail, intelligent health, intelligent communications services and other fields.
The problem is that these application layer protocols are independent of each other. To the most widely used smart home field, for example, Ou Ruibo using the standard ZigBee HA protocol smart switch, and Philips using the standard ZigBee LL Hue intelligent light bulbs can not control each other.
Here stressed that the standard ZigBee agreement is due to the early ZigBee version of the standard because of the poor do not give the manufacturers too much choice, although many manufacturers use ZigBee HA agreement, but the terminal smart home manufacturers customized according to their own needs ZigBee HA, rather than the standard ZigBee protocol, resulting in different manufacturers or products can not be interoperable.
This is also similar to Android, different mobile phone manufacturers are using Android system, but have carried out a large number of customization, leading to the final mobile phone system is also different. It can be said, ZigBee only before the intelligent device to solve the problem of connectivity, but did not solve the problem of interoperability of intelligent devices.
In May 2016, ZigBee Alliance launched the ZigBee3.0 standard, its main task is to unify the many application layer protocol, to solve the interoperability between different application layer protocol issues. Users as long as the purchase of any one through the ZigBee3.0 gateway can control different manufacturers based on ZigBee3.0 intelligent devices.
ZigBee3.0 unified the use of different application layer protocol ZigBee equipment discovery, join and networking, making ZigBee device networking more convenient and more unified.
And ZigBee Alliance launched ZigBee3.0 certification, is to regulate the use of standard manufacturers ZigBee3.0 agreement to ensure that the ZigBee3.0 device based on interoperability.
3
List of manufacturers
Since the Zigbee 3.0 standard released in the first 7 months, Zigbee Union announced in December 2016 its eight member companies have 20 Zigbee 3.0 chip platform certified, and said the future IoT application developers in the development of architectural lighting, energy Applications, sensors, controllers, gateways and other networking applications, there will be more suppliers to choose from, no need to worry about interoperability issues.
The following is a list of relevant manufacturers, regardless of rank.
1, Microchip Technology Inc.
Headquarters: America
Introduction: In 2016, Microchip officially acquired Atmel. Atmel is a leading global semiconductor company dedicated to the design and manufacture of microcontrollers, capacitive touch solutions and radio frequency (RF) components. Atmel is also a member of the Zigbee Alliance.
Official website: http: //
www.microchip.com/
2, Qorvo, Inc
Headquarters: America
Introduction: Qorvo is a leading provider of RF solutions for mobile applications, infrastructure and aerospace, and defense applications, while ZigBee chips are developed by its low-power wireless business (formerly GreenPeak Technologies). Combined with its SDK and GP712 communication chip, allows the gateway to handle a variety of different connection standards. Developers can now insert different application protocols as needed. Several leading gateway manufacturers have begun to use the GP712 to develop the ZigBee 3.0 gateway.
Official website:
http://www.qorvo.com/
3, NXP Semiconductors NV
Headquarters: Netherlands
Introduction: NXP is a leading semiconductor company founded by Philips, which has a long history of 50 years. The JN5179 device is an ultra low power, high performance wireless microcontroller that can be optimized for smart home and intelligent lighting networks in the Thread and ZigBee 3.0 application platform.
Official website: http: //
www.nxp.com/
4, Samsung Group
Headquarters: Korea
Introduction: At the beginning of 2015, the Z-Wave Alliance High-profile announced that Samsung SmartThings became a member of the Board of Directors. However, it has been half a year, SmartThings has successfully joined the ZigBee Union board of directors, became the 13th board of the Union members.
Official website:
http://www.samsung.com/
5, Silicon Laboratories.
Headquarters: America
Introduction: Core Science and Technology was established in 1996, in a variety of mixed-signal products in a leading position. Core Technology last year released the flagship Wireless Gecko multi-band, multi-protocol wireless SoC series, one of which Mighty Gecko SoC not only supports the latest ZigBee standard, but also compatible with a variety of running in the 2.4GHz band Thread and low power Bluetooth connectivity, and proprietary protocols for the 2.4GHz band and Sub-GHz band. For the developers to provide a very simple Internet of things design solutions.
Official website: https: //
www.silabs.com/
6, Texas Instruments Incorporated.
Headquarters: America
Introduction: Z-Stack 3.0.x is a Texas Instruments Zigbee 3.0 compatible CC2530, CC2531 and CC2538 wireless microcontroller protocol suite. z - stack 3.0 combines multiple previous Zigbee configuration files into a single standard. Support CC2592 and CC2590 RF front end, respectively, extended to +22 dBm and +14 dBm transmission power, and provide improved receiver sensitivity.
Official website: https: //
www.ti.com
7, ubisys technologies GmbH
Headquarters: Germany
Introduction: ubisys was founded in 2006, is a professional wireless communications and embedded systems hardware and software design company. ubisys teamed up with Qorvo to develop a new, fully compatible gateway solution. The solution enables free communication between devices based on the integration of ZigBee 3.0 and Green Power's intelligent home network into the Open Connectivity Foundation IoTivity framework.
Official website: http: //
www.ubisys.de/
8, Tailing Microelectronics (Shanghai) Co., Ltd.
Headquarters: Shanghai
Introduction: Tailing Micro was established in 2010, is a commitment to research and development of high-performance low-power wireless Internet of things SOC joint venture between China and the United States. The main selling chips include Bluetooth low power, Zigbee, and high performance low power capacitive touchpad chips. January Tailing Micro is based on the latest ZigBee protocol stack standard ZigBee RF chip, has passed the ZigBee compatible platform test. The ZigBee solution includes TLSR8646, TLSR8269 and so on.
Official website:
http://cn.telink-semi.com/
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