The Difference between Zigbee & Zwave
What is the Zigbee?
Zigbee technology offers a standardized solution for connecting and controlling smart devices in a seamless and efficient manner.
The Internet of Things (IoT) enables devices like security cameras, lighting, and coffee makers to communicate and be controlled through a single network. However, the challenge arises from different companies developing these products, requiring a common language for seamless communication.
What is zigbee technology?
Zigbee addresses this issue by providing a wireless communication protocol that operates with the IEEE’s 802.15.4 personal area network standard. Unlike Bluetooth, Zigbee allows devices to communicate without the need for point-to-point communication, making it suitable for smart homes. Zigbee operates on the 2.4 giga hertz standard frequency, and devices within the Zigbee network have specific roles, including coordinators, routers, and end devices. Over 400 companies are registered with the Zigbee Alliance, and more than 2500 Zigbee wireless devices, including Samsung SmartThings, Philips Hue, and Amazon Echo Plus, are currently available.
How to connect zigbee device with devices?Then you will need a zigbee gateway.
What is zigbee gateway?
A ZigBee gateway is used for transferring data between a ZigBee network and devices on another network. Although the ZigBee Alliance is actively enhancing the technology, standardized gateways are not yet in place. The Island Controller technique offers an advantage in supporting vast networks with minimal routes from a single gateway. However, planning by a human is required to designate nodes as Island Controllers, typically in commercial buildings. A drawback is that the receiving node cannot identify the original sender, as the packet appears to originate from the last Island Controller. Commissioning can address this by ensuring data is directed to the correct gateway. Communication occurs at 250 kbps using 2.4 GHz 802.15.4 radios, considered the maximum bandwidth. Determining average bandwidth for applications requires consideration of factors like interferers, network density, ZigBee protocol overhead, and communication patterns.
How many kinds of Zigbee gateway? And how to set up your device with them? Please check the following link.
Zigbee Home Automation (ZHA)
Zigbee for Domoticz
When explore the smart home standard, some people just join in this industry often misunderstand the Zwave with Zigbee. So let’s explain another standard Z-wave
What is Zwave?
The Z-Wave Alliance, formed in 2005, has over 700 members working to ensure interoperability among Z-Wave products. The protocol distinguishes between controllers (hubs) and slaves (devices like motion sensors and door locks), with a maximum of 232 devices in a Zwave network. Z-Wave’s advantages include low power consumption, range, and reliability due to its mesh network, as well as interoperability assured through a certification process. Downsides include potentially higher costs for manufacturers and limitations on device throughput and regional frequency variations. Despite these considerations, Z-Wave offers a reliable and interoperable solution for smart home enthusiasts.
As the main two low power exhaust standards, what’s the same and different of them?
Both Zigbee and Z-Wave devices operate with low power consumption, allowing them to run for several years or even a decade before needing battery replacement in certain situations. Currently, there are many devices on the market that integrate Zigbee and Z-Wave technologies, including smart thermostats, smart door locks, smart switches, smart bulbs, and smart outlets, among others. They can all be controlled through a central hub that supports Zigbee or Z-Wave.
Zigbee is an open standard controlled by the Zigbee Alliance, established in 2002 initially for commercial purposes and later transitioning to smart home applications. Z-Wave, on the other hand, is a wireless network protocol developed by the Danish company Zensys in 2001, primarily designed for home automation. In 2009, Z-Wave was acquired by SigmaDesigns, and in early 2018, it was sold to Silicon Labs for 240 million dollars
What’s the difference between zigbee and zwave on technology?
While Zigbee and Z-Wave work similarly by using mesh networks to send information to smart home devices, they have some differences in functionality.
For instance, Zigbee utilizes the 915 MHz and 2.4 GHz radio frequencies, with the latter being more familiar to many people. Yes, this frequency range is also used by Wi-Fi, which might theoretically cause interference issues in homes with numerous Zigbee and Wi-Fi devices.
Although many households are already filled with various Wi-Fi devices operating in the 2.4 GHz frequency range, the addition of numerous Zigbee devices might raise concerns for some users. However, from the perspective of the frequency of operation and the amount of data transmitted by smart home devices, this doesn’t seem to be a significant issue.
In contrast, Z-Wave operates in the lower frequency range of 800-900 MHz, which is less crowded and is not affected by Wi-Fi interference.
Moreover, there are differences between them in terms of the amount of data transmitted in a single transfer and the number of devices supported in a single network. In this aspect, Zigbee has a slight advantage. Compared to Z-Wave’s 10-100 KB per second, Zigbee has a data transfer speed of 40 to 250 KB per second. Additionally, a Z-Wave network can connect a maximum of 232 devices (or nodes), while Zigbee can support up to 65,000. For most home applications, a capacity of 200+ devices is generally sufficient, but for very large homes or commercial environments, it might be inadequate.
Although the data rates may seem modest compared to Wi-Fi and cellular connections, this doesn’t hinder the development and application of Zigbee and Z-Wave because they are used for transmitting small amounts of data, such as instructions for device operations or data read from sensors. This is in contrast to Wi-Fi and cellular networks that frequently transmit large files like high-definition videos.
Finally, both technologies use the same AES-128 encryption to safeguard the security of smart homes, which is crucial for devices like smart door locks and security surveillance cameras.