ZigBee wireless sensors are used as a wireless communication media for home energy monitoring because they feature suitable communication range, low data rate, low power consumption, low complexity, provision of support to a large number of nodes in the network (up to 65,535), easy removal or addition of nodes in the
What is the main advantage of using Zigbee?
Advantages of Zigbee networks :
Zigbee has a flexible network structure. It has very long battery life. Zigbee has a mesh network topology with low cost, multi hope data transmission and is power effective. It is less complex than Bluetooth.
Which of the following are features of Zigbee Mcq?
| Q. | Following are features of ZigBee |
|---|---|
| A. | it is an industry consortium with the goal of promoting the ieee802.15.4 standard |
| B. | it ensures interoperability by defining higher network layers and application interfaces |
| C. | it is optimized for low data throughput up to 115.2 kbps, with simple or no qos support |
| D. | all of above |
Which of the following is not a feature of Zigbee?
| Q. | Which of the following is not a characteristic of a ZigBee network? |
|---|---|
| B. | easy installation. |
| C. | high data rates. |
| D. | unlicensed radiobands. |
| Answer» c. high data rates. |
What is the importance role of Zigbee in IoT?
Zigbee PRO aims to provide the foundation for IoT with features to support low-cost, highly reliable networks for device-to-device communication.Zigbee IP optimizes the standard for IPv6-based full wireless mesh networks, offering internet connections to control low-power, low-cost devices.
What are the advantages and disadvantages of ZigBee?
Comparison Table for Advantages and Disadvantages of Zigbee Technology
| Advantages | Disadvantages |
|---|---|
| The Zigbee technology has high node support. It can support thousands of nodes under a single network. | Since the technology used in Zigbee is of low bit rate, the transmission rate of this technology is also low. |
What are the main advantages and disadvantages of ZigBee of near field communications?
Advantages and disadvantages of zigbee
- The zigbee has flexible network structure.
- It has a very long battery life.
- It is low power consumption.
- It is easy to install.
- It can be easily implemented.
- It supports large number of nodes i.e. 6500 nodes approximately.
- It has a very low cost.
Which of the following are characteristics of ZigBee *?
The focus of network applications under the IEEE 802.15. 4 / ZigBee standard include the features of low power consumption, needed for only two major modes (Tx/Rx or Sleep), high density of nodes per network, low costs and simple implementation.
What are the features of Bluetooth?
The key features of Bluetooth technology are robustness, low power, and low cost, and the fact that it has become a universal standard for exchanging data amongst a range of fixed and mobile devices. In addition, Bluetooth wireless technology has the ability to simultaneously handle both data and voice transmissions.
What devices use ZigBee?
What Devices Can Be Used with ZigBee?
- Amazon Echo Plus and Echo Show.
- Samsung SmartThings.
- Belkin WeMo.
- Hive Active Heating and accessories.
- Philips Hue.
- Yale smart locks.
- Honeywell thermostats.
- Bosch Security Systems.
Which of the following is true about ZigBee?
Answer: (a.) Explanation: It contains just enough functionality to talk to the parent node, and it cannot relay data from other devices.
Which modulation is used in ZigBee?
The 2.4 GHz band, in which ZigBee transceivers are most commonly deployed, uses the OQPSK (offset quadrature phase-shift keying) modulation stream. This scheme, a derivation of traditional QPSK, is used because it requires less power than similar schemes while achieving the same or better throughput.
What is a ZigBee end device?
A Zigbee End Device (ZED) provides only basic functionality and cannot send or receive directly with other devices. A Zigbee Router (ZR) passes data between devices and/or the coordinator; it can also run applications. A network can run in either a beacon or beaconless mode.
What is ZigBee technology example?
Zigbee Technology is based on IEEE 802.15. 4 Standard and the Zigbee devices operate in the unlicensed 2.4 GHz ISM Band (ISM Industrial, Scientific and Medical).For example, the 868 MHz band supports a data transfer rate of 20 kbps while the more common 2.4 GHz band supports data rates up to 250 kbps.
What is ZigBee architecture?
Architecture of Zigbee:
The Application layer is present at the user level. The Application Interface Layer, Security Layer, and Network Layer are the Zigbee Alliance and they are used to store data and they use the stack. Medium Access control and the Physical layer are the IEEE 802.15.
What is difference between ZigBee and IoT?
The main difference is that, while Zigbee is a short-range IoT protocol aimed at connecting a number of devices in close proximity, LoRa focuses on wide-area networks.That is why the protocol can use 64-bit and 128-bit keys for network, application and device encryption.
How does Zigbee work in home automation?
A ZigBee based home automation system and Wi-Fi network are integrated through a common home gateway. The home gateway provides network interoperability, a simple and flexible user interface, and remote access to the system. A dedicated virtual home is implemented to cater for the system’s security and safety needs.
What are the limitations of Zigbee?
Disadvantages of ZigBee
- Not free: It costs $3,500 USD at the time of writing to license the standard.
- Low data rates: It is not designed to support higher data rates.
- Star network is limited: The coordinator device supports up to 65,000 devices.
Which is better Zigbee or Bluetooth?
The frequency range supported in Bluetooth vary from 2.4 GHz to 2.483 GHz. It covers less distance than Zigbee. In bluetooth, GFSK modulation technique is used.
Difference between Bluetooth and Zigbee.
| S.NO | Bluetooth | Zigbee |
|---|---|---|
| 5. | Bluetooth requires low bandwidth. | While zigbee also requires low bandwidth but greater than Bluetooth’s bandwidth most of time. |
Which is better Zigbee vs WiFi?
Zigbee network is more reliable as compared to Wi-Fi network. WiFi network is less reliable as compared to Zigbee network. It requires low bandwidth but greater than Bluetooth’s bandwidth most of time. It requires high bandwidth.
What is the typical range of transmission distance in a Zigbee network?
Transmission distances range from 10 to 100 meters, depending on power output and environmental characteristics. Sub GHz channels transmission ranges up to 1km.
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