What is the accuracy of the system?
The accuracy, given that there is a line of sight between Tag and Anchors, is sub-meter. In good conditions, the average accuracy is 30 cm.
Is this technology similar to Wi-Fi, Bluetooth etc.?
Just like Bluetooth and Wi-Fi, Ultra Wide Band is a radio technology, however it is quite different from the other technologies. It is strongly resistant to interference and enables very precise positioning, a feat that both Bluetooth and Wi-Fi or other radio-based technologies simply cannot provide.
It utilizes very wide bandwidth (hence the name) typically 20x wider than Wi-Fi. We only use Wi-Fi as a data backhaul between Anchors and the server as an alternative to Ethernet.
What kind of Ethernet cables do you use?
We use standard Ethernet Cat5 cabling. Of course, you can use higher versions as well.
What kind of Wi-Fi connection does your system use?
We use 2.4 GHz Wi-Fi with a dedicated Access Point.
Can I use my own Access Point for your system?
We strongly recommend using only the Access Points tested and evaluated by us. We can tell you the types and send you a configuration file for them.
What is the difference between Ethernet and Wi-Fi versions of the RTLS kit?
The difference lies only in the data backhaul. Generally, Ethernet is better for permanent and larger installation, while Wi-Fi is great for demonstration and evaluation purposes. Both kits are designed as a plug-and-play solution, so it is up to you which version is more suitable for your application.
How are the Anchors deployed? Are there any rules for the deployment?
There are several conditions that should be met in order to achieve highest accuracy possible. These conditions are described in detail in the RTLS TDoA kit Install guide. Please follow it closely during the system installation.
Do you use a server on premises or a cloud connection?
For larger installations, we deploy a host server on the customer’s premises. Most customers want to have their sensitive location data stored locally.
How many Anchors are needed to calculate position?
Just like GPS, the system needs at least four Anchors to calculate precise position. However, we also recommend using at least five Anchors, so you have one redundant Anchor to ensure optimum performance.
What is the frequency and bandwidth of the system? What about interference?
The system operates between 3.5 – 7 GHz in four 500 MHz wide channels. Despite operating in such a wide band, the nature of UWB signals ensures that there is no interference with any other wireless systems operating in the same band.
What area can be covered by RTLS Kit?
RTLS Kit can cover an area of up to 500 square meters.
What is the communication distance between Tags and Anchors?
The reliable communication distance using maximum transmission power reaches around 60 meters. However, the location distance is around 30 meters.
Is there a limit on the total number of devices? How large is the maximum area that the system can cover?
There is no limit on the number of Anchors in the system, which means that the system is fully scalable. This also implies that the location area is also unlimited.
Is the Z coordinate also available?
Yes, however this feature requires special deployment of the Anchors. The Anchors must be deployed diagonally plus 3D positioning must be enabled in software. However, by using barometer the Z axis can be calculated with a precision below 50 centimeters.