Why Sequitur

The three main reasons to choose Sequitur

Sequitur RTLS is based on proprietary UWB communication and tracking schemes exploiting the Decawave chipset, which offers outstanding performance and robustness. It benefits of more than ten years of R&D experience in localization systems, radio networks and electronics.
Not only accuracy, but a reliable solution for your localization projects.

1

In-Tag | Position calculation


2

Fault tolerance | Easy installation


3

Flexible | Hybrid architecture


Scalability
Sequitur
System based on a modular and asynchronous network, without the need of neither a master node nor any form of clustering/coordination. Any addition/removal of anchors can be easily managed on the basis of future changes of the environment or application.

Other solutions
Fixed networks of anchors requiring a-priori planning. Any change of the anchors’ architecture needs adaptation.
“Decentralized” architecture: navigation capability
Sequitur
Decentralized architectures (both TDOA and TWR) performing the estimation of the tag position in the tag itself, allowing fast interaction with autonomous systems (robots, drones, etc.). Position available at tag side with no external connections. Zero latency and outstanding robustness due to the lack of unreliable radio links.

Other solutions
Most of the UWB indoor positioning systems perform position calculation only on a central unit (server). Wireless connection necessary for navigation leads to latency and unreliability.
Robustness with respect to failures
Sequitur
Architecture based on asynchronous coordination among the anchors; the failure of any anchor or of any communication link does not compromise the localization of tags.

Other solutions
Failure of a master anchor compromises all the cluster of anchors connected to that master. Failure of the communication network between anchors and the central unit compromises the localization.
Localization Engine
Sequitur
Possibility of coexistence between powerful tags estimating their position, as done in standard GNSS receivers (InGPS) and low-complexity, small and battery-powered tags (InTracking) whose positions are computed by a central server. Infinite number of tags localized simultaneously at the maximum refresh rate. No network necessary for InGPS (fully distributed).

Other solutions
Complex central unit estimating the position of all the tags. Reliable network connections are mandatory for operations. The positioning refresh rate always scales with the number of tags.
Network and synchronization
Sequitur
Not needed for InGPS. Only Ethernet for InTracking. No additional cables, no master nodes. Fast and easy installation and low-cost infrastructure.

Other solutions
Necessity of cable synchronization or master anchors for wireless synchronization. Presence of clusters of anchors. Complicated deployment, high cost and network planning mandatory.
Accuracy and reliability
Sequitur
Beyond state-of-the-art localization engine. Reliable locations reported. Automatic detection of outliers and out-of-service events. Robust and automatic reset of the localization engine. Automatic neighbor anchors’ discovery and seamless handover.

Other solutions
Clustered networks with scarce robustness in case of failure of anchors, network or localization engine.