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RTLS – Anchors

Anchors are fixed devices in an RTLS system. Their main function is to receive blinks from location tags and forward them to the location server – nanoLES. Then nanoLES performs wireless synchronization of anchors and calculates the tag position using the location method TDOA (time difference of arrival). For 1D location application, at least two anchors are required for reliable location data. Theoretically, three anchors are sufficient for 2D location. However, our experience shows that at least six anchors are needed for 2D location in an RTLS installation to get reliable location data.

Nanotron provides several variants of anchor to meet different application requirements. The four of them are nanoANQ EM, nanoANQ, nanoANQ EA and nanoANQ XT, see pictures below.

Through their air interface, anchors support bidirectional payload exchange between the location server and the individual tags.

All anchor variants feature a power amplifier which is adjustable from 0 to 19 dBm for robust communication and long range.

The anchors utilize IP-based data and management protocols and feature a built-in DHCP client. Thus they can be configured remotely through their API over the network.

nanoANQ EM is an embedded anchor module which can be integrated to any communication substation by interfacing directly with an Ethernet MAC or PHY via RMII. The credit card size (85.6 mm x 54.0 mm) design supports any 2.4 GHz antenna through its two respective U.FL connectors for two independent radio channels.

nanoANQ features two SMA antenna connectors and an Ethernet port with PoE to connect to the network. At only 119 mm x 98 mm x 18 mm, the compact design of nanoANQ simplifies system deployment. Three power supply options are available: DC IN, USB and Power-Over-Ethernet (PoE). The DC IN supply can be provided by a wide range of voltages between 12 and 24 V DC.

nanoANQ EA features two SMA antennas and an Ethernet port with PoE to connect to the network. Two power supply options are available: DC IN and Power-Over-Ethernet (PoE). The DC IN supply can be provided by a wide range of voltages between 12 and 24 V. nanoANQ EA is delivered in a robust housing with IP 65 protection against dust, moisture and water. Power supply and CAT 6 Ethernet cables are connected through rubber-sealed openings at the back of the housing.

nanoANQ XT has almost the same design as nanoANQ EA. The only difference is that nanoANQ XT features two integrated antennas.

RTLS Products

Location Server Software

The central software component of RTLS

Anchors

Fixed devices in an RTLS system

Tags

Tags are wireless devices which send out blinks

Integration Kit

For System Integrators

nanoLOC Ranging Kit II

Setup tool for monitoring and improving the infrastructure