Secure Care Products Inc INDOORNODE2 Manuale Utente
Doc. No.: A03490690 Rev.: 1 ECO: 12274 Date 11/10/2016 22
SECTION 8 THEORY OF OPERATION
Real Time Location System
There are several types of Real Time Location System (RTLS) technologies. The ENVisionIT system can
determine a tag location by the data each node sends to the system.
The Secure Care ENVisionIT RTLS system uses a minimum of 4 node transceivers to locate a tag. The receivers
communicate with a primary node for synchronization and management.
Each node is located in a very precise location within the monitored area. Using this information along with the
time difference the signal arrived at each node (TDOA), the ENVisionIT system plots the tag location.
The nodes can use WiFi or LAN for communications between nodes and the ENVisionIT server.
determine a tag location by the data each node sends to the system.
The Secure Care ENVisionIT RTLS system uses a minimum of 4 node transceivers to locate a tag. The receivers
communicate with a primary node for synchronization and management.
Each node is located in a very precise location within the monitored area. Using this information along with the
time difference the signal arrived at each node (TDOA), the ENVisionIT system plots the tag location.
The nodes can use WiFi or LAN for communications between nodes and the ENVisionIT server.
Ultra-Wideband
Ultra-wideband (UWB) is a radio technology that uses a very low energy level for short-range, high-bandwidth
communications over a large portion of the radio spectrum. This system operates in the 4GHz and 6GHz spectrum.
Depending on the country, the ENVisionIt system will either be configured for UWB band 2 or UWB band 5. Most
installations in the U.S. will use UWB band 5. UWB band 2 is used in Canada, Australia, and New Zealand and
other countries in Europe.
communications over a large portion of the radio spectrum. This system operates in the 4GHz and 6GHz spectrum.
Depending on the country, the ENVisionIt system will either be configured for UWB band 2 or UWB band 5. Most
installations in the U.S. will use UWB band 5. UWB band 2 is used in Canada, Australia, and New Zealand and
other countries in Europe.
ENVisionIT RTLS Nodes
The ENVisionIT nodes are microprocessor-based units that recognizes UWB signals sent from Secure Care
Products RTLS Tags. Communication between nodes is via Wi-Fi or wired network switch and the Windows server
running Secure Care ENVisionIT software.
The nodes are categorized into either an ANCHOR node or a standard node.
Every node must either be an anchor node or have at least one anchor node associated with it.
The standard node communicates with the anchor node for synchronization and control. Each node will send the tag
information it is detecting along with the position information to the server.
The anchor nodes then passes that information on to the ENVisionIT system. Once the ENVisionIT system has
received the information from the nodes, it can calculate the tag position and report it on the GUI.
Communications between the nodes and RTLS tags is over UWB communications. Tag recognition is via MAC
address, the last 4 octets of which are decoded as the TAG ID.
Anchor nodes use MAC addresses to talk to standard nodes. All nodes use their assigned IP address to
communicate to the ENVisionIT system.
Products RTLS Tags. Communication between nodes is via Wi-Fi or wired network switch and the Windows server
running Secure Care ENVisionIT software.
The nodes are categorized into either an ANCHOR node or a standard node.
Every node must either be an anchor node or have at least one anchor node associated with it.
The standard node communicates with the anchor node for synchronization and control. Each node will send the tag
information it is detecting along with the position information to the server.
The anchor nodes then passes that information on to the ENVisionIT system. Once the ENVisionIT system has
received the information from the nodes, it can calculate the tag position and report it on the GUI.
Communications between the nodes and RTLS tags is over UWB communications. Tag recognition is via MAC
address, the last 4 octets of which are decoded as the TAG ID.
Anchor nodes use MAC addresses to talk to standard nodes. All nodes use their assigned IP address to
communicate to the ENVisionIT system.
Anchor NODE
Anchor to Standard node communication
The master node is responsible for the synchronizing of the nodes it is master for with the rest of the ENVisionIT
system. This synchronizing of nodes is critical to correct operation of the system.
It also manages the data from each node, and relaying that data on to the ENVisionIT system.
The nodes will auto-establish a network with other nodes upon power up. They will continually look for other
nodes and will begin receiving data from them once they are configured into the ENVisionIT systems Device
Configuration.
system. This synchronizing of nodes is critical to correct operation of the system.
It also manages the data from each node, and relaying that data on to the ENVisionIT system.
The nodes will auto-establish a network with other nodes upon power up. They will continually look for other
nodes and will begin receiving data from them once they are configured into the ENVisionIT systems Device
Configuration.