Self-organizing hierarchy for an internet of things network
View Patent ↗A self-organizing hierarchical system of wireless nodes includes a first plurality of wireless nodes that self-identify as child nodes and includes a second plurality of wireless nodes that self-identify as parent nodes. Each wireless node is configured to wirelessly communicate with other wireless nodes of the system. Each child node broadcasts a respective identifier and its role as a child node to one or more parent nodes in an environment of the respective child node. Each parent node scans a respective environment for available child nodes and transmits to each available child node in the environment a schedule for communication between the respective available child node and the respective parent node. Each child node communicates with a respective parent node during time slots that are assigned to the child node based on the received schedule for the child node from the respective parent node.
1. A system comprising:
a first plurality of tape nodes that self-identify as child nodes, each tape node configured to wirelessly communicate with other wireless nodes of the system including other tape nodes; and
a second plurality of tape nodes that self-identify as parent nodes, each tape node configured to wirelessly communicate with other wireless nodes of the system including other tape nodes, wherein
each child node broadcasts a respective identifier and its role as a child node to one or more parent nodes in an environment of the respective child node,
each parent node scans a respective environment for available child nodes and transmits to each available child node in the environment a schedule for communication between the respective available child node and the respective parent node,
and each child node communicates with a respective parent node during time slots that are assigned to the child node based on the received schedule for the child node from the respective parent node.
2. The system of claim 1 , further comprising:
a gateway node configured to wirelessly communicate with tape nodes of the system using a first wireless communication system of the gateway node.
3. The system of claim 2 , wherein the gateway node comprises a second wireless communication system for communicating with other nodes of the wireless system.
4. The system of claim 3 , further comprising a server, wherein the gateway node is configured to communicate with the server using the second wireless communications system or a third wireless communication system of the gateway node.
5. The system of claim 2 , wherein the gateway node is configured to communicate with the parent nodes, but not with the child nodes.
6. The system of claim 2 , wherein the gateway node indirectly communicates with a group of child nodes by communicating with a corresponding parent node for the group of child nodes.
7. The system of claim 1 , wherein if a tape node of the first plurality of tape nodes fails to wirelessly communicate with any parent nodes, the tape node changes its role from the child node role to the parent node role.
8. The system of claim 1 , wherein each of the tape nodes in the first plurality and the second plurality self-identify as a child node or a parent node based on a group identifier of the tape node.
9. The system of claim 8 , wherein each of the tape nodes in the first plurality and the second plurality generate the group identifier based on a unique identifier of the tape node.
10. The system of claim 9 , wherein the group identifier is a compressed or truncated version of the tape node.
11. The system of claim 8 , wherein the group identifier for a tape node is predetermined and stored on the tape node.
12. The system of claim 1 , wherein a child node are configured to communicate outside of the time slots from the received schedule, in response to the child node detecting an event.
13. The system of claim 12 , wherein the event is a detected movement of the child node.
14. The system of claim 1 , wherein in response to detecting a movement of a first child node, the first child node searches for a parent node within communication range of the first child node.
15. The system of claim 14 , wherein the child node discovers a new parent node and communicates with the new parent node, according to a schedule received from the new parent node.
16. The system of claim 1 , wherein a parent node instructs a corresponding child node to adjust the output strength of a wireless communication system of the child node, based on a detected distance between the parent node and the child node.
17. The system of claim 1 , wherein each of the tape nodes of the first plurality and the second plurality is a device comprising an adhesive tape platform.
18. The system of claim 16 , wherein at least one of the tape nodes of the first plurality and the second plurality is adhered to an asset that the at least one tape node is configured to track.
19. The system of claim 1 , wherein, outside of the time slots that are assigned to the child node based on the received schedule from the respective parent node, the child node reduces its wireless communication activity or conserves battery.
20. A method comprising:
self-identifying, by a tape node, as a child node in an IoT system, the tape node configured to wirelessly communicate with other wireless nodes of the system including other tape nodes;
broadcasting, by the child node, a respective identifier and the self-identified role as a child node to one or more parent nodes in an environment of the child node;
receiving, by the child node, schedule for communication between the child node and a first parent node of the one or more parent nodes in the environment,
communicating, by the child node, with the first parent node during time slots that are assigned to the child node based on the received schedule from the respective parent node.