Multiple appearance protocol for timely organized ad hoc network

• US 9,439,218 B2
• Filed: 01/06/2014
• Issued: 09/06/2016
• Est. Priority Date: 02/20/2007
• Status: Active Grant

• Current Assignee: Intech 21, Inc.
• Original Assignee: Intech 21, Inc.
• Inventors: Kats, Marat, Zelmanovich, Helena, Tchibirev, Igor, Izvarin, Yuriy, Bilenko, George, Zelmanovich, Victor
• Primary Examiner(s): Crompton, Christopher R
• Application Number:
  US14/148,593
• Publication Number:
  US 20140192787A1
• Time in Patent Office: 974 Days
• Field of Search: 370/337
• US Class Current: 1/1
• CPC Class Codes: H04W 74/02 Hybrid access
• CPC Class Codes: H04W 8/30 Network data restoration; Network data reliability; Network data fault tolerance

Abstract

The present invention comprises a plurality of timely organized ad hoc data communications networks and a method for data communication. A network from the plurality of networks includes media-independent communications links and plurality of network nodes, where a network node in the plurality could be coupled to at least one other network node via a media independent communication link, and a plurality of access points, where each access point in the plurality is coupled to at least one other access point via another media-independent communications link. The network communicates during a data collection cycle that includes a broadcast interval, a time-slotted communications interval and a random access time-slotted communications interval. The plurality of network nodes are arranged in a self-assigned hierarchy where one or more nodes in the plurality of network nodes can be assigned more than one time slot to transmit the network information messages.

Claims

1. A data communications network having time-slotted communication intervals, said time-slotted communication intervals comprising an assigned time-slotted communication interval and a random access time-slotted communication interval, said data communications network comprising:

a plurality of network nodes arranged in a self-assigned hierarchy;

at least one network node in the plurality of network nodes assigned at least one assigned time slot during a single time-slotted communication interval to transmit and receive network node information, said network node information contained within a data packet, wherein said at least one network node obtains at least one additional assigned time slot automatically by previously appearing and transmitting information in at least one random time slot during a previous random access time-slotted interval which was utilized by said at least one network node without a prior reservation request.

2. The network according to claim 1, further comprising a media-independent communications link and a plurality of access points, wherein each access point is coupled to at least one other access point via the media-independent communications link.

3. The network according to claim 1, wherein said data packet comprises information received from at least one from the group consisting of sensors, measuring devices, meters, and controlling devices.

4. The network according to claim 3, wherein said network node information in said data packet comprises at least from the group consisting of temperature of a room, lighting conditions of a room, energy usage, current usage, voltage measurements, a power factor for at least one phase of electricity, smoke and CO detector data, elevator(s) conditions, door activation data, heating ventilation and air conditioning (HVAC) system parameters and controls, pressure data, and vibration data.

5. The network according to claim 2, wherein at least one of the access points is assigned one of a plurality of hierarchal levels, and each of the plurality of network nodes is operable to assign itself one of the plurality of hierarchal levels in accordance with a number of intervening transmissions required to ensure that the at least one node information message reaches at least one of the access points.

6. The network according to claim 5, wherein the hierarchal levels are chosen in accordance with a dynamic self routing protocol.

7. The network according to claim 6, wherein the respective hierarchal levels assigned to the access points are the same.

8. The network according to claim 7, wherein each of the plurality of network nodes is further operable to transmit its assigned hierarchal level.

9. The network according to claim 8, wherein one or more network nodes are operable to package their hierarchal level into the data packet transmitted by the network node, the network node being further operable to transmit the data packet.

10. The network according to claim 9, wherein at least one of the access points is operable to transmit at least one acknowledgment/command message destined for at least one source network node of the plurality of network nodes, the at least one source network node being a source of at least a portion of the at least one network node information message.

11. The network according to claim 10, wherein the at least one source network node is configured to retransmit the at least one acknowledgment/command message.

12. The network according to claim 11, wherein each of the plurality of network nodes is operable to receive and retransmit the at least one acknowledgment/command message.

13. The network according to claim 1, further comprising a server coupled to the access points via the media independent communications link wherein the access point operable to inform the remaining ones of the access points of each transmission and receipt of data is also operable to inform the server of each transmission and receipt of data.

14. The network according to claim 2, further comprising:

a second media-independent communications link; and

a first media independent network node in the plurality of network nodes coupled to the second media-independent communications link.

15. The network according to claim 14, further comprising:

at least one additional media independent network node in the plurality of network nodes coupled to the second media-independent communications link.

16. The network according to claim 14, further comprising:

an access point in the plurality of access points coupled to the second media-independent communications link.

17. The network according to claim 16, wherein a hierarchal level of at least one network node is reduced by communicating through the second media-independent communications link.

18. The network according to claim 1, wherein the at least one network node is operable to re-transmit subsequent data packets during the same timeslot within the same time-slotted communication interval before the previously transmitted data packet reaches a destination.

19. A plurality of data communications networks having time-slotted communication intervals, said time-slotted communication intervals comprising an assigned time-slotted communication interval and a random access time-slotted communication interval, said data communications network comprising:

a plurality of media-independent communications links;

a plurality of access points in each data network, wherein each access point in the plurality is coupled to at least one other access point in the plurality via a media-independent communications link in the plurality of media-independent communications links;

a plurality of network nodes in each network, wherein each node in each network is arranged in a self-assigned hierarchy; and

a first network node in a first plurality of network nodes in a first network assigned more than one assigned time slot during a single time-slotted communication interval to transmit and receive more than one network node information message;

wherein the first network node obtains the more than one assigned time slot automatically without a reservation request by appearing and transmitting information in time slots during a previous random access time-slotted interval; and

wherein said network node information comprises information received from at least one from the group consisting of sensors, measuring devices, meters, and controlling devices.

20. The plurality of data communications networks according to claim 19, wherein said network node information comprises at least one data packet comprising at least from the group consisting of temperature of a room, lighting conditions of a room, energy usage, current usage, voltage measurements, a power factor for at least one phase of electricity, smoke and CO detector data, elevator(s) conditions, door activation data, heating ventilation and air conditioning (HVAC) system parameters and controls, pressure data, and vibration data.

21. The plurality of data communications networks according to claim 19, wherein said network node information comprises at least one data packet comprising a power factor for at least one phase of electricity.