Energy-balanced and latency-constrained routing methods in wireless network

Patent metadata

Field	Value
Publication number	US-11516723-B2
Application number	US-201917254061-A
Country	US
Kind code	B2
Filing date	Sep 26, 2019
Priority date	Oct 19, 2018
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A method of operating an access control system comprising a plurality of access controls, the method comprising: determining an energy metric of each of the plurality of access controls; determining a latency metric of each of the plurality of access controls; transmitting the energy metric of each of the plurality of access controls; transmitting the latency metric of each of the plurality of access controls; collecting the energy metric and the latency metric at a head node or collecting energy metric at each of the plurality of access controls from a 1-hop transmission distance; and determining a data route through the plurality of access controls in response to the energy metric of each of the plurality of access controls and the latency metric of each of the plurality of access controls.

First claim

What is claimed is:

1. A method of operating an access control system comprising a plurality of access controls, the method comprising:
determining an energy metric of each of the plurality of access controls at each of the plurality of access controls;
determining a latency metric of each of the plurality of access controls at each of the plurality of access controls;
transmitting the energy metric of each of the plurality of access controls from each of the plurality of access controls;
transmitting the latency metric of each of the plurality of access controls from each of the plurality of access controls;
collecting the energy metric and the latency metric at a head node or collecting energy metric at each of the plurality of access controls from a 1-hop transmission distance; and
determining a data route through the plurality of access controls in response to the energy metric of each of the plurality of access controls and the latency metric of each of the plurality of access controls.

2. The method of claim 1 , wherein the energy metric includes at least one of a state of charge of a power supply of each of the plurality of access controls, an energy cost scheduled of each of the plurality of access controls, and the energy consumption required to transfer data via each of the plurality of access controls.

3. The method of claim 1 , wherein the latency metric includes at least one of access delays of each of the plurality of access controls and transmission delays of each of the plurality of access controls.

4. The method of claim 1 , wherein the latency metric and the energy metric are transmitted wirelessly via Bluetooth.

5. The method of claim 1 , wherein each of the plurality of access controls are door locks.

6. The method of claim 2 , wherein the power supply includes a battery system.

7. The method of claim 1 , wherein transmitting the energy metric of each of the plurality of access controls to each of the plurality of access controls further comprises:
propagating the energy metric amongst the plurality of access controls until the energy metric is received by the head node or transmitting the energy metric to each of the plurality of access controls using a 1-hop transmission distance.

8. The method of claim 1 , wherein transmitting the latency metric of each of the plurality of access controls to each of the plurality of access controls further comprises:
propagating the latency metric amongst the plurality of access controls until the latency metric is received by the head node or transmitting the latency metric to each of the plurality of access controls using a 1-hop transmission distance.

9. The method of claim 1 , wherein the head node is one of the plurality of access controls.

10. The method of claim 1 , wherein the data route is at least one of an energy-constrained route and a latency-constrained route.

Assignees

• Carrier Corp

Inventors

• Lin Chih-Kuang
• Agrawal Piyush
• Tiwari Ankit
• Kuenzi Adam
• Lang Michael

Classifications

• H04W40/24

  Connectivity information management, e.g. connectivity discovery or connectivity update · CPC title

• H04W40/22

  using selective relaying for reaching a BTS [Base Transceiver Station] or an access point · CPC title

• H04W40/08

  based on transmission power · CPC title

• H04L43/0858

  One way delays · CPC title

• H04L45/123

  Evaluation of link metrics (techniques for monitoring network metrics H04L43/08) · CPC title