US 2019/0200364 A1 · WIRELESS SENSOR NETWORK

Abstract

One or more techniques and/or systems are provided for automatically forming a wireless sensor network, implementing power management for the wireless sensor network, and/or self-healing within the wireless sensor network. For example, hub devices, configured to forward messages through the wireless sensor network to a gateway device having access to a network, may automatically join and configure into the wireless sensor network by locating and connecting to master devices using signal frequencies representing numbers of hops to the gateway device. A hub device may be configured to transition between a low power sleep state for power conservation and an awakened normal operational state for transmitting timing signals according to a duty cycle, and thus the hub device may be capable of operating from a battery. If a hub device determines that a master device has become inoperable, the hub device may automatically search for a new master device.

Claims20

Dependent claims

A system, comprising:

a processor;
and
memory comprising instructions that when executed by the processor perform operations comprising:
iteratively listening on a sequence of frequencies until a first device is identified, wherein:
each frequency of the sequence of frequencies is associated with a specified number of hops to a gateway device, and
a frequency of a first signal broadcast by the first device for identifying the first device is indicative of a number of hops between the first device and the gateway device.

3 more elements

A method, comprising:

establishing a first communication channel between a first device of a wireless sensor network and a second device of the wireless sensor network by detecting, at the second device, a first signal broadcast by the first device, wherein:
the first signal has a first frequency, and
the first frequency is indicative of a first number of hops between the second device and the first device;
and
establishing a second communication channel between the second device and a third device by broadcasting, from the second device, a second signal having a second frequency, wherein:
the second frequency is indicative of a second number of hops between the first device and the third device,
the second number is greater than the first number by one, and
the first communication channel and the second communication channel are used for forwarding event data from the third device to the first device.

5 more elements

Dependencies are inferred from the claim text.

Wireless sensor network

Life of this patent

Wireless sensor network

Life of this patent

Abstract

Claims20