Power efficient ultra-wideband (UWB) tag for indoor positioning
AssigneeJohnson Controls Tyco IP Holdings LLP
InventorsWalter Andrew Martin, Yucel Aydogan, Irene Lam
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Abstract
A system provides ultra-wideband (UWB) positioning. The system exchanges ranging signals at a first rate between a UWB beacon and a UWB tag. The system then determines movement or location information of the UWB tag; and select, based on the movement or location information, a second rate for exchanging subsequent ranging signals between the UWB beacon and the UWB tag. The system then exchanges the subsequent ranging signals at the second rate between the UWB beacon and the UWB tag.
Claims20
An ultra-wideband “UWB” positioning method, comprising:
- exchanging ranging signals at a first rate between a UWB beacon and a UWB tag associated with a person;
- determining movement information of the UWB tag based on a movement detection device within a mobile device of the person that is associated with the UWB tag, wherein the mobile device is different than the UWB tag;
- selecting, based on the movement information, a second rate for exchanging subsequent ranging signals between the UWB beacon and the UWB tag;
- and
- exchanging the subsequent ranging signals at the second rate between the UWB beacon and the UWB tag.
An ultra-wideband “UWB” beacon apparatus comprising:
- a UWB communication component configured for exchanging ranging signals at a first rate with a UWB tag apparatus associated with a person;
- a controller configured for:
- determining movement information of the UWB tag apparatus based on a movement detection device within a mobile device of the person that is associated with the UWB tag apparatus, wherein the mobile device is different than the UWB tag apparatus;
- and
- selecting, based on the movement information, a second rate for exchanging subsequent ranging signals between the UWB beacon apparatus and the UWB tag apparatus;
- and
- the UWB communication component further configured for exchanging the subsequent ranging signals at the second rate between the UWB beacon apparatus and the UWB tag apparatus.
An ultra-wideband “UWB” tag apparatus associated with a person, comprising a communication component configured for:
- exchanging ranging signals at a first rate with a UWB beacon apparatus, causing the UWB beacon apparatus to determine movement information of the UWB tag apparatus based on a movement detection device within a mobile device of the person that is associated with the UWB tag apparatus, wherein the mobile device is different than the UWB tag apparatus, and select, based on the movement information, a second rate for exchanging subsequent ranging signals between the UWB beacon apparatus and the UWB tag apparatus;
- and
- exchanging the subsequent ranging signals at the second rate with the UWB beacon apparatus.
Dependencies are inferred from the claim text.