Abstract: A method, system, and computer program product for determining a distance between persons by means of a plurality of battery powered devices each include using ultra-wideband (UWB) tags and UWB anchors, wherein battery powered devices are configured to periodically or quasiperiodically repeat a typical operating pattern, and upon receipt of an announcing signal from a first device by a second device, initiate an atypical operating pattern to determine the distance.

Abstract: The invention relates to a method, system and computer program product for determining a position of a person with respect to a blind spot of a vehicle. In a first aspect, the invention relates to a method for determining a position of a person with respect to a blind spot of a vehicle. In a second and third aspect, the invention relates to a system and a computer program product, respectively, for determining a position of a person with respect to a blind spot of a vehicle. Embodiments of the present invention are discussed throughout the claims, description and figures.

Abstract: The present invention relates to a method, a system and a computer program product for determining a position relative to a confined space. For this purpose, one or more UWB anchors are provided on the confined space, a distance of the UWB item relative to the one or more UWB anchors is repeatedly determined, a variability is determined based on the repeatedly determined distances and it is determined whether the UWB item is in the confined space, by comparing said variability with a predetermined variability limit value.

Abstract: The invention relates to a method, system and computer program product for determining a distance between persons by means of a plurality of battery powered devices. The device is configured to perform a typical and atypical operating pattern, with the advantage of a longer device operating time.

Abstract: The present invention relates to a method, a system and a computer program product for determining a position relative to a confined space. For this purpose, one or more UWB anchors are provided on the confined space, a distance of the UWB item relative to the one or more UWB anchors is repeatedly determined, a variability is determined based on the repeatedly determined distances and it is determined whether the UWB item is in the confined space, by comparing said variability with a predetermined variability limit value.