US 11,808,886 B2
Monitoring living facilities by multichannel radar
Tero Kiuru, Espoo (FI); Mervi Hirvonen, Espoo (FI); and Mikko Metso, Espoo (FI)
Assigned to Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
Appl. No. 17/045,540
Filed by Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
PCT Filed Apr. 5, 2019, PCT No. PCT/FI2019/050274
§ 371(c)(1), (2) Date Oct. 6, 2020,
PCT Pub. No. WO2019/193256, PCT Pub. Date Oct. 10, 2019.
Claims priority of application No. 20185325 (FI), filed on Apr. 6, 2018.
Prior Publication US 2021/0156962 A1, May 27, 2021
Int. Cl. G01S 7/41 (2006.01); G01S 7/292 (2006.01); G01S 13/32 (2006.01); G01S 13/42 (2006.01); G01S 13/48 (2006.01); G01S 13/524 (2006.01); G01S 13/534 (2006.01); G01S 13/89 (2006.01); G01S 13/88 (2006.01)
CPC G01S 7/415 (2013.01) [G01S 7/2925 (2013.01); G01S 13/325 (2013.01); G01S 13/426 (2013.01); G01S 13/48 (2013.01); G01S 13/5242 (2013.01); G01S 13/534 (2013.01); G01S 13/89 (2013.01); G01S 7/417 (2013.01); G01S 13/886 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for monitoring living facilities by a multichannel radar, comprising:
scanning, by a multichannel radar or at least one processing unit connected to the radar, a field of view within a frequency range from 1 to 1000 GHz, using a plurality of radar channels of the radar;
generating, by the radar or the processing unit connected to the radar, image units for a radar image on the basis of results of the scanning, wherein the image units comprise at least amplitude and phase information;
determining, by the radar or the processing unit connected to the radar, on the basis of the image units information indicating at least one error source of a physical movement of the radar and interrelated movements of targets within the field of view;
compensating, by the radar or the processing unit connected to the radar, results of the scanning on the basis of the determined error source;
generating, by the radar or the processing unit connected to the radar, a radar image on the basis of the compensated results;
determining a number of moving targets, on the basis of the number of separate sets of the image units identified from the radar image; and
entering the radar to a power saving mode, when the number of moving targets is one or less, wherein the power saving mode comprises that the radar is controlled to scan the field of view using a reduced number of radar channels.