Greetings,
\n@maximilianarnold As I look into the UWB and RSSI zeros or non-zeros state, I notice it make a hugh difference in different rooms. figure UWB-range heatmap
\nFor UWB, since all 3 UWB-anchor is in the right-room, only in right-room UWB work, all other two we barely have UWB and these value are all zero.
\nWhile for RSSI and CSI, non-zero RSSI and CSI almost all in buttom-left room, all other all most zeros, this confuse me a bit since I see each room has almost 3 CSI anchors figure RSSI- heatmap , it is odd when you move to right-room, but you still keep receiving RSSI/CSI from these anchors in buttom-left room but not nearest anchor in right-room.
\nBest
\nJet
", "messages": [ { "id": "1368469", "postDate": "06/28/2021 15:44:32", "content": "Greetings,
\n@maximilianarnold As I look into the UWB and RSSI zeros or non-zeros state, I notice it make a hugh difference in different rooms. figure UWB-range heatmap
\nFor UWB, since all 3 UWB-anchor is in the right-room, only in right-room UWB work, all other two we barely have UWB and these value are all zero.
\nWhile for RSSI and CSI, non-zero RSSI and CSI almost all in buttom-left room, all other all most zeros, this confuse me a bit since I see each room has almost 3 CSI anchors figure RSSI- heatmap , it is odd when you move to right-room, but you still keep receiving RSSI/CSI from these anchors in buttom-left room but not nearest anchor in right-room.
\nBest
\nJet
", "rawMarkdown": "Greetings,\n\n@maximilianarnold As I look into the UWB and RSSI zeros or non-zeros state, I notice it make a hugh difference in different rooms. [figure UWB-range heatmap](https://drive.google.com/file/d/1vMtFxiIhAB1a6I6JChHyBLTzoPSR958b/view)\n\nFor UWB, since all 3 UWB-anchor is in the right-room, only in right-room UWB work, all other two we barely have UWB and these value are all zero. \n\n\nWhile for RSSI and CSI, non-zero RSSI and CSI almost all in buttom-left room, all other all most zeros, this confuse me a bit since I see each room has almost 3 CSI anchors [figure RSSI- heatmap](https://drive.google.com/file/d/1vMSQHo2MchPY1BoqIsCzI8YDurV5ILqt/view?usp=sharing) , it is odd when you move to right-room, but you still keep receiving RSSI/CSI from these anchors in buttom-left room but not nearest anchor in right-room.\n\n\nBest\n\nJet", "votes": null }, { "id": "1368533", "postDate": "06/28/2021 16:42:47", "content": "Hi,
\nthat is completely correct. UWB has the issues of penetrating through walls, and thus only in the right room all the time LoS holds.
\nFor RSSI and CSI it can happen, since the coverage of these are very large and the one who gets in first, will be captured and the other packet dropped. If you are interested I can provide you with pictures how they are placed, as they have a directional antenna.
\nBR
\nMax
Yes, please. You can attached them in this thread or email to me.
\nI guess UWB should be able to cover several rooms, it is just in NLOS case its range value or ToF is not reliable, it could go up to 100 meters due to several ping-pong against the walls ….
\nWhile for RSSI, it is about how to setup streaming packages in 1AP-xStation and synchronization, it is feasiable in nexmon while am not clear with ESP32.
", "rawMarkdown": "Yes, please. You can attached them in this thread or email to me.\n\nI guess UWB should be able to cover several rooms, it is just in NLOS case its range value or ToF is not reliable, it could go up to 100 meters due to several ping-pong against the walls ....\n\nWhile for RSSI, it is about how to setup streaming packages in 1AP-xStation and synchronization, it is feasiable in nexmon while am not clear with ESP32.", "votes": null }, { "id": "1552973", "postDate": "10/21/2021 19:15:43", "content": "What are the two fields associated with each UWB anchor? The first value seems to be range, but not sure what the second value is. For example, UWB is shaped [747853,3,2], where the 1st is the number of points, 2nd is number of anchors, and 3rd is some combination of distance from robot and something else.
\nThanks,
\nLuis
Hi,
\nthat is completely correct. UWB has the issues of penetrating through walls, and thus only in the right room all the time LoS holds.
\nFor RSSI and CSI it can happen, since the coverage of these are very large and the one who gets in first, will be captured and the other packet dropped. If you are interested I can provide you with pictures how they are placed, as they have a directional antenna.
\nBR
\nMax
Yes, please. You can attached them in this thread or email to me.
\nI guess UWB should be able to cover several rooms, it is just in NLOS case its range value or ToF is not reliable, it could go up to 100 meters due to several ping-pong against the walls ….
\nWhile for RSSI, it is about how to setup streaming packages in 1AP-xStation and synchronization, it is feasiable in nexmon while am not clear with ESP32.
", "votes": null, "replies": [] } ] }, { "id": 1552973, "author_name": "lgarrido581", "author_url": "", "post_date": "10/21/2021 19:15:43", "content": "What are the two fields associated with each UWB anchor? The first value seems to be range, but not sure what the second value is. For example, UWB is shaped [747853,3,2], where the 1st is the number of points, 2nd is number of anchors, and 3rd is some combination of distance from robot and something else.
\nThanks,
\nLuis