Matrice di varianza covarianza

maria-palmisano · 4 Gennaio 2022, 11:08am

Salve,
a seguito del vostro corso sto preparando il mio primo tipo mappale, ma quando carico il libretto .dat, scaricato da strumento, in pregeo mi segnala questo errore sul punto 118:
[AAA] riga n. 22 del libretto delle misure baseline di modulo 37919.05 > 5000 m [circ. 2/88] sprovvista della matrice di varianza covarianza.
Allego sotto il libretto esportato dallo strumento
0|11122021|1|A149|0410|585|xxx|GEOMETRA|BARI|
9|0|10|100|0|PREGEO 10.00-G,APAG 2.08|FR|STRUMENTO: GeoMax GNSS Zenith 35PRO|
1|100|4611304.84,1401418.87,4163930.93|0.000|
6|L2|11122021-09:00|11122021-12:00|RTK|PDOP=2|
2|101|9247.912,30765.418,-20182.641|0.005763,0.001013,0.003564,0.001603,0.000720,0.004798|PDOP=2|3.000|
2|102|9247.907,30765.417,-20182.638|0.004965,0.000879,0.003045,0.001367,0.000626,0.004052|PDOP=2|3.000|FABBRICATO|
2|103|9243.392,30770.188,-20178.190|0.003690,0.000662,0.002283,0.000969,0.000476,0.002943|PDOP=2|3.000|FABBRICATO|
2|104|9241.933,30766.025,-20175.090|0.002120,0.000292,0.001323,0.000556,0.000139,0.001742|PDOP=1|3.000|FABBRICATO|
2|105|9242.001,30765.965,-20175.137|0.001984,0.000270,0.001233,0.000512,0.000118,0.001587|PDOP=1|3.000|FABBRICATO|
2|106|9240.955,30761.182,-20171.700|0.002828,0.000390,0.001735,0.000775,0.000198,0.002338|PDOP=1|3.000|FABBRICATO|
2|107|9245.369,30756.836,-20176.069|0.001688,0.000245,0.001185,0.000433,0.000156,0.001627|PDOP=1|3.000|FABBRICATO|
2|108|9246.873,30761.780,-20179.828|0.004823,0.000649,0.003146,0.001365,0.000463,0.004545|PDOP=1|3.000|FABBRICATO|
2|109|9247.951,30765.451,-20182.637|0.004055,0.000559,0.002663,0.001114,0.000404,0.003765|PDOP=1|3.000|FABBRICATO|
2|110|9252.417,30759.400,-20185.193|0.001331,0.000178,0.000974,0.000313,0.000133,0.001321|PDOP=1|3.000|Muro secco|
2|111|9252.912,30759.050,-20185.264|0.001128,0.000148,0.000836,0.000266,0.000111,0.001147|PDOP=1|3.000|Muro secco|
2|112|9250.429,30748.473,-20175.869|0.000946,0.000107,0.000693,0.000234,0.000084,0.001006|PDOP=1|3.000|Muro secco|
2|113|9252.322,30746.651,-20177.274|0.000931,0.000111,0.000684,0.000228,0.000090,0.000989|PDOP=1|3.000|CORDOLO IN PIETRA|
2|114|9252.332,30746.664,-20177.252|0.001006,0.000088,0.000781,0.000234,0.000057,0.001142|PDOP=1|3.000|CORDOLO IN PIETRA|
2|115|9250.268,30741.036,-20172.757|0.000953,0.000083,0.000736,0.000230,0.000053,0.001099|PDOP=1|3.000|CORDOLO IN PIETRA|
2|116|9243.623,30747.489,-20167.736|0.000935,0.000081,0.000723,0.000228,0.000052,0.001090|PDOP=1|3.000|CORDOLO IN PIETRA|
2|117|9244.655,30750.134,-20169.741|0.000997,0.000089,0.000783,0.000230,0.000060,0.001149|PDOP=1|3.000|CORDOLO IN PIETRA|
2|118|9243.831,30750.569,-20169.489|0.000000,0.000000,0.000000,0.000000,0.000000,0.000000|PDOP=2|3.000|CORDOLO IN PIETRA|
2|119|9244.813,30753.590,-20171.940|0.001105,0.000070,0.000922,0.000258,0.000040,0.001401|PDOP=2|3.000|CORDOLO IN PIETRA|
2|120|9249.178,30749.691,-20174.935|0.001146,0.000073,0.000963,0.000268,0.000039,0.001473|PDOP=2|3.000|CORDOLO IN PIETRA|
2|121|9248.788,30750.650,-20177.365|0.001168,0.000075,0.000985,0.000276,0.000040,0.001529|PDOP=2|3.000|Muro secco|
2|122|9239.836,30758.202,-20170.278|0.001558,0.000085,0.001318,0.000394,0.000028,0.002148|PDOP=2|3.000|Muro secco|
2|123|9239.926,30757.915,-20170.152|0.001476,0.000090,0.001258,0.000359,0.000040,0.002020|PDOP=2|3.000|Muro secco|
2|124|9237.214,30748.673,-20163.664|0.002644,0.000105,0.002317,0.000569,0.000017,0.003542|PDOP=2|3.000|Muro secco|
2|125|9236.720,30750.177,-20164.812|0.001774,0.000084,0.001525,0.000366,0.000028,0.002306|PDOP=2|3.000|Muro secco|
2|126|9240.274,30763.033,-20173.804|0.001645,0.000094,0.001433,0.000326,0.000044,0.002134|PDOP=2|3.000|Muro secco|
2|127|9243.229,30774.182,-20182.006|0.001596,0.000088,0.001365,0.000325,0.000035,0.002041|PDOP=2|3.000|Muro secco|
2|128|9245.174,30782.902,-20188.834|0.001415,0.000083,0.001192,0.000293,0.000034,0.001785|PDOP=2|3.000|Muro secco|
2|129|9245.392,30782.582,-20189.235|0.001331,0.000080,0.001114,0.000275,0.000034,0.001664|PDOP=2|3.000|Muro secco|
2|130|9243.874,30774.537,-20182.744|0.001324,0.000088,0.001127,0.000256,0.000047,0.001635|PDOP=2|3.000|Muro secco|
2|131|9245.415,30782.567,-20189.289|0.001391,0.000086,0.001156,0.000263,0.000041,0.001662|PDOP=2|3.000|Muro secco|
2|132|9261.238,30769.884,-20201.510|0.001273,0.000084,0.001033,0.000263,0.000035,0.001541|PDOP=2|3.000|Muro secco|
2|133|9261.557,30770.099,-20201.871|0.001143,0.000076,0.000915,0.000240,0.000031,0.001371|PDOP=2|3.000|Muro secco|
2|134|9245.054,30782.972,-20189.655|0.001137,0.000074,0.000908,0.000242,0.000028,0.001370|PDOP=2|3.000|Muro secco|
2|135|9252.895,30733.301,-20172.487|0.001294,0.000119,0.000994,0.000318,0.000061,0.001571|PDOP=2|3.000|Muro secco|
2|136|9253.223,30733.268,-20172.805|0.001435,0.000182,0.001143,0.000377,0.000144,0.001758|PDOP=2|3.000|Muro secco|
2|137|9258.137,30755.381,-20190.611|0.001569,0.000081,0.001222,0.000260,0.000037,0.001661|PDOP=2|3.000|Muro secco|
2|138|9285.562,30498.885,-20118.159|0.004930,-0.001704,0.002552,0.001293,-0.000731,0.002438|PDOP=2|3.000|19/0410/A149|
2|139|9130.540,30886.127,-20114.969|0.003275,0.000143,0.001485,0.000776,0.000121,0.003264|PDOP=2|3.000|30/0410/A149|
2|140|9317.523,30873.703,-20300.418|0.001173,0.000096,0.000428,0.000324,0.000169,0.001246|PDOP=2|3.000|24/0410/A149|
2|141|9380.436,31035.985,-20418.953|0.001145,0.000087,0.000393,0.000287,0.000154,0.001014|PDOP=2|3.000|26/0410/A149|

Posso correggere il problema in pregeo o in geocat?
Grazie

sergio-ivaldi · 4 Gennaio 2022, 11:33am

Buongiorno Maria,
guardando il libretto si nota che il punto 118 risulta sprovvisto delle matrici richieste da pregeo quiando base superiore a 5000 mt.
Probabilmente è un punto aggiunto dopo.
Ti consiglio di spostare la VRS su un punto del rilievo vicino tipo il 101 e cancellare tutte le matrici in modo da risolvere il problema.
Saluti

maria-palmisano · 4 Gennaio 2022, 11:37am

Sergio, ti ringrazio intanto per la risposta. In realtà è un punto rilevato con il gps ecco perchè non riesco a capire come sia possibile questo errore.

sergio-ivaldi · 4 Gennaio 2022, 11:54am

Ciao,
se ti può essere utile prova a copiarti questi dati nel blocco note di Windows e salvarli come ad esempio 12102.dat,
sono il tuo rilievo con la base spostata nel triangolo fiduciale.
Un saluto

0|01012020|1|A149|0410|585|PIPPO PLUTO|geometra|BARI|
9|100|10|20|0|PREGEO 10.00-G,APAG 2.12|FR|geomax|
1|100|4620311.41,1432096.87,4143595.96|0.000|nn [WGS84-ETRF2000]|
6|L2|11122021-09:00|11122021-12:00|RTK|PDOP=3|
2|101|241.345,87.416,152.326|0,0,0,0,0,0|PDOP=2|3.000|Nessuna|
2|102|241.340,87.415,152.329|0,0,0,0,0,0|PDOP=2|3.000|FABBRICATO|
2|103|236.825,92.186,156.777|0,0,0,0,0,0|PDOP=2|3.000|FABBRICATO|
2|104|235.366,88.023,159.877|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|105|235.434,87.963,159.830|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|106|234.388,83.180,163.267|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|107|238.802,78.834,158.898|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|108|240.306,83.778,155.139|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|109|241.384,87.449,152.330|0,0,0,0,0,0|PDOP=1|3.000|FABBRICATO|
2|110|245.850,81.398,149.774|0,0,0,0,0,0|PDOP=1|3.000|Muro secco|
2|111|246.345,81.048,149.703|0,0,0,0,0,0|PDOP=1|3.000|Muro secco|
2|112|243.862,70.471,159.098|0,0,0,0,0,0|PDOP=1|3.000|Muro secco|
2|113|245.755,68.649,157.693|0,0,0,0,0,0|PDOP=1|3.000|CORDOLO IN PIETRA|
2|114|245.765,68.662,157.715|0,0,0,0,0,0|PDOP=1|3.000|CORDOLO IN PIETRA|
2|115|243.701,63.034,162.210|0,0,0,0,0,0|PDOP=1|3.000|CORDOLO IN PIETRA|
2|116|237.056,69.487,167.231|0,0,0,0,0,0|PDOP=1|3.000|CORDOLO IN PIETRA|
2|117|238.088,72.132,165.226|0,0,0,0,0,0|PDOP=1|3.000|CORDOLO IN PIETRA|
2|118|237.264,72.567,165.478|0,0,0,0,0,0|PDOP=2|3.000|CORDOLO IN PIETRA|
2|119|238.246,75.588,163.027|0,0,0,0,0,0|PDOP=2|3.000|CORDOLO IN PIETRA|
2|120|242.611,71.689,160.032|0,0,0,0,0,0|PDOP=2|3.000|CORDOLO IN PIETRA|
2|121|242.221,72.648,157.602|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|122|233.269,80.200,164.689|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|123|233.359,79.913,164.815|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|124|230.647,70.671,171.303|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|125|230.153,72.175,170.155|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|126|233.707,85.031,161.163|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|127|236.662,96.180,152.961|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|128|238.607,104.900,146.133|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|129|238.825,104.580,145.732|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|130|237.307,96.535,152.223|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|131|238.848,104.565,145.678|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|132|254.671,91.882,133.457|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|133|254.990,92.097,133.096|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|134|238.487,104.970,145.312|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|135|246.328,55.299,162.480|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|136|246.656,55.266,162.162|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|137|251.570,77.379,144.356|0,0,0,0,0,0|PDOP=2|3.000|Muro secco|
2|138|278.995,-179.117,216.808|0,0,0,0,0,0|PDOP=2|3.000|19/0410/A149|
2|139|123.972,208.125,219.998|0,0,0,0,0,0|PDOP=2|3.000|30/0410/A149|
2|140|310.956,195.701,34.549|0,0,0,0,0,0|PDOP=2|3.000|24/0410/A149|
2|141|373.869,357.983,-83.986|0,0,0,0,0,0|PDOP=2|3.000|26/0410/A149|

gianni-rossi · 4 Gennaio 2022, 11:55am

Ciao Maria,
se è un punto rilevato effettivamente dal GPS, allora vuol dire che per qualche motivo la strumentazione non ha registrato i dati della matrice di varianza-covarianza. In ogni caso ti conviene rimediare come suggerito da Sergio perché ho visto che hai la base GPS a ben 38 km e questo comporta i problemi che puoi leggere in questo mio articolo:

GPS - i rischi nell’utilizzo di basi permanenti.pdf (919,9 KB)

Con Geocat puoi risolvere velocemente seguendo quest’altro PDF:

Trasferimento della base in locale (VRS).pdf (305,3 KB)

Resto a disposizione per eventuali altre informazioni.

maria-palmisano · 4 Gennaio 2022, 11:57am

Ti ringrazio davvero tanto per la disponibilità. Provo con il tuo libretto.
Grazie ancora

maria-palmisano · 4 Gennaio 2022, 11:59am

Grazie mille Gianni,
quindi, da quanto ho capito, forse mi conviene sempre spostare a prescindere la base all’interno.
Si, confermo che il punto è stato rilevato cmq con il GPS.
Leggo entrambi gli articoli che mi hai allegato.
Grazie

gianni-rossi · 4 Gennaio 2022, 12:29pm

Ciao Maria.

Sì, in un rilievo GPS appoggiato alle reti NRTK conviene sempre portarsi la base in locale e, anzi, conviene farlo già in campagna mediante le apposite funzionalità messe a disposizione dalla rete/strumentazione. Così facendo eviti sul nascere problemi come quello che hai esposto.

maria-palmisano · 4 Gennaio 2022, 12:49pm

Grazie Gianni, ne approfitto per chiederti dove posso trovare la guida per Geocat da cui hai estratto l’allegato sul trasferimento della base in locale.

gianni-rossi · 6 Gennaio 2022, 6:37pm

Ciao Maria,
la guida in linea di Geocat la puoi aprire cliccando sull’icona del ? (punto interrogativo) di Geocat, oppure direttamente dal file PDF che trovi nella cartella:

C:\Program Files (x86)\Tecnobit\Geocat 600\Geocat.pdf

Questa guida non è aggiornata ma il 90% delle funzionalità le trovi. L’estratto che ti ho postato qui invece è tratto dalla nuova guida aggiornata che sto ultimando unitamente a questo mio nuovo libro:

Conto di pubblicare sia la nuova guida che il libro in primavera.