System for detecting interactions with a surface
System for detecting interactions with a surface, said surface being substantially flat, said interactions involving contact with or vicinity to the surface by one or more objects, said system comprising: - a number of optical sensors (C1,.....C5) aligned in front of one side of said surface (S), capable of generating view cones (FW) that are partially overlapped, independent and provided with computational capacity, generating a continuous detection zone (Z) in front of the surface, which is adapted to effect said interaction detection; - means in each independent sensor, adapted for analysing the signals coming from said optical sensors and configured for executing successive detection, recognition and event generation operations, so that said sensors can be grouped into independent modules adapted to be applied to the surface to be made interactive; - said detection operations comprising: pre-filtering, convolution and "feature- based" algorithms adapted to determine the position of said one or more objects within said continuous detection zone (Z) and to determine the type thereof by discerning among hands, fingers and objects entering a field of view of the sensors; - said recognition operations comprising: triangulation with windowing for computing the positions of the interactions among said positions, hierarchical clustering for determining the interaction type, tracking of said positions to define the variations of said positions within a period of time; - said event generation operations comprising: transformation of said positions and time variations into displayed events, thereby detecting said interactions.
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- IPC: G06F3/042; G06F3/14; G06F3/16
- CPC: G06F3/0428 (EP); G06F3/1423 (EP); G06F3/165 (EP); H04N9/3147 (EP); H04N9/3194 (EP)
Method for optimizing tower-type solar power plants
Method for optimizing the arrangement of heliostats on the territory of a tower-type solar power plant, the territory including a discrete grid of points (j=x, y, z) whereon a coverage (Cj) is defined as the ratio between the mirroring surface installed at said points and the corresponding territory area, the yearly solar radiation concerning a discrete grid of solar coordinates, zenith and azimuth (i=zen, azi), above a local horizon line, contributing to the usable radiation for the plant, comprising the following steps: - for each one of said points and solar coordinates, calculating an optimal density Copt ij, of the heliostats as the maximum specific mirroring area that can be covered at the considered grid point without the heliostats shading each other, thereby blocking the incident or reflected radiation; - for each one of said points, calculating the yearly collected energy as the sum of the energetic contributions of each solar coordinate, each one multiplied by the least value of the coverage and the optimal density for the corresponding solar coordinate; - for each one of said points, calculating an increase in the collected radiation resulting from increased coverage (Cj,) as the ratio between said collected energy and said coverage at that point; - calculating an optimal coverage Cmax.j with reference to the position of said tower, progressively increasing the coverage at said grid points until a target energy value (Rmax) is obtained; - determining a distribution of the positions of the heliostats that complies with said optimal coverage relative to said tower, by means of the following steps: - dividing said territory into a number of wedges (Nw) having the same opening angle, which is equal to the ratio between the round angle and the number of wedges; - within each wedge, arranging said heliostats along half-lines parallel to the wedge axis, equidistant by a fixed mutual distance (D), the number of half-lines within each wedge increasing with the distance from the tower and being determined by the number of times that the distance between the half-lines can be contained in the side of the regular polygon having a number of sides equal to said number of wedges (Nw), centred at the tower; - positioning the first heliostat at the beginning of the line and positioning the other ones at a distance equal to the ratio between the heliostat area and the local optimal coverage multiplied by said distance (D) between the lines.
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Application filed: 28/05/2020 by Crs4 S.R.L..
Publication: 03/12/2020 of WO2020240457
Inventor: Lorenzo Pisani
- IPC: F24S20/00; F24S50/20
- CPC: F24S20/00 (EP); F24S2020/10 (EP); F24S2020/16 (EP); Y02E10/40 (EP)
Process for the production of useful materials for sustaining manned space missions on Mars through in-situ resources utilization
A process for the production of useful materials to sustain manned space missions on Mars, as well as the kit of materials and apparatus for implementing the same, is described. Said process uses as raw feedstock only natural resources available in-situ, namely Mars atmosphere and regolith. The kit allows to implement the process of the invention by providing all materials and apparatus that will be used on the Martian soil.
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Application filed: 24/07/2012 by Crs4 S.R.L., Università degli Studi di Cagliari, ASI Agenzia Spaziale Italiana
Publication: 19/06/2014 of US20140165461A1
Inventors: Giacomo Cao, Alessandro Concas, Gianluca Corrias, Roberta Licheri, Roberto Orrù, Massimo Pisu
- A01G15/00 - Devices or methods for influencing weather conditions
Method for determining values of molecular properties
A value of a property of a molecule (M1 ) of interest is determined by performing, through an electronic processor, the following operations: a molecular data base (DB) is processed by determining a plurality of atomic types (T1, T2, T3, T4, T5) associated with the atoms (10DB, 20DB, 30DB, 40DB) of the surveyed molecules (MDB1, MDB2) in the data base (DB); for a plurality of reference molecules (M2, M3, M4), the values of which are known in connection to said property, the atomic types of the constituent atoms (210, 420) are determined; the atomic types of the atoms (10, 20, 30) of the molecule (M1 ) of interest are determined; by regressing to known values of the property of the reference molecules (M2, M3, M4), corresponding contribution values of the atomic types are obtained; the value of the property of the molecule (M1 ) of interest is calculated as a combination of the contribution values, obtained through a regression, of the atomic types of the molecule (M1 ) of interest.
PDF - Espacenet
- G16C20/30 Prediction of properties of chemical compounds, compositions or mixtures
- G16C20/70 Machine learning, data mining or chemometrics
Apparatus and method for heat extraction through a solar pond
Application filed: 15/01/2002 by Crs4 S.R.L.
Inventors: Nicola Cabibbo, Erminia Leonardi,
Luca Maciocco, Marco Rosa-Clot
Processo per la preparazione di materiali compositi mediante reazioni autopropaganti attivate da polietilentereftalato di riciclo
PDF - Google Patents
Application filed: 31/08/2001 by Crs4 S.R.L.
Publication: 28/02/2003 of ITMI20011838A1
Inventors: Giacomo Cao, Roberta Licheri,
Process for the preparation of TiAl3
PDF - Google Patents
Application filed: 09/08/2002 by Crs4 S.R.L.
Publication: 10/02/2004 of ITFI20020157A1
Inventors: Giacomo Cao, Francesco Delogu,
Other applications filed
Altre richieste presentate
Procedimento e dispositivo per il controllo di un impianto ad energia solare del tipo a concentrazione su più torri con eliostati
Un codice di simulazione numerica molto flessibile (adattabile a campi solari di svariate dimensioni) permette di calcolare in maniera estremamente accurata l'energia solare raccolta da un impianto a più torri (multitower). A questo codice è accoppiato un altro codice che permette di ottimizzare l'inclinazione degli specchi in modo da configurare il campo, in tempo reale e per tutta la giornata, secondo le orientazioni ottimali al variare delle condizioni di insolazione.
Nell'ambito del solare termodinamico a concentrazione i sistemi "multitower" rappresentano una promettente estensione dei comuni sistemi a torre centrale. Gli eliostati (gli specchi motorizzati che riflettono la luce durante il moto apparente del Sole) riflettono la luce solare verso una delle torri del sistema multitower, a seconda della posizione del Sole. La gestione automatica dell'inclinazione degli eliostati contente di ridurre fortemente gli effetti d'ombra permettendo così di aumentare notevolmente la quantità di energia solare raccolta, a parità di infrastuttura utilizzata (eliostati, area occupata, blocco di potenza, acqua di gestione, ecc).
Allo stesso tempo, è possibile ottimizzare lo spazio occupato dagli specchi nei terreni e l’altezza delle torri, creando un minor impatto visivo, e di installare questo genere di impianto anche in terreni collinosi di scarso interesse agricolo.