Method for determining areas of land distinct from predetermined obstacles and compatible with the installation of photovoltaic panels

1 . A method for determining zones of a territory, called candidate zones, distinct from predetermined obstacles and compatible with the installation of photovoltaic panels, the method being implemented by computer and comprising the following steps:

receiving at least one image of a territory seen from the sky,

detecting predetermined obstacles imaged on the image,

meshing the image into elementary portions,

converting the mesh into a matrix, called main matrix, by assigning a first number to each elementary portion wherein an obstacle is located and a second number to the other elementary portions, the second number being distinct from the first number, identifying the largest sub-matrix, called raw sub-matrix, comprising only second numbers and satisfying at least one compatibility criterion for the installation of photovoltaic panels, and determining a candidate zone compatible with the installation of photovoltaic panels according to the determined raw sub-matrix,

wherein the step of determining a candidate zone comprises:

rotating the raw sub-matrix with a predetermined step, determining if any, of a position of the raw sub-matrix for which the raw sub-matrix is surrounded exclusively by second numbers, and obtaining an intermediate sub-matrix, the intermediate sub-matrix being either the raw sub-matrix or a sub-matrix comprising only the second numbers of the raw sub-matrix at the determined position and second numbers surrounding the raw sub-matrix at the determined position, the candidate zone being determined according to the intermediate sub-matrix.

2 . The method according to claim 1 , wherein the at least one compatibility criterion states that the shape of the raw sub-matrix is predetermined so as to be compatible with the shape of photovoltaic panels.

3 . The method according to claim 1 , wherein the at least one compatibility criterion stipulates that the zone of the territory corresponding to the raw sub-matrix is greater than or equal to a threshold surface area, the threshold surface area being chosen so as to be compatible with the dimensions of photovoltaic panels.

4 . The method according to claim 1 , wherein the step of determining a candidate zone comprises:

meshing of the space surrounding the intermediate sub-matrix into elementary sub-portions, the elementary sub-portions having dimensions strictly smaller than the elementary portions, a first number being assigned to each elementary sub-portion wherein an obstacle is located and a second number being assigned to the other elementary sub-portions, and obtaining a final sub-matrix, the final sub-matrix being either the intermediate sub-matrix or a sub-matrix comprising only the second numbers of the intermediate sub-matrix and, where appropriate, second numbers surrounding the intermediate sub-matrix when the intermediate sub-matrix is surrounded exclusively by second numbers, the candidate zone being the zone of the territory corresponding to the final sub-matrix.

5 . The method according to claim 1 , wherein after the step of determining a candidate zone, the method comprises a step of assigning first numbers to the elementary portions of the main matrix corresponding to the determined candidate zone, and the repetition of the steps of identifying and determining a candidate zone as long as a raw sub-matrix is identified.

6 . The method according to claim 1 , wherein the detecting of obstacles on the image is implemented by at least one detection model, trained beforehand on a database comprising images of obstacles seen from the sky.

7 . The method according to claim 1 , wherein the obstacles comprise at least one of the following elements: buildings, roads, outdoor parking lots, railway tracks, power lines and bodies of water.

8 . The method according to claim 1 , wherein the method comprises a step of determining the irradiance of at least one determined candidate zone.

9 . The method according to claim 2 , wherein the predetermined shape is rectangular.

10 . The method according to claim 3 , wherein the threshold surface area is greater than or equal to one hectare.

11 . A non-transitory readable information medium on which a computer program product according to claim 1 is stored.

12 . A method for determining zones of a territory, called candidate zones, distinct from predetermined obstacles and compatible with the installation of photovoltaic panels, the method being implemented by computer and comprising the following steps:

receiving at least one image of a territory seen from the sky,

detecting predetermined obstacles imaged on the image,

meshing the image into elementary portions,

converting the mesh into a matrix, called main matrix, by assigning a first number to each elementary portion wherein an obstacle is located and a second number to the other elementary portions, the second number being distinct from the first number, identifying the largest sub-matrix, called raw sub-matrix, comprising only second numbers and satisfying at least one compatibility criterion for the installation of photovoltaic panels, and determining a candidate zone compatible with the installation of photovoltaic panels according to the determined raw sub-matrix,

wherein the step of determining a candidate zone comprises:

meshing of the space surrounding an intermediate sub-matrix into elementary sub-portions, the elementary sub-portions having dimensions strictly smaller than the elementary portions, a first number being assigned to each elementary sub-portion wherein an obstacle is located and a second number being assigned to the other elementary sub-portions, and obtaining a final sub-matrix, the final sub-matrix being either the intermediate sub-matrix or a sub-matrix comprising only the second numbers of the intermediate sub-matrix and, where appropriate, second numbers surrounding the intermediate sub-matrix when the intermediate sub-matrix is surrounded exclusively by second numbers, the candidate zone being the zone of the territory corresponding to the final sub-matrix.