Analysis device, analysis method, and storage medium which stores program
The purpose of the present invention is to facilitate evaluating the precision of a pipe network model without using flow information. An analysis device according to an embodiment of the present invention comprises a transfer characteristic derivation unit which derives a transfer characteristic which represents a relation between a voltage in a plurality of nodes which are included in an electrical circuit which is a model of a pipe network through which a fluid flows and a voltage in an interior node which is a different node of the electrical circuit from the plurality of nodes, and a computation unit which, on the basis of the transfer characteristic and the pressure of the fluid at positions within the pipe network which correspond to the plurality of nodes, computes the pressure of the fluid at a position within the pipe network which corresponds to the interior node.
1. An analysis device comprising:
a memory; and
a processing device coupled to the memory and configured to:
derive a transfer characteristics that represents a relation between a voltage at a plurality of nodes included in an electrical circuit and a voltage at an interior node that is a node in the electrical circuit different from the plurality of nodes, the electrical circuit being a modeling of a pipe network in which fluid flows;
compute a pressure of the fluid at a position in the pipe network corresponding to the interior node, based on the transfer characteristics and pressures of the fluid at positions in the pipe network corresponding to the plurality of nodes
derive the transfer characteristics according to a frequency of a voltage; and
compute, based on the transfer characteristics and a first feature which is a feature of a change of a pressure of the fluid at positions in the pipe network corresponding to the plurality of nodes, a second feature which is a feature of a change of a pressure of the fluid at a position in the pipe network corresponding to the interior node.
2. The analysis device according to claim 1 , wherein the processing device is further configured to:
acquire a third feature which is a feature of a change of a pressure at the position in the pipe network that corresponds to the interior node; and
calculate a difference between the second feature and the third feature based on the second feature and the third feature.
3. The analysis device according to claim 2 , wherein the processing device is further configured to:
determine whether the difference satisfies predetermined criterion; and
perform modification of a predetermined parameter in information of the pipe network based on the difference when the processing device determines that the difference does not satisfy the predetermined criterion,
wherein the processing device is configured to repeat the modification until the processing device determines that the difference calculated based on information of the pipe network to which the modification is applied satisfies the predetermined criterion.
4. An analysis method comprising:
deriving a transfer characteristics that represents a relation between a voltage at a plurality of nodes included in an electrical circuit and a voltage at an interior node that is a node in the electrical circuit different from the plurality of nodes, the electrical circuit being a modeling of a pipe network in which fluid flows;
computing a pressure of the fluid at a position in the pipe network corresponding to the interior node, based on the transfer characteristics and pressures of the fluid at positions in the pipe network corresponding to the plurality of nodes;
deriving the transfer characteristics according to a frequency of a voltage; and
computing, based on the transfer characteristics and a first feature which is a feature of a change of a pressure of the fluid at positions in the pipe network corresponding to the plurality of nodes, a second feature which is a feature of a change of a pressure of the fluid at a position in the pipe network corresponding to the interior node.
5. The analysis method according to claim 4 , further comprising:
acquiring a third feature which is a feature of a change of a pressure at the position in the pipe network that corresponds to the interior node; and
calculating a difference between the second feature and the third feature based on the second feature and the third feature.
6. The analysis method according to claim 5 , further comprising:
determining whether the difference satisfies predetermined criterion;
performing modification of a predetermined parameter in information of the pipe network based on the difference when the difference is determined not to satisfy the predetermined criterion; and
repeating the modification until the difference calculated based on information of the pipe network to which the modification is applied is determined to satisfy the predetermined criterion.
7. A non-transitory computer-readable storage medium storing a program that causes a computer to perform:
transfer characteristics derivation processing for deriving a transfer characteristics that represents a relation between a voltage at a plurality of nodes included in an electrical circuit and a voltage at an interior node that is a node in the electrical circuit different from the plurality of nodes, the electrical circuit being a modeling of a pipe network in which fluid flows; and
computation processing for computing a pressure of the fluid at a position in the pipe network corresponding to the interior node, based on the transfer characteristics and pressures of the fluid at positions in the pipe network corresponding to the plurality of nodes, wherein
the transfer characteristics derivation processing includes deriving the transfer characteristics according to a frequency of a voltage, and
the computation processing includes computing, based on the transfer characteristics and a first feature which is a feature of a change of a pressure of the fluid at positions in the pipe network corresponding to the plurality of nodes, a second feature which is a feature of a change of a pressure of the fluid at a position in the pipe network corresponding to the interior node.
8. The storage medium according to claim 7 , wherein the program further causes the computer to perform:
input/output processing for acquiring a third feature which is a feature of a change of a pressure at the position in the pipe network that corresponds to the interior node; and
wave comparison processing for calculating a difference between the second feature and the third feature based on the second feature and the third feature.
9. The storage medium according to claim 8 , wherein
the program further causes the computer to perform:
determination processing for determining whether the difference satisfies predetermined criterion; and
modification processing for performing modification of a predetermined parameter in information of the pipe network based on the difference when the determination processing determines that the difference does not satisfy the predetermined criterion, and
the modification processing includes repeating the modification until the determination processing determines that the difference calculated based on information of the pipe network to which the modification is applied satisfies the predetermined criterion.