{
  "$type": "site.standard.document",
  "description": "A capacity measurement system of a secondary battery that estimates an SOC with high estimation accuracy in a short time at low cost is provided. The capacity measurement system of a secondary battery is an estimation system of a state of charge of a power storage device that includes a unit for…",
  "path": "/patents/1288573",
  "publishedAt": "2021-04-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/367",
    "SEMICONDUCTOR ENERGY LABORATORY CO., LTD."
  ],
  "textContent": "A capacity measurement system of a secondary battery that estimates an SOC with high estimation accuracy in a short time at low cost is provided. The capacity measurement system of a secondary battery is an estimation system of a state of charge of a power storage device that includes a unit for acquiring time-series data of a voltage measured value and a current measured value of a first power storage device; a unit for normalizing the time-series data of the voltage measured value; a unit for normalizing the time-series data of the current measured value; a database creation unit for creating a database where an SOC of the first power storage device is linked to superimposed data of time-series data of a time axis corresponding to a vertical axis and time-series data of a time axis corresponding to a horizontal axis; and a neural network unit where a neural network is constructed using the database created in advance as learning data, superimposed data of time-series data of a time axis corresponding to a vertical axis and time-series data of a time axis corresponding to a horizontal axis of a second power storage device is input, and an estimated SOC value of the second power storage device is output.",
  "title": "ESTIMATION METHOD OF STATE OF CHARGE OF POWER STORAGE DEVICE AND ESTIMATION SYSTEM OF STATE OF CHARGE OF POWER STORAGE DEVICE"
}