Detection method, detection apparatus and detection system
AssigneePrime Planet Energy & Solutions, Inc.
InventorsMasakazu Naito, Eiji Kawasaki, Kosuke Yamamoto
Life of this patent
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Abstract
There is provided a detection method for detecting a failure of a thermistor, the detection method comprising: applying a load to the thermistor over time; measuring a physical property value of the thermistor at least at a first time and a second time during a time period in which the load is being applied to the thermistor; and detecting the failure of the thermistor based on first data indicating the physical property value of the thermistor measured at the first time and second data indicating the physical property value of the thermistor measured at the second time.
Claims20
A detection method for detecting a failure of a thermistor, the detection method comprising:
- applying a load to the thermistor over time;
- measuring a physical property value of the thermistor at least at a first time and a second time during a time period in which the load is being applied to the thermistor,
- first data indicating the physical property value of the thermistor measured at the first time, and
- second data indicating the physical property value of the thermistor measured at the second time;
- and
- detecting the failure of the thermistor by:
- determining an amount of change in the physical property per unit time based on a difference between the first data and the second data, and a difference between the first time and the second time;
- determining a moving average value of the amount of change in the physical property per unit time;
- and
- comparing the moving average value of the amount of change in the physical property per unit time with a reference value.
A detection apparatus that detects a failure of a thermistor, the detection apparatus comprising:
- a measurement unit that measures a physical property value of the thermistor at least at a first time and a second time during a time period in which a load is being applied to the thermistor,
- first data indicating the physical property value of the thermistor measured at the first time, and
- second data indicating the physical property value of the thermistor measured at the second time;
- and
- a detection unit that detects the failure of the thermistor by:
- determining an amount of change in the physical property per unit time based on a difference between the first data and the second data, and a difference between the first time and the second time;
- determining a moving average value of the amount of change in the physical property per unit time;
- and
- comparing the moving average value of the amount of change in the physical property per unit time with a reference value.
A detection system that detects a failure of a thermistor, the detection system comprising:
- a load unit that applies a load to the thermistor over time;
- a measurement unit that measures a physical property value of the thermistor at least at a first time and a second time during a time period in which the load is being applied to the thermistor,
- first data indicating the physical property value of the thermistor measured at the first time, and
- second data indicating the physical property value of the thermistor measured at the second time;
- and
- a detection unit that detects the failure of the thermistor by:
- determining an amount of change in the physical property per unit time based on a difference between the first data and the second data, and a difference between the first time and the second time;
- determining a moving average value of the amount of change in the physical property per unit time;
- and
- comparing the moving average value of the amount of change in the physical property per unit time with a reference value.
Dependencies are inferred from the claim text.