Electronic device, failure prediction method, and computer product
First Claim
Patent Images
1. An electronic device that includes a part prone to aged deterioration, comprising:
- an environmental load applying unit that applies a first environmental load of a boundary secure operation value between a secure operation environment and non-secure operation environment of the electronic device or a second environmental load of a value that is close to the boundary secure operation value within a range of a secure operation of the electronic device to the part;
an error detecting unit that detects an error in the part with the first or second environmental load applied; and
a failure predicting unit that predicts a failure of the part based on the error detected.
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Abstract
An electronic device that includes a part prone to aged deterioration includes an environmental load applying unit that applies a higher environmental load on the part than an environmental load in a normal operation, an error detecting unit that detects an error in the part with the higher environmental load applied, and a failure predicting unit that predicts a failure of the part based on the error detected.
12 Citations
12 Claims
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1. An electronic device that includes a part prone to aged deterioration, comprising:
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an environmental load applying unit that applies a first environmental load of a boundary secure operation value between a secure operation environment and non-secure operation environment of the electronic device or a second environmental load of a value that is close to the boundary secure operation value within a range of a secure operation of the electronic device to the part; an error detecting unit that detects an error in the part with the first or second environmental load applied; and a failure predicting unit that predicts a failure of the part based on the error detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device that includes a part prone to aged deterioration, comprising:
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an environmental load applying unit that applies an environmental load of a non-secure operation value that exceeds the boundary secure operation value to the part; an error detecting unit that detects an error in the part with the environmental load applied; and a failure predicting unit that predicts a failure of the part based on a value of the environmental load with which an error rate of the error detected becomes a failure threshold value; wherein the failure predicting unit includes a threshold value history storing unit that stores a last value of the environmental load with which an error rate became the failure threshold value when the environmental load of a non-secure operation value was applied as a previous measured threshold value, and the failure predicting unit predicts the failure if a first absolute value of a difference between the previous measured threshold value and a current measured threshold value that is a current value of the environmental load with which an error rate became the failure threshold value when the environmental load of a non-secure operation value was applied is greater than a second absolute value of a difference between the current measured threshold value and a secure operation value.
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11. A method of predicting a failure of a part prone to aged deterioration, comprising:
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applying a first environmental load of a boundary secure operation value between a secure operation environment and non-secure operation environment of the electronic device or a second environmental load of a value that is close to the boundary secure operation value within a range of a secure operation of the electronic device to the part; detecting an error in the part with the first or second environmental load applied; predicting the failure of the part based on the error detected; and notifying the user high possibility of the failure of the part when the failure is predicted.
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12. A computer readable recording medium for storing a computer program that makes a computer execute:
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applying a first environmental load of a boundary secure operation value between a secure operation environment and non-secure operation environment of the electronic device or a second environmental load of a value that is close to the boundary secure operation value within a range of a secure operation of the electronic device to the part; detecting an error in the part with the first or second environmental load applied; predicting the failure of the part based on the error detected; and notifying the user high possibility of the failure of the part when the failure is predicted.
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Specification