Imaging apparatus and method of calculating usable time of imaging apparatus
First Claim
1. An imaging apparatus, comprising:
- circuitry configured to calculate a usable capacity of at least one battery device comprising a secondary battery when an external component is attached to the imaging apparatus, based information an average power obtained and a current integration value measured,wherein the average power is a power while the external component is attached and the imaging apparatus performs at a predetermined mode, andwherein the current integration value is an integration value of current flowing while the external component is attached and the imaging apparatus performs at the predetermined mode.
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Abstract
An imaging apparatus includes a usable time calculation unit which calculates a usable time of a battery device having a secondary battery, wherein the usable time calculation unit measures an average power level while a component is performed at a predetermined operation mode, wherein the power consumption of the component is unknown in advance before the component is initially connected, and when power is supplied for the second and subsequent times while the component is continuously connected, the usable time calculation unit calculates the usable time of the battery device using the average power level and a current integration value which is an integration value of current flowing during charging and discharging of the battery device.
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Citations
17 Claims
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1. An imaging apparatus, comprising:
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circuitry configured to calculate a usable capacity of at least one battery device comprising a secondary battery when an external component is attached to the imaging apparatus, based information an average power obtained and a current integration value measured, wherein the average power is a power while the external component is attached and the imaging apparatus performs at a predetermined mode, and wherein the current integration value is an integration value of current flowing while the external component is attached and the imaging apparatus performs at the predetermined mode. - View Dependent Claims (3, 5, 7, 9, 11, 13, 15, 17)
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2. An imaging apparatus, comprising:
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microcontroller configured to; calculate a power level of at least one battery device comprising a secondary battery, and store the calculated power level in the microcontroller, calculate an average power level while at least one component of the imaging apparatus performs at a predetermined operation mode, by dividing the calculated power level by a number of times the imaging apparatus performs at the predetermined operation mode, and store the calculated average power level in the microcontroller, wherein a power consumption of the at least one component is unknown in advance before power is supplied and after the at least one component is initially connected to the imaging apparatus, and calculate, when power is supplied for the second and subsequent times while the at least one component is continuously connected to the imaging apparatus, the usable time of the at least one battery device by multiplying a current integration value by a useable power level, wherein the current integration value is a first current integration value of current flowing in the at least one battery device divided by a second current integration value when the at least one battery device is fully charged, and wherein the usable power level is the average power level divided by a usable nine when the at least one battery device is fully charged and used at a predetermined power level. - View Dependent Claims (4, 6, 8, 10, 12, 14, 16)
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Specification