CHARGING DEVICE, CHARGING SYSTEM AND CHARGING METHOD
There is provided a charging device including: a charging unit that charges plural secondary batteries that supply electric power to a portable radiation imaging device, each of plural secondary batteries being able to be installed in or removed from the portable radiation imaging device; a detecting unit that detects an extent of deterioration of each of the secondary batteries; a selecting unit that selects a secondary battery to be installed in the portable radiation imaging device such that, the smaller a planned number of images to be captured by the portable radiation imaging device, the higher the frequency of selection of a secondary battery, whose extent of deterioration is high, becomes; and an indicating unit that indicates the secondary battery selected by the selecting unit.
1 . A charging device comprising:
a charging unit that charges a plurality of secondary batteries that supply electric power to a portable radiation imaging device, each of the plurality of secondary batteries being able to be installed in or removed from the portable radiation imaging device;
a detecting unit that detects an extent of deterioration of each of the plurality of secondary batteries;
a selecting unit that selects a secondary battery to be installed in the portable radiation imaging device such that, the smaller a planned number of images to be captured by the portable radiation imaging device, the higher the frequency of selection of a secondary battery, whose extent of deterioration is high, becomes; and
an indicating unit that indicates the secondary battery selected by the selecting unit.
2 . The charging device of claim 1 , further comprising one of an inputting unit at which at least number of images data, that expresses the planned number of images to be captured, is inputted, and an acquiring unit that acquires the number of images data.
3 . The charging device of claim 1 , wherein the selecting unit selects a secondary battery whose extent of deterioration is highest among those secondary batteries each having the electric power is not less than an electric power sufficient to capture the planned number of images.
4 . The charging device of claim 1 , wherein the selecting unit sets a threshold value of an extent of deterioration such that, the smaller the planned number of images to be captured, the higher the threshold value of the extent of deterioration, and the selecting unit selects a secondary battery whose extent of deterioration is not less than the threshold value, and whose electric power is not less than an electric power sufficient to capture the planned number of images and is closest to the electric power sufficient to capture the planned number of images.
5 . The charging device of claim 1 , wherein the selecting unit divides the plurality of secondary batteries into deterioration levels of a predetermined plurality of stages in accordance with the extent of deterioration, and the selecting unit selects the secondary battery such that, the smaller the planned number of images to be captured, the higher the deterioration level of the secondary battery that is selected.
6 . The charging device of claim 5 , wherein the selecting unit selects a secondary battery whose electric power charged by the charging unit is closest to an electric power sufficient to capture the planned number of images, or a secondary battery that is most charged.
7 . The charging device of claim 5 , wherein the selecting unit carries out division into the deterioration levels of the predetermined plurality of stages by comparing the extent of deterioration with a plurality of threshold values that are determined in advance in accordance with the deterioration levels of the predetermined plurality of stages.
8 . The charging device of claim 7 , further comprising a setting unit that sets the plurality of threshold values.
9 . The charging device of claim 3 , wherein, when there does not exist a secondary battery whose electric power charged by the charging unit is not less than the electric power sufficient to capture the planned number of images, the selecting unit selects, as the secondary battery to be installed in the portable radiation imaging device, a secondary battery that is closest to the electric power sufficient to capture the planned number of images.
10 . The charging device of claim 1 , wherein the planned number of images to be captured is a total of a number of images to be captured for which imaging is requested in one imaging order, or of a number of images for which imaging is requested in a plurality of imaging orders for which imaging is to be carried out in a state in which the secondary battery is installed one time in the portable radiation imaging device.
11 . The charging device of claim 1 , wherein the charging unit carries out high-speed charging by increasing the electric power, that is supplied in charging of the secondary battery, and carries out high-speed charging with respect to a secondary battery whose extent of deterioration is not less than a predetermined extent of deterioration.
12 . A charging system comprising:
a charging device that charges a plurality of secondary batteries that supply electric power to a portable radiation imaging device, each of the second batteries being able to be installed in or removed from the portable radiation imaging device;
a detecting unit that detects an extent of deterioration of each of the plurality of secondary batteries;
a selecting unit that selects a secondary battery to be installed in the portable radiation imaging device such that, the smaller a planned number of images to be captured by the portable radiation imaging device, the higher the frequency of selection of a secondary battery, whose extent of deterioration is high, becomes; and
an indicating unit that indicates the secondary battery selected by the selecting unit.
13 . A method of selecting a secondary battery in a charging device that charges a plurality of secondary batteries that supply electric power to a portable radiation imaging device, each of the second batteries being able to be installed in or removed from the portable radiation imaging device, the method comprising:
detecting an extent of deterioration of each of the plurality of secondary batteries;
selecting a secondary battery to be installed in the portable radiation imaging device such that, the smaller a planned number of images to be captured by the portable radiation imaging device, the higher the frequency of selection of a secondary battery, whose extent of deterioration is high, becomes; and
indicating the secondary battery that was selected.
14 . The method of claim 13 , wherein selecting a secondary battery includes selecting a secondary battery whose extent of deterioration is highest among those second batteries whose electric power is not less than an electric power sufficient to capture the planned number of images.
15 . The method of claim 13 , wherein selecting a secondary battery includes setting a threshold value of an extent of deterioration such that, the smaller the planned number of images to be captured, the higher the threshold value of the extent of deterioration, and includes selecting a secondary battery whose extent of deterioration is not less than the threshold value, and whose electric power is not less than an electric power sufficient to capture the planned number of images and is closest to the electric power sufficient to capture the planned number of images.
16 . The method of claim 13 , wherein selecting a secondary battery includes dividing the plurality of secondary batteries into deterioration levels of a predetermined plurality of stages in accordance with the extent of deterioration, and includes selecting a secondary battery such that, the smaller the planned number of images to be captured by the portable radiation imaging device, the higher the deterioration level of the secondary battery that is selected.
17 . The charging device of claim 8 , wherein the setting unit lowers the plurality of threshold values when a number of secondary batteries of a highest deterioration level is not less than a predetermined proportion.