Integrated current value measuring device, remaining battery level measuring device, electronic device, integrated current value measuring method, and information collecting system
First Claim
1. An integrated current value measuring device comprising:
- a first element having a resistance value that changes in accordance with an integrated value of current flowing in the first element;
a second element having a resistance value that changes in accordance with an integrated value of current flowing in the second element, and having a degree of the change in the resistance value that is smaller than that of the change in the resistance value of the first element; and
an integrated value calculator configured to calculate an integrated current value based on the resistance value of the first element and the resistance value of the second element, the integrated current value being an integrated amount of current flowing in a current path in which the first element and the second element are inserted in series.
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Accused Products
Abstract
An integrated current value measuring device includes a first element having a resistance value that changes in accordance with an integrated value of current flowing in the first element, a second element having a resistance value that changes in accordance with an integrated value of current flowing in the second element, and having a degree of the change in the resistance value that is smaller than that of the change in the resistance value of the first element, and an integrated value calculator configured to calculate an integrated current value based on the resistance value of the first element and the resistance value of the second element, the integrated current value being an integrated amount of current flowing in a current path in which the first element and the second element are inserted in series.
3 Citations
16 Claims
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1. An integrated current value measuring device comprising:
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a first element having a resistance value that changes in accordance with an integrated value of current flowing in the first element; a second element having a resistance value that changes in accordance with an integrated value of current flowing in the second element, and having a degree of the change in the resistance value that is smaller than that of the change in the resistance value of the first element; and an integrated value calculator configured to calculate an integrated current value based on the resistance value of the first element and the resistance value of the second element, the integrated current value being an integrated amount of current flowing in a current path in which the first element and the second element are inserted in series. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A remaining battery level measuring device comprising:
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a first element having a resistance value that changes in accordance with an integrated value of current flowing in the first element; a second element having a resistance value that changes in accordance with an integrated value of current flowing in the second element, and having a degree of the change in the resistance value that is smaller than that of the change in the resistance value of the first element; an integrated value calculator configured to measure a first voltage generated in the first element and a second voltage generated in the second element, and calculate an integrated current value indicating an integrated amount of current flowing through a current path in which the first element and the second element are inserted in series; and a remaining battery level calculator configured to calculate a remaining battery level of a battery connected to the current path based on the integrated current value calculated by the integrated value calculator, wherein the integrated value calculator calculates the integrated current value corresponding to the measured value of the first voltage and the measured value of the second voltage, based on a relation rule between the first voltage, the second voltage, and the integrated current value.
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15. An information collecting system comprising:
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a plurality of sensor nodes; and an information processing apparatus configured to process information collected from each of the sensor nodes, wherein each of the sensor nodes includes a first element having a resistance value that changes in accordance with an integrated value of current flowing in the first element; a second element having a resistance value that changes in accordance with an integrated value of current flowing in the second element, and having a degree of the change in the resistance value that is smaller than that of the change in the resistance value of the first element; an integrated value calculator configured to calculate an integrated current value based on the resistance value of the first element and the resistance value of the second element, the integrated current value being an integrated amount of current flowing in the current path in which the first element and the second element are inserted in series; a battery connected to the current path; and a processor configured to calculate remaining battery level data based on the integrated current value calculated by the integrated value calculator, wherein the information processing apparatus manages the respective batteries of the sensor nodes by using the remaining battery level data collected from the sensor nodes. - View Dependent Claims (16)
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Specification