| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery-powered device, a battery drive method, and a program capable of elongating an operation time of a device by a control taking account of a relationship between a battery residual amount and a supply voltage. <P>SOLUTION: A radio sensor system comprises a sensor node 1 and a base station 2. The sensor node 1 and the base station 2 are wirelessly communicated with each other. The sensor node 1 includes a transmission/reception section 101, a communication control section 102, a node control section 103, a battery measurement section 104, an information storage section 105, a selection section 106, a measurement section 107, and a data generation section 108. The battery measurement section 104 measures the voltage of batteries. The information storage section 105 stores information of a prescribed changeover voltage of the batteries in conjunction with information of a discharge amount and a voltage reduction amount of a single operation for every actuation sequence. The selection section 106 selects an actuation sequence whose discharge amount is minimum when the voltage of the batteries is the changeover voltage or more, and selects an actuation sequence whose voltage reduction amount is minimum when the voltage of the batteries is less than the changeover voltage. <P>COPYRIGHT: (C)2012,JPO&INPIT |
