問98
頻出度★☆☆
IoT 機器であるスマートメーターに関する記述として, 適切なものはどれか。
令和5年度 ITパスポート試験 問98
This question's explanation and your answers so far.
解説
問 98
Incorrectア
Measuring the change in speed (acceleration) while built into car navigation systems or game controllers is the description of an “accelerometer”; it is not a function of a smart meter.
- イ
正解 A smart meter is a metering device with a communication function that is installed in homes, buildings, and the like; it automatically measures the consumption of electricity, gas, water, and so on, and transmits the measured data to the supplier via communication such as mobile phone lines. It is a representative example of an IoT device. Visits by a meter reader become unnecessary, and remote data collection, visualization of consumption, and linkage with HEMS (Home Energy Management System) become possible. Choice “イ”, which matches this description, is correct.
Incorrectウ
Remotely erasing, via a network, the data stored on a smartphone or mobile PC is the description of “remote wipe”; it is a countermeasure against information leakage in the event of loss or theft and has nothing to do with a smart meter.
Incorrectエ
Counting steps and using functions such as GPS to detect the walking route, walking speed, and the ups and downs of the road in order to calculate energy consumption is the description of an “activity tracker (pedometer)”; it is a different thing from a smart meter, which measures electricity and gas consumption.
ここがポイント
- A smart meter is an IoT metering device that automatically measures consumption and transmits it to the supplier over a communication line, enabling remote meter reading, visualization of consumption, and HEMS linkage.
- Distinguish the functional differences from similar IoT-related terms such as the accelerometer, remote wipe, and activity tracker.
用語