| 摘要 |
PURPOSE: A flow meter is provided to maximize energy efficiency by independently managing the power of three layers in a battery-powered condition. CONSTITUTION: A flow meter comprises a sensor data processing part(120), a sensor data buffer(130), a main control part(210), a main data buffer(220), a communication part(310), a sensor layer power management part(140), a main control layer power management part(230), a communication layer power management part(320), and a main power management part(240). The sensor data processing part controls a flow sensor(110) and pre-processes sensor data received from the flow sensor. The sensor data buffer stores raw data, the pre-processing result of the sensor data processing part. The main control part controls the sensor data processing part and processes the raw data read from the sensor data buffer. The main data buffer stores processed data, the processing result of the main control part. The communication part reads out and wirelessly transmits the processed data from the main data buffer. The sensor layer power management part manages the power consumption of the sensor data processing part. The main control layer power management part manages the power consumption of the main control part. The communication layer power management part manages the power consumption of the communication part.
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