Water wheel rotational speed monitoring system based on photoelectric sensor

Abstract

The invention discloses a water wheel rotational speed monitoring system based on a photoelectric sensor. The water wheel rotational speed monitoring system comprises a data acquisition terminal, a cloud server terminal and a monitoring terminal, wherein the data acquisition terminal is connected with the cloud server terminal; the cloud server terminal is connected with the monitoring terminal; the data acquisition terminal comprises a light source emitter, a photoelectric sensor, a shaping and amplifying circuit, a data processing module, a DSP module, a radiofrequency transmitter and a power supply module; and a rotational speed sensor comprises the light source emitter and the photoelectric sensor. The water wheel rotational speed monitoring system disclosed by the invention is simple in structure, high in measurement accuracy, high in anti-interference capacity, and capable of accurately measuring the rotational speed of a water wheel generator; a hardware circuit is simplified, the product cost is reduced, the design cycle is shortened, and the reliability and flexibility of the system are improved; and the data acquisition terminal of the water wheel rotational speed monitoring system disclosed by the invention is supplied with power by virtue of solar energy, and is capable of analysing the voltage state of a battery in real time, thus achieving intelligent charging for the battery, and effectively prolonging the service life of the battery.

Description

technical field [0001] The invention relates to a water wheel speed monitoring system, in particular to a water wheel speed monitoring system based on a photoelectric sensor, which belongs to the field of intelligent monitoring. Background technique [0002] Rotational speed data is one of the important signs of the operation status of the hydro-generator set. Accurately measuring the speed of the unit and performing various necessary control operations in time according to the change of the speed to ensure the normal and safe operation of the hydroelectric generator set are the functions that the monitoring device should complete. [0003] At present, most of the domestic hydropower stations use old-fashioned speed signals such as permanent magnet generator plus voltage relay type and mechanical type, which have disadvantages such as complex structure, low measurement accuracy, and poor working reliability. [0004] In the control system of the hydro-generator unit, the ov...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the domestic hydropower stations use old-fashioned speed signals such as permanent magnet generator plus voltage relay type and mechanical type, which have disadvantages such as complex structure, low measurement accuracy, and poor working reliability.

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