Hydrological telemeter

Abstract

The invention relates to a hydrological telemeter and solves the technical problems that after the power down of external alternating current, a conventional hydrology and water resource terminal cannot work normally, the volume is large, the energy consumption is high, the measuring accuracy is low, the running stability is poor, and the reliability is low. The hydrological telemeter comprises a master control circuit board, as well as a touch display screen, a data memory, a humiture sensor, a switching power supply module, a water-stage gage, a water manometer, a flowmeter, a rain gage and a GPRS / GSM module which are connected with the master control circuit board, wherein the master control circuit board is provided with a central processing unit, and is connected with a solar photovoltaic plate, a PWM charging circuit and a storage battery which are connected in sequence, and the PWM charging circuit is connected with the master control circuit board; the master control circuit board is further connected with a DC / DC switching circuit connected with the central processing unit, the switching power supply module is connected with the DC / DC switching circuit, the switching power supply module outputs DC12V voltage, the DC12V voltage is taken as the input of the DC / DC switching circuit, and the DC / DC switching circuit outputs DC3.3V voltage. The hydrological telemeter provided by the invention can be widely used for distant range hydrology and water resource information acquisition and transmission.

Description

technical field [0001] The invention relates to a data acquisition device, in particular to a hydrological telemetry instrument. Background technique [0002] At present, in the fields of mountain torrent disaster prevention, water conservancy and hydropower, and shipping engineering, hydrological and water resources telemetry terminals are mainly used in the data collection of hydrological and water resources to realize the collection, storage and analysis of hydrological information. [0003] However, the existing hydrological and water resource telemetry terminals have the defects that they cannot work normally after the external AC power failure, and are large in size, high in energy consumption, low in measurement accuracy, poor in operation stability, and low in reliability. Contents of the invention [0004] In order to solve the technical problems that the existing hydrology and water resources terminal machine cannot work normally after the external AC power failu...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems that the existing hydrology and water resources terminal machine cannot work normally after the external AC power failure, and has large volume, high energy consumption, low measurement accuracy, poor operation stability and low reliability, the present invention provides an external AC power terminal It can work normally when abnormal, small in size, low in energy consumption, energy-saving and environmentally friendly, high in measurement accuracy, and stable and reliable in operation.

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