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Constant-flow bubble type automatic water level measurement device with micro power consumption

A technology of automatic measurement and micro power consumption, applied in the field of sensor measurement, which can solve the problems of difficult power supply, large temperature change range, easy to cause lightning strikes, etc.

Inactive Publication Date: 2009-11-25
STATE GRID ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Water level automatic monitoring stations are basically distributed in the wild, with a wide range of temperature changes and difficult power supply; even with AC power, the stability is poor and it is easy to cause lightning strikes

Method used

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  • Constant-flow bubble type automatic water level measurement device with micro power consumption
  • Constant-flow bubble type automatic water level measurement device with micro power consumption
  • Constant-flow bubble type automatic water level measurement device with micro power consumption

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Embodiment Construction

[0038] Water level automatic measuring device of the present invention comprises outdoor unit 1 and indoor unit 2, as figure 1 shown. The outdoor unit is composed of a data collector 3, a manual counting device 4, a constant-flow bubble water level gauge 5, a barometer 6, communication equipment 7 and a power supply 8; the indoor unit is composed of a centralized controller 9, a communication terminal 10 and a power supply 11. The manual counting device 4 is connected to the data collector 3 through the RS232C serial port. It includes a 4×5 keyboard and a 160×128 LCD display. The MEGA128 single-chip microcomputer is used as the main processor, which is usually in a dormant state and is triggered by the keyboard to start working Mode, for parameter setting and on-site data display, and automatically enters the dormant state after the work is completed. The constant-flow bubble type water level gauge 5 and the barometer 6 are connected to the data collector 3 through the SDI-12...

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Abstract

The invention aims to provide a constant-flow bubble type automatic water level measurement device with micro power consumption, which comprises an outdoor unit and an indoor unit, wherein the outdoor unit comprises a data acquisition device used as core control equipment, a manual register connected through a RS 232C serial port, a constant-flow bubble type water gauge and a barometer connected through an SDI-12 interface, communication equipment connected through a RS 232C serial port, and a 12V DC power supply source of a double-core interface; and the indoor unit comprises a centralized controller with built-in application software, communication equipment connected through a RS 232C serial port, and an AC / DC power supply source, and is connected with the outdoor unit through a communication channel. The device overcomes the defect that the measurement errors of national and international constant-flow bubble type water gauges increase along with the increase of water level amplitude, makes up for errors neglected by other constant-flow bubble type water level measurement devices, effectively improves the water level measuring precision, and can be widely applied to automatically measuring water level under various field environments.

Description

technical field [0001] The invention belongs to the field of sensor measurement, in particular to a device for automatically measuring water level using a constant-flow bubble-type water level gauge. Background technique [0002] The working principle of the constant flow bubble water level gauge: the pressure sensing unit is connected to the air pipe through the air circuit device, and the open end of the air pipe is fixed under the water surface. When the air pressure and water pressure in the air circuit device reach a balance, the pressure sensing unit will Convert to water level height. [0003] Compared with the traditional float-type water level gauge, the constant-flow bubble-type water level gauge has the advantages of simple installation, no need to build a water level well, small civil engineering workload, low investment, short construction period, and large range. It is currently used in hydrological automatic measurement and reporting systems. more and more wi...

Claims

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Application Information

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IPC IPC(8): G01F23/18
Inventor 曹年红熊光亚曹翊军程序周海
Owner STATE GRID ELECTRIC POWER RES INST
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