Intelligent flow measuring system and method
A flow measurement and intelligent technology, applied in general control systems, control/regulation systems, liquid level indicators through pressure measurement, etc., can solve problems such as stagnation, difficulty in adapting to the rapid and accurate inspection requirements of hydrological measurement, and achieve The effect of improved intelligence and convenient operation
Inactive Publication Date: 2016-08-24
NORTH CHINA INST OF AEROSPACE ENG
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Problems solved by technology
At present, the instruments used for open channel flow measurement at home and abroad are still dominated by ordinary rotors. This method of flow measurement generally stays at a low level of on-site manual recording, manual calculation, checking, and rechecking, and it is difficult to adapt to the rapid and accurate hydrological measurement. Survey requirements
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[0020] see figure 1 As shown, the present invention provides an intelligent flow measurement system, which includes a controller, a rotameter and a pressure transmitter connected to the controller, and a power supply, a keyboard, a display screen, a USB (Universal Serial Bus) chips and ferroelectric memory chips.
[0021] In a preferred embodiment of the present invention, the controller is preferably a C8051 single-chip microcomputer, which is a fully integrated mixed-signal system-on-a-chip (System-on-a-Chip, SOC) with an instruction core fully compatible with MCS-51, The C8051 single-chip microcomputer adopts pipeline processing (pipe line) technology, no longer distinguishes clock cycle and mechanical cycle, can preprocess the next instruction during the execution of instructions, and improves the efficiency of instruction execution, and C8051 single-chip microcomputer has watchdog, analog-to-digital conversion (Analog-to-digital converter, ADC), digital-to-analog convert...
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The invention provides an intelligent flow measuring system and method. The intelligent flow measuring system comprises a controller, a rotor flow speed meter, a pressure transmitter, a display screen, a USB chip and a ferroelectric memory chip, wherein the rotor flow speed meter and the pressure transmitter are connected with the controller, and the display screen, the USB chip and the ferroelectric memory chip are connected to the controller. The ferroelectric memory chip comprises a clock module and a storage module, the rotor flow speed meter sends pulse signals to the controller one time once a rotor rotates five times, and the controller obtains flow speed data from the rotor flow speed meter and water level data from the pressure transmitter respectively and works out flow. Compared with the prior art, according to the intelligent flow measuring system and method, the intelligent degree is remarkably increased, and operation is convenient; by means of communication between the pressure transmitter, the rotor flow speed meter and the like with the controller, the flow of an open channel can be accurately tested; meanwhile, a test result can be displayed through the display screen, and higher user friendliness is achieved.
Description
technical field [0001] The invention relates to fluid measurement technology, in particular to an intelligent flow measurement system and a measurement method thereof. Background technique [0002] A waterway that flows in a partially filled state is called an open channel, and an instrument that measures the flow of water in an open channel is called an open channel flowmeter. In addition to the circle, the open channel circulation section also has a variety of shapes such as U-shaped, trapezoidal, and rectangular. The main open channels in daily life include: urban water supply diversion channels, thermal power plant cooling water diversion and drainage channels, sewage treatment inflow and discharge channels, Wastewater discharge from industrial and mining enterprises and channels for water conservancy projects and agricultural irrigation. These open channels are the main application places for open channel flowmeters. At present, the instruments used for open channel fl...
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IPC IPC(8): G01F1/22G01F23/14G05B19/042
CPCG01F1/22G01F23/14G05B19/0423
Inventor 薛建峰曹新宇梁万雷赵鹏
Owner NORTH CHINA INST OF AEROSPACE ENG