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Flow rate measuring method based on mobile intelligent terminal

A mobile smart terminal, flow velocity measurement technology, applied in the direction of fluid velocity measurement, velocity/acceleration/impact measurement, measurement device, etc., can solve the problems of low measurement accuracy, manual estimation, etc., to achieve high measurement accuracy, easy to carry and operate simple effect

Active Publication Date: 2015-05-20
BEIJING JIANGYI TECH
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Problems solved by technology

The floating method does not require professional equipment and has a simple principle, but this method requires manual estimation of the position of floating objects, and the measurement accuracy is low

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  • Flow rate measuring method based on mobile intelligent terminal
  • Flow rate measuring method based on mobile intelligent terminal
  • Flow rate measuring method based on mobile intelligent terminal

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Embodiment Construction

[0011] A method for measuring flow velocity based on a mobile intelligent terminal of the present invention will be described in detail below.

[0012] The flow velocity measurement method based on the mobile intelligent terminal of the present invention is as follows: first, the image processing and water flow velocity calculation program and the diameter of the input tracer object are preset in the mobile intelligent terminal; The mobile smart terminal shoots two or more pictures in a fixed position with the same attitude towards the tracer object; the mobile smart terminal automatically calculates the water flow velocity based on the pictures taken, and combines the calculation results with the current time, space coordinates and other information Automatically stored for later use. Among them, the tracer object is a circular or spherical floating object, and the size of the object should ensure that the diameter of its corresponding image is greater than 10 pixels; the mob...

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Abstract

The invention relates to a flow rate measuring method based on a mobile intelligent terminal, and belongs to the technical field of the water conservancy measuring. The method comprises: first, in the mobile terminal, an image processing and flow rate calculation program is preset and the diameter of a tracer object is inputted; second, in measuring, the tracer object is sprayed to a to-be-measured water surface, the mobile intelligent terminal is handheld or fixed, and the mobile intelligent terminal which is arranged in a fixed position and at the same posture is aligned with the tracer object to continuously shoot two or more pictures; and third, the mobile intelligent terminal, according to the pictures, automatically calculates the flow rate of outgoing water, and automatically stores the calculated result together with current time and space coordinate information for later use. The method of the invention has the advantages of easy carrying, convenient operation, low price, high accuracy, and the like, and has great popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of water conservancy measurement, in particular to the measurement of water flow velocity. technical background [0002] Flow velocity is a characteristic variable that characterizes the state of water flow movement, and all activities related to water flow in human society take water flow velocity as an important factor of concern. For example, when wading, it is necessary to judge whether it is safe or not according to the flow velocity. For flood control projects, the anti-scour level of the engineering structure needs to be determined according to the flow velocity. Ships need to choose the appropriate navigation route according to the flow velocity. Although the water flow velocity can be accurately obtained by numerically solving the Navier-Stokes equation, due to the constraints of computer computing power and numerical simulation technology, the main way to obtain the water flow velocity at this stag...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/18
Inventor 陈启刚钟强
Owner BEIJING JIANGYI TECH
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