Flow velocity measurement system based on sensor network

Abstract

The invention discloses a flow velocity measurement system based on a sensor network. The flow velocity measurement system comprises a data processing and analysis module, a sensor power supply, an interruption signal generator and a flow velocity sensor network formed by multiple flow velocity sensors. Artificial participation is basically not required in the whole process so that full-automatic measurement and display of flow velocity distribution in space range can be realized; the flow velocity sensors can be arranged in a cylindrical surface according to the actual requirements so that the measurement process is enabled to further meet the actual requirements; the flow velocity sensors are fixedly installed, and space coordinate points are uniquely determined so that flow velocity measurement is more accurate; and influence of water depth and altitude is greatly reduced, and flow velocity within large space range can be measured by the sensors fixed on a sensor installing bracket.

Description

technical field [0001] The invention relates to a flow velocity measurement system, in particular to a flow velocity measurement system based on a sensor network, which belongs to the flow velocity measurement field. Background technique [0002] In engineering, it is usually necessary to measure the flow velocity of water or air within a certain point as the center to obtain the distribution of flow velocity in the space, and then apply it in engineering. [0003] At present, people usually use a current meter or anemometer to measure the points to be measured one by one, and finally draw a flow velocity distribution map within a spatial range, which has the following disadvantages: it is easily affected by artificial measurement methods and operating proficiency, often The error of the measurement result is relatively large, which will cause certain interference to the next engineering application; this method cannot reflect the distribution and change trend of the spatial...

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Problems solved by technology

[0003] At present, people usually use a current meter or anemometer to measure the points to be measured one by one, and finally draw a flow velocity distribution map within a spatial range, which has the following disadvantages: it is easily affected by artificial measurement methods and operating proficiency, often The error of the measurement result is relatively large, which will cause certain interference to the next engineering application; this method cannot reflect the distribution and change trend of the spatial flow velocity in real time, and the coordinates of the measurement points are difficult to accurately determine, and the defects are relatively large; although in a small area However, it is very difficult to artificially measure the flow velocity of water or air at a depth below the water surface or at a high place above the ground.

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