Systems, methods and apparatus for remote flow rate measuring are described herein, and in particular, for remote flow rate measuring suitable for measuring flow rates in irrigation systems.
It can be desirable to provide a way to measure flow rate in a fluid system. For example, in an irrigation system it can be desirable to measure flow rate at one or more locations in order to determine operating characteristic of the system, including identifying leaks, confirming operation, and the like. This desire can be of particular interest for drip irrigation systems where one or more devices may be subsurface. This desire can also be of interest for irrigation systems with subsurface water supply lines.
One solution is to use a multitude of flow meters each individually capable of providing an output of the flow rate at each flow meter. For example a flow meter can measure the flow and use an onboard processor to perform a calculation to determine and display the flow rate. However, the cost of the flow meters, including the onboard processor and display, and limit the use of such flow meters.
The methods and systems described herein can be used for remote measuring of flow rate from a multitude of different flow meters without requiring each flow meter to be capable of onboard processing and displaying of flow rate information. A single, handheld electronic device, such as a smart phone, tablet, laptop computer or the like, can advantageously be used to remotely measure the flow rate of a multitude of different flow meters, as will be described in detail herein.
The system can include the electronic device 10 and one or more flow meters 20. The electronic device can include a display 8, a processor 12, a memory 14, and a camera 16 and/or a light 18, as shown in
In a first exemplary embodiment, measurement of the flow rate can include using the light 18 of the electronic 10 device to allow a user to visually observe a stroboscopic effect with respect to the measured element 34. More specifically, the light 18 of the electronic device 10 can be flashed at a variable frequency, such as an increasing frequency. When the user observes a stroboscopic effect of the measured element 34 at a specific frequency, the user can so indicate using the electronic device 10. The electronic device 10 can use the frequency of the light 18 flashing when the user indicated observing the stroboscopic effect to calculate the flow rate through the flow meter 20.
For example, and with reference to the schematic images of
In a second exemplary embodiment, measurement of the flow rate can include using the camera 16 of the electronic device 10 to record either a sequence of images or a video of the rotation of the measured element 34. The electronic device can analyze the images or video to calculate the flow rate through the flow meter 20.
For example, and with reference to the schematic images of
As discussed above, one of the steps in the method of measuring the flow rate can be to identify one or more properties of the flow meter 20. The properties can include location of the flow meter 20 or measured element 34 within a flow network, type of flow meter 20 or measured element 34, specific one of a flow meter 20 or measured element 34, predicted flow rate, prior measured flow rate, and/or past measured flow rate. The identification can occur in a variety of different ways. For example, a user can use the electronic device 10 to manually select the one or more properties from a variety of selections, such as from one or more menus displayed on the electronic device 10. In another example, a user can press a button 40 on the electronic device 10 to actuate an automated selection by the electronic device 10, i.e., using the camera 16 to read a bar or other code on the flow meter 26. Combinations of automated and manual selection can also be utilized.
The electronic device 10 can be of many different forms, including those mentioned above. Exemplary devices can include a display 8, one or more buttons 40-44 (which can be physical or electronically generated on the display) a processor 12, a memory 14 accessible by the processor, and a camera 16 and/or light 18. The processor 12 can control the camera 16 and light 18, access the memory 14 for selecting and executing programs, such as for performing the first and second exemplary embodiments discussed above, access the memory 14 and/or save to the memory 14 as part of identification of one or more properties of the flow meter 20, save to the memory 14 information regarding the rotational speed of the measured element 34, access prior to subsequently stored information regarding the rotational speed of the measured element 34, calculate the flow rate, and/or control indicia on the display 8. The processor 12 can also communicate with an external, such as networked, memory 15.
The processor 12 of the electronic device can use the calculated flow rate in a variety of manners. For example, the processor 12 can cause the display to depict the calculated flow rate, compare the calculated flow rate with a predicted or previously measured flow rate and provide results of the comparison on the display 8 (e.g., indicating whether the results are within 10%, 20%, 30% or more), and/or indicate on the display 8 whether the flow rate meets a predetermined criteria for acceptability.
While the foregoing description is with respect to specific examples, those skilled in the art will appreciate that there are numerous variations of the above that fall within the scope of the concepts described herein and the appended claims.
This Application claims benefit of U.S. Provisional Application 61/799,918, filed Mar. 15, 2013, the disclosure of which is hereby incorporated by reference in its entirety.
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Number | Date | Country | |
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20140260673 A1 | Sep 2014 | US |
Number | Date | Country | |
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61799918 | Mar 2013 | US |