28-03-2013 дата публикации
Номер: US20130080081A1
Принадлежит:
Soneter, LLC
A fluid flow meter estimates the velocity of water or another fluid flowing through pipe by comparing measurements of the water velocity to one or more pre-determined templates. The fluid flow meter may collect measurement signals from one or more flow sensors (e.g., ultrasonic transducers), estimate the fluid velocity or flow rate by comparing the measurement signals to the template(s), and either store the comparison results in local memory, transmit the results to a remote memory or server, or both. In some embodiments, the fluid flow meter transmits the results to a server via a wireless interface (e.g., a Zigbee, Bluetooth, or Wi-fi interface). The transducers and processing system can be powered by a battery, a power line, or, for manifolds installed outdoors, a solar cell. Example transducers and processing systems may also have a passive wake-up feature for power reduction; that is, they may only draw power when water or another fluid flows through the pipe. 1. A fluid flow meter to measure a velocity of a fluid flowing through a lumen , the fluid flow meter comprising:a hinged housing to fit about a structure defining the lumen;a sensor, disposed within the hinged housing, to provide a measurement signal representative of the velocity, the sensor comprising:(i) a first transducer to transmit an ultrasonic signal through the fluid flowing through the lumen;(ii) a second transducer to receive a reflected, scattered, or transmitted copy of the ultrasonic signal; and(iii) a front end to produce the measurement signal from the reflected, scattered, or transmitted copy of the ultrasonic signal;a memory to store a template associated with a possible velocity of the fluid;a processor, communicatively coupled to the sensor and to the memory, to perform a comparison of the measurement signal to the template and to determine an estimated velocity of the fluid based on the comparison; anda communications interface, communicatively coupled to the processor, to transmit ...
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