There are provided a fluid-path tester and a fluid-path testing-method capable of performing classification of abnormal-modes into a problem in a system, a leakage in a dedicated tube, a problem of a failure in a suppression pressure, and the like, an analysis of the abnormal-modes, and the like in a simplified manner. PAPS valves are included, and an abnormality emulator inspecting an abnormal condition in a fluid path of a DUT by emulating characteristics of the fluid-circuit represented by each of a plurality of abnormal-modes having possibilities of occurring in the fluid path of the DUT through pressurization of a fluid pressure using a compressor-under-test and adjustment of the fluid pressure using the PAPS valves.

A flow detector for detecting flow rates of fluid in pipes by measuring the temperature of the pipe and the ambient temperature and determining from the signals whether there is a flow in the pipe, by the shape of the temperature signals without providing any heat input to the pipe or fluid.

A natural gas automatic shutoff system can analyze the flow rate of natural gas through a pipe. When an anomaly is detected, the device can prevent further flow of natural gas through the pipe and can automatically notify the homeowner or authorized monitor, such as through a cell phone application or other device. Additionally, the homeowner or authorized monitor can manually control and/or monitor the flow of gas through the pipe in real-time, such as through a cell phone application or other device. At least one exemplary embodiment uses a motorized ball valve to control the flow of gas, a flow meter to measure the rate of natural gas flow through the pipe, and a microcomputer to analyze the flow and send notifications to the homeowner or authorized monitor.

Disclosed herein is a method and system for predicting water leakage events in district metered area of water distribution network. The method comprises receiving historic data of water flow and water pressure associated with DMA for predicting flow data and pressure data of water in the DMA for predefined future time period. Thereafter, method comprises retrieving plurality of cluster points corresponding to the predicted flow data, the pressure data, and an anomaly score identified for each of the plurality of cluster points from machine learning model. The method detects one or more cluster points as anomaly points by comparing anomaly scores with lower bound value and upper bound value and thereafter predicts leakage events corresponding to each of the detected anomaly points. In this manner, present disclosure predicts water leakage events in DMA for future time intervals and hence necessary leakage maintenance actions may be taken to avoid such events.

A water meter system and method may provide inline flow monitoring and leak detection that may track real-time water usage. The water meter system and method may utilize one or more dual pressure sensors and/or ultrasonic sensors to detect leaks quickly and automatically turn off a valve. A spool may be utilized that may provide the dual pressure sensors on opposite sides of a ball valve to separate upstream and downstream pressure zones when the valve is closed.

A test device including two measuring systems is provided. The test device includes a first measuring system which is configured for leakage testing of a test object, and a second measuring system which is configured for dimensional checking of the test object. The first measuring system has at least one connecting region, by which a test medium can be introduced into the test object. The test object can be set into rotation via the at least one connection region, on which the dimensional checking is based.

A method for detecting fluid consumption that includes: detecting, by a fluid meter mounted on an exterior of a pipe containing fluid, a first time of flight between a first ultrasonic transducer and a second ultrasonic transducer; detecting, by the fluid meter, a second time of flight between the second ultrasonic transducer and the first ultrasonic transducer; determining a time of flight difference between the first time of flight and the second time of flight; determining a volumetric flow rate based on an environmental correction parameter and the time of flight difference; and generating a fluid volume consumption total for fluid flowing through the pipe based on the volumetric flow rate.

A method for detecting a leakage of fluid in a supply grid is disclosed. The method includes measuring a flow of the fluid at first locations by first sensors; predicting a flow at a second location by a self-learning system based on the measured flows, wherein the self-learning system has been trained to predict the flow at a specified location in a supply grid; measuring an actual flow of the fluid at the second location by a second sensor located at the second location; ascertaining a difference between the actual flow measured at the second location and the flow at the second location predicted by the trained system; and outputting a notification of an assumed leakage when the ascertained difference is greater than a specified threshold. Devices and assemblies for detecting a leakage of fluid in a supply grid are also disclosed.

The disclosed embodiments include downhole leak monitor systems, downhole leak monitors, and methods to monitor downhole leaks. In one embodiment, a downhole leak monitor system includes a plurality of downhole leak monitors (monitor), where each monitor is deployed along a casing of a wellbore. Each monitor is operable to detect at least one property of a fluid flow through an aperture of a barrier and to determine a location of the aperture. Each monitor is also operable to establish a connection with at least one other monitor, the connection being one of a plurality of connections, together which, communicatively connects the monitor to a top monitor. Each of the monitor is further operable to transmit data indicative of the at least one property of the fluid flow and the location of the aperture to the at least one other monitor.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for performing leak detection. In one aspect, the method includes actions of obtaining water consumption data that is based on first sensor data generated by a connected water meter that is installed at a property, determining, based on the obtained water consumption data, (i) that a water leak is occurring at the property and (ii) a type of water leak that is occurring at the property, in response to determining (i) that a water leak is occurring at the property and (ii) a type of water leak that is occurring at the property, determining, based on a type of water leak that is determined to be occurring at the property, an operation to mitigate potential damages caused by the water leak, and initiating performance of the operation in order to mitigate potential damages caused by the water leak.