Described herein are systems and method for monitoring weather conditions and controlling field operations based on the weather conditions. In one embodiment, a system for monitoring weather conditions for field operations includes a plurality of weather devices for monitoring weather conditions of fields with at least at one weather device in proximity to each field being monitored and at least one weather device having an electronics module for determining weather data including precipitation data. The system also includes an agricultural computer system having at least one processing unit for executing instructions for monitoring weather conditions. The at least one processing unit is configured to execute instructions to receive weather data from the plurality of weather devices for monitoring weather conditions of fields, to process the weather data, and to generate data including precipitation rate for monitoring weather conditions and operations of the plurality of weather devices.

There is proposed an apparatus and method for measuring fluid usage from a container. The apparatus in one form includes a proximity sensor or sensors positioned in, or adjacent, an outlet of said container and configured to monitor the presence or absence of said fluid within or adjacent said outlet, an angle sensor for determining a first angle of said container when said fluid begins to flow through the outlet, and for determining a second angle of said container when said fluid stops flowing through said outlet, and a transmitter for sending data from the proximity sensor/s and angle sensor or processed data therefrom, to a computing device and/or display unit, wherein the data or processed data is used to calculate or indicate a volume of the fluid having passed through the outlet.

A method of measuring the speed of a fluid comprising the following steps: generating a plurality of pseudorandom frequencies (fus_n); for each pseudorandom frequency (fus_n), emitting ultrasound signals into the fluid to travel along a path of defined length; receiving the ultrasound signals; for each received ultrasound signal, producing a travel time measurement, so as to generate for each pseudorandom frequency (fus_n) a predefined number of travel time measurements; for each pseudorandom frequency (fus_n), evaluating the accuracy of the measurements; for evaluating the speed of the fluid, making use of the measurements produced for the pseudorandom frequency that presents the greatest accuracy.

A method of measuring the speed of a fluid comprising the following steps: generating a plurality of pseudorandom frequencies (fus_n); for each pseudorandom frequency (fus_n), emitting ultrasound signals into the fluid to travel along a path of defined length; receiving the ultrasound signals; for each received ultrasound signal, producing a travel time measurement, so as to generate for each pseudorandom frequency (fus_n) a predefined number of travel time measurements; for each pseudorandom frequency (fus_n), evaluating the accuracy of the measurements; for evaluating the speed of the fluid, making use of the measurements produced for the pseudorandom frequency that presents the greatest accuracy.

An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.

A method is for determining a gas amount, which can be dispensed by a dispensing device, in particular in the form of a hydrogen gas amount, by a gas meter (36). A part of the main gas stream flowing to the dispensing device (26) is branched off by a flow divider (20) mounted upstream of the dispensing device (26), when viewed in the direction of the gas stream, for a quantitative measurement in the secondary flow by the gas meter (36).

A method operates a counter device for a fluid which can be connected via a connecting device to a meter point having at least one line through which the fluid flows. A control device is configured when connected via at least one operating parameter specific for the meter point and/or a meter point environment. When the counter device is taken into operation, the operating parameters are called up by a communication device on the counter device side communicating wirelessly by radio via a communication link with a passive communication device on the meter point side. The operating parameters are stored in a storage device of the passive communication device.

Provided is a cylinder intake air amount estimation apparatus for an internal combustion engine, which is capable of highly precisely calculating a cylinder intake air amount based on an AFS intake air amount in a control system for an engine including a supercharger. A cylinder intake air amount calculation part calculates the cylinder intake air amount based on an intake opening intake air amount by using a physical model of an intake system derived based on a volume efficiency acquired by considering an intake manifold as a reference, which is a volume efficiency of air entering a cylinder from the intake manifold, a virtual intake manifold volume, and a stroke volume per cylinder, the physical model being adapted to the control system for an engine including a supercharger.

Provided is a cylinder intake air amount estimation apparatus for an internal combustion engine, which is capable of highly precisely calculating a cylinder intake air amount based on an AFS intake air amount in a control system for an engine including a supercharger. A cylinder intake air amount calculation part calculates the cylinder intake air amount based on an intake opening intake air amount by using a physical model of an intake system derived based on a volume efficiency acquired by considering an intake manifold as a reference, which is a volume efficiency of air entering a cylinder from the intake manifold, a virtual intake manifold volume, and a stroke volume per cylinder, the physical model being adapted to the control system for an engine including a supercharger.

The present invention relates to a flowmeter for monitoring physical parameters of fluid passing through the flowmeter. The flowmeter being installed in a plant and communicatively connected through a gateway device to a server having a virtual model. The flowmeter comprising: a processing unit for computing a first processed data of a physical parameter associated with the fluid measured by the flowmeter. The flowmeter receives a second processed data from the server having the virtual model, wherein the virtual model provides the second processed data by computing the second processed data based on the first processed data and data from at least one sensor provisioned in the plant. The present invention also provides for a system for monitoring physical parameters of fluid passing through a pipe in a plant with the flowmeter.