A fuel pump monitoring module for monitoring attributes related to a fuel pump at a gas station. The fuel pump monitoring module may have a body for attachment to the fuel pump. A transmitter or receiver may be connected to the body and configured to communicate with a bioremediation dispensing unit using a transmission signal. A processor may be connected to the body and configured to determine the location of the bioremediation dispensing unit relative to the fuel pump monitoring module based on the transmission signal.

A toilet management system includes a toilet bowl device installed in a toilet room, a management device configured to manage a use situation of the toilet bowl device, and a communication device configured to transmit use situation information related to the use situation of the toilet bowl device to the management device. The management device includes an acquirer configured to acquire the use situation information from the communication device, and an abnormality detector configured to detect an abnormality of the toilet bowl device or a facility or equipment installed inside or around the toilet room when the use situation information acquired by the acquirer matches a predetermined condition.

A system for power and data communications within a fuel tank and across a wall of the fuel tank includes a fuel height sensor and a sealed connector extending through a wall of a fuel tank. The system also includes an electric power connection between the fuel height sensor and the sealed connector. The system additionally includes an internal data communications connection between the fuel height sensor and the sealed connector, wherein the electric power connection comprises a resistive non-metallic wire.

A tank volume measurement system and method. The tank volume measurement system receives a tank identifier indicating which tank the level sensor is sensing, receives a tank level indication from a level sensor, correlates the tank level to a tank volume using a calibrated strapping chart, and outputs a volume indication to a user.

An apparatus for measuring at least one of the level and the velocity of a media in a channel, the apparatus including a remote measuring device which comprises: a sensing unit having at least one sensing assembly arranged to measure at least one of the level and the velocity of the media, a two-wire interface arranged to receive power from an external power source and permit data transfer between the sensing assembly and an external control unit over the two-wire interface, an energy store for storing energy transmitted to the measurement device over the two-wire interface, a controller, and characterised in that the remote measuring device further comprises: an indicator means for providing in-situ feedback to a user on the status of the measuring device, and a switching means which is operable in response to signals from the controller to selectively connect each of the sensing unit and the indicator means to the energy store.

The present application provides a magnetostrictive liquid level meter and a liquid level measurement method thereof and belongs to the technical field of a liquid level meter. The meter comprises a holder; several measurement units configured to be fixed sequentially to the holder along a lengthwise direction of the holder; several waveguide wires configured to be connected with the several measurement units in a one-to-one correspondence mode, wherein each waveguide wire is arranged along the lengthwise direction of the holder, and a tail end of a upper waveguide wire is at least extended to a head end of a lower waveguide wire; and the magnetic float configured to be sheathed outside the holder, wherein the magnetic float moves up and down along the holder when a liquid level is changed, and one or more waveguide wires are located in a magnetic field formed by the magnetic float.

A logic circuitry package for a replaceable print apparatus component includes an interface to communicate with a print apparatus logic circuit, and at least one logic circuit to receive, via the interface, requests corresponding to different sensor IDs with the component connected to the apparatus. The logic circuit is to transmit, via the interface, a digital value in response to each request. The digital values corresponding to the different sensor IDs are distinct.

A system for preventing overflow of a toilet includes a sensor, a processor and an actuator. The sensor senses a parameter caused by fluid dynamics within the toilet during a flush cycle. The parameter may involve vibration, sound, pressure, fluid flow rate or other detectible characteristics of the toilet. The processor uses information regarding the parameter that is gathered by the sensor to evaluate the condition of the flush cycle to determine if an impeded flush condition exists. In the event of an impeded flush condition, the processor directs the actuator to close a valve, which may be the toilet flapper valve in some embodiments. Also disclosed are methods for preventing toilet overflow, detecting an impeded flush condition and calibrating the system.

A fluid dispenser, such as a skincare product dispenser, comprises a dispenser housing configured to hold a reservoir of fluid for dispensing and a drive assembly for interacting with the reservoir and causing dispensing of the fluid. A fluid detection sensor is positioned within the dispenser housing proximate the reservoir and configured to detect a capacitance level therein. A controller is configured to determine, based on data from the fluid detection sensor, a change in the fluid level across a dispense. The controller is also configured to determine, based on the determined change, that the fluid level in the reservoir reaches a threshold level and cause an action, such as providing an alert, sending information to a remote server, or modifying an operating parameter.

A liquid providing system of detecting a target container includes a main body, a holder, an optical sensor and an operational processor. The main body has a supporting platform. The holder is disposed on the supporting platform, and the holder is made by low reflectivity material and adapted to hold the target container. The optical sensor is disposed above the supporting platform and adapted to output a detection image containing the target container and the holder. The operational processor is electrically connected to the optical sensor, and adapted to analyze the detection image and then acquire an effective feature inside the detection image for distinguishing the target container from the holder.