A bin level monitoring system bin level monitoring system comprising an optical sensor for sensing a feed level inside a feed bin, a circuit board communicatively connected to the sensor for receiving a level signal from the sensor and for processing the level signal to generate bin level data, a battery for powering the circuit board and sensor, an enclosure for enclosing the circuit board and a radio transmitter for transmitting the bin level data. The sensor may be a LIDAR sensor or a time-of-flight (ToF) sensor.

Systems, methods, and apparatus for determining a volume of remaining liquid in a container are disclosed. A container profile can first be developed using image analysis to determine a maximum liquid level in the container. The profile can then be broken into divisions, each corresponding to an equal volume. When real-world measurements of a liquid level in a real-world container are made, these can be translated to one of the divisions, which can be summed with all underlying divisions to estimate a volume of remaining liquid in the real-world container.

A fuel level circuit for dual tank configuration includes fuel level sensors in each of two tanks and a fuel level display that can display the fuel level in one tank. The tank to be displayed on the fuel level display is selected by a flow diverting valve that selects the tank from which fuel will be delivered to a prime mover. A magnetic element moves with the flow diverting valve to actuate a magnetic switch to open or close a circuit element. A fuel selection relay places the fuel level display in communication with the fuel level sensor of the selected fuel tank in response to the magnetic switch opening and closing the circuit element.

A water monitoring device includes a housing, a graduated tube, a magnet, and a flow sensor. The graduated tube is positioned inside the housing and has a longitudinal axis and an inlet diameter less than an outlet diameter. The magnet is positioned within the graduated tube and configured to translate along the longitudinal axis of the graduated tube. The flow sensor is mounted within the housing and outside the graduated tube. The flow sensor is configured to detect the magnet and the position of the magnet along the longitudinal axis of the graduated tube correlates to a flow level through the water monitoring device.

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.

An improved fluid level verification apparatus with an integral, internal source of illumination that is powered by an integral, internal energy source and is activated by a motion sensor or any other sensor commonly known in the art to detect the presence of a person in dark or dimly lit environments. The preferred light source is a light emitting diode (LED). A second embodiment of the integral, internal source of illumination that is powered by an integral, internal energy source and is activated by a motion sensor or any other sensor commonly known in the art to detect the presence of a person in dark or dimly lit environments is applied to a fluid reservoir tank.

A fluid level detection apparatus includes a vibrator, a vibration sensor, and a controller. The vibrator is configured to apply a vibration to a container that contains a fluid. The vibration sensor is configured to detect a vibration wave that is generated by the vibrator and propagates through the container. The controller is configured to control an operation of the vibrator and perform arithmetic processing on a detection signal obtained from the vibration sensor. The vibrator and the vibration sensor are provided on an outer wall surface of the container at respective positions that interpose, from above and below, a fluid level of the fluid provided in the container. The controller is configured to calculate a height of the fluid level, on the basis of the vibration wave detected by the vibration sensor.

A water monitoring device includes a housing, a graduated tube, a magnet, and a flow sensor. The graduated tube is positioned inside the housing and has a longitudinal axis and an inlet diameter less than an outlet diameter. The magnet is positioned within the graduated tube and configured to translate along the longitudinal axis of the graduated tube. The flow sensor is mounted within the housing and outside the graduated tube. The flow sensor is configured to detect the magnet and the position of the magnet along the longitudinal axis of the graduated tube correlates to a flow level through the water monitoring device.

A wound fluid collection system includes a canister adapted to collect bodily fluids from a tissue site. The canister includes an acoustic transducer adapted and positioned to insonify a cavity within the canister, the cavity being defined by a wall of the canister and the bodily fluids collected within the canister. A resonant frequency may be calculated based on a resulting received signal from the insonification. The resonant frequency may indicate a volume of the cavity within the canister. The difference between a known volume of the canister and the calculated volume of the cavity provides the volume of bodily fluid collected in the canister.

A fuel level circuit for dual tank configuration includes fuel level sensors in each of two tanks and a fuel level display that can display the fuel level in one tank. The tank to be displayed on the fuel level display is selected by a flow diverting valve that selects the tank from which fuel will be delivered to a prime mover. A magnetic element moves with the flow diverting valve to actuate a magnetic switch to open or close a circuit element. A fuel selection relay places the fuel level display in communication with the fuel level sensor of the selected fuel tank in response to the magnetic switch opening and closing the circuit element.