A bladder volume detection device, the device comprising a sound transmitter and at least one receiver the device configured to ping the bladder with an acoustic signal having a resonant frequency of up to about 20 k Hz generated with said transmitter.

A method for determining and/or monitoring a process variable of a medium using a vibronic sensor includes: exciting a mechanically vibratable unit to vibrate in a first vibration mode via a drive/receiving unit using a first excitation signal; receiving and converting the vibrations of the first vibration mode into a first reception signal; generating the first excitation signal based on the first reception signal; determining the process variable from the first reception signal; exciting the vibratable unit to vibrate in a second vibration mode via the drive/receiving unit via a second excitation signal; receiving and converting the vibrations the second vibration mode into a second reception signal, where the second excitation signal is generated based on the second reception signal; and compensating for an influence of a temperature of the medium on the first reception signal using the second reception signal.

The innovation described herein generally pertains to a system and method related a wireless remote monitoring system for a tank, wherein the wireless monitoring system is incorporated into or coupled to a lid for the tank. The wireless remote monitoring system for the tank can include a cover system that includes a lid mountable on a corresponding tank, the lid comprising a space sized and shaped for receiving the wireless remote monitoring system therein, wherein the wireless remote monitoring system is operatively coupled to a sensor.

A method of monitoring a level of a liquid in a tank of a moveable vehicle includes sensing an orientation of the moveable vehicle relative to a horizontal plane with a vehicle orientation sensor, determining if the orientation of the moveable vehicle is less than an allowable orientation threshold or if the orientation of the moveable vehicle is equal to or greater than the allowable orientation threshold, measuring a level of the liquid in the tank of the moveable vehicle with a liquid level sensor when the orientation of the moveable vehicle is less than the allowable orientation threshold, defining a sensed fluid level value with the controller, and saving the sensed fluid level value in a memory of the controller. The sensed fluid level value is based on the measured level of the liquid when the orientation of the moveable vehicle is less than the allowable orientation threshold.

A method of monitoring a level of a liquid in a tank of a moveable vehicle includes sensing an orientation of the moveable vehicle relative to a horizontal plane with a vehicle orientation sensor, determining if the orientation of the moveable vehicle is less than an allowable orientation threshold or if the orientation of the moveable vehicle is equal to or greater than the allowable orientation threshold, measuring a level of the liquid in the tank of the moveable vehicle with a liquid level sensor when the orientation of the moveable vehicle is less than the allowable orientation threshold, defining a sensed fluid level value with the controller, and saving the sensed fluid level value in a memory of the controller. The sensed fluid level value is based on the measured level of the liquid when the orientation of the moveable vehicle is less than the allowable orientation threshold.

A method of monitoring a level of a liquid in a tank of a moveable vehicle includes sensing an orientation of the moveable vehicle relative to a horizontal plane with a vehicle orientation sensor, determining if the orientation of the moveable vehicle is less than an allowable orientation threshold or if the orientation of the moveable vehicle is equal to or greater than the allowable orientation threshold, measuring a level of the liquid in the tank of the moveable vehicle with a liquid level sensor when the orientation of the moveable vehicle is less than the allowable orientation threshold, defining a sensed fluid level value with the controller, and saving the sensed fluid level value in a memory of the controller. The sensed fluid level value is based on the measured level of the liquid when the orientation of the moveable vehicle is less than the allowable orientation threshold.

A method of monitoring a level of a liquid in a tank of a moveable vehicle includes sensing an orientation of the moveable vehicle relative to a horizontal plane with a vehicle orientation sensor, determining if the orientation of the moveable vehicle is less than an allowable orientation threshold or if the orientation of the moveable vehicle is equal to or greater than the allowable orientation threshold, measuring a level of the liquid in the tank of the moveable vehicle with a liquid level sensor when the orientation of the moveable vehicle is less than the allowable orientation threshold, defining a sensed fluid level value with the controller, and saving the sensed fluid level value in a memory of the controller. The sensed fluid level value is based on the measured level of the liquid when the orientation of the moveable vehicle is less than the allowable orientation threshold.

To provide a flood detection technique with which a breakdown is less likely to occur over a long period, maintenance costs are low, and the occurrence of an abnormal water level is less likely to be erroneously determined. An inundation detection device detects a received signal strength that is the strength of a received response signal received from an RF sensor installed at a flood detection location, detects a dispersion within a specific time, detects a normal reception rate, and outputs a flood detection signal in a case where the dispersion is greater than or equal to a specific threshold and the normal reception rate is less than or equal to a specific threshold.

A fluid storage monitoring system includes a fluid storage receptacle defining an interior volume and including a drainage fluid line, a fluid control valve in the drainage fluid line, and a monitoring unit coupled to the fluid storage receptacle. The monitoring unit includes a sensor to attach to the fluid storage receptacle and detect an amount of empty space between fluid contents of the fluid storage receptacle and the sensor, a transmitter to receive and transmit data from the sensor and a remote server, and a controller to selectively open the fluid control valve.

The invention relates to an articulated vehicle including a plurality of vehicles or vehicle parts connected to one another in an articulated manner, a passage arranged between adjacent ones of the vehicles or the vehicle parts, the passage having an inner lining and an outer lining laterally spaced from the inner lining so as to define an empty cavity therebetween, one front wall on each side of the passage between the two adjacent vehicles or vehicle parts, the inner lining and the outer lining being arranged at the front walls of the two adjacent vehicles or vehicle parts while forming the empty cavity therebetween, a noise-absorbing noise insulation layer applied to a free surface on each of the front walls in the empty cavity between the inner and outer lining, wherein each of the noise-absorbing noise insulation layer extends into the empty cavity and terminates at a surface facing opposite to the each of the front walls respectively.