A baby bottle sensor with content deduction logic is attachable to a baby bottle. The sensor uses programmed logic to deduce whether formula or some other fluid is being fed. Collected data is stored and reported to a paired Bluetooth device.

A level including a sensor that detects a tilt angle; a display unit including a plurality of strip-shaped display members that linearly emits light by an LED to display the tilt angle; and a controller that receives an output signal from the sensor and outputs a control signal so that a specific strip-shaped display member glows. The strip-shaped display members include one horizontal strip-shaped display member positioned at a middle of the display unit and a plurality of strip-shaped display members for tilt-angle display that has tips bent toward a center of the display unit. LEDs are attached to ends of the strip-shaped display members, respectively, and a pair of strip-shaped display members which is point-symmetrical with respect to the center of the display unit simultaneously glows according to the tilt angle.

A system and method for leveling a selected surface of a structure. The system includes a handheld mobile device and a platform leveling assembly (PLA) supportable on a structure to be leveled. The PLA includes a PLA controller and a PLA receiver communicatively coupled with the PLA controller. The handheld mobile device includes a tilt sensor configured to sense an attitude of a selected surface on which the handheld mobile device is placed; an output device configured to provide an indication to a user; an input device configured to receive input from the user; a transmitter configured to send wireless signals to the PLA receiver; and a mobile device controller communicatively coupled to the tilt sensor, the output device, the input device, and the transmitter and configured to cause the output device to provide an indication of the sensed attitude of the selected surface.

A system and method for leveling a selected surface of a structure. The system includes a handheld mobile device and a platform leveling assembly (PLA) supportable on a structure to be leveled. The PLA includes a PLA controller and a PLA receiver communicatively coupled with the PLA controller. The handheld mobile device includes a tilt sensor configured to sense an attitude of a selected surface on which the handheld mobile device is placed; an output device configured to provide an indication to a user; an input device configured to receive input from the user; a transmitter configured to send wireless signals to the PLA receiver; and a mobile device controller communicatively coupled to the tilt sensor, the output device, the input device, and the transmitter and configured to cause the output device to provide an indication of the sensed attitude of the selected surface.

A sensing system for a floating pool system for detecting and alerting a user of disturbances and detecting various levels and releasing chemicals into a liquid medium. The system comprises a controller that can comprise a wireless communication module and at least one sensor, and a receiving device can be configured to receive a signal from the wireless communication module. The controller can comprise at least one tilt sensor that is generally in an open position and closes with a waking event. The controller sends a message to the receiving device when a waking event occurs, alerting the user to a disturbance and possibly dangerous situation.

A sensing system for a floating pool system for detecting and alerting a user of disturbances and detecting various levels and releasing chemicals into a liquid medium. The system comprises a controller that can comprise a wireless communication module and at least one sensor, and a receiving device can be configured to receive a signal from the wireless communication module. The controller can comprise at least one tilt sensor that is generally in an open position and closes with a waking event. The controller sends a message to the receiving device when a waking event occurs, alerting the user to a disturbance and possibly dangerous situation.

A display system of a working machine includes: a tilt sensor that detects a pitch angle and a roll angle of a working machine; a calculation unit that calculates a tilting position on polar coordinates that indicates a magnitude and a direction of tilt of the working machine based on the detected pitch angle and roll angle; a display unit that displays various kinds of information; a display processing unit that displays, on a predetermined region on a display screen of the display unit, a monitor-displayed level that performs a polar coordinate display of the tilting position and a marked line indicating a preset magnitude of tilt; and a setting processing unit that performs a setting to change display content of the monitor-displayed level.

A display system of a working machine includes: a tilt sensor that detects a pitch angle and a roll angle of a working machine; a calculation unit that calculates a tilting position on polar coordinates that indicates a magnitude and a direction of tilt of the working machine based on the detected pitch angle and roll angle; a display unit that displays various kinds of information; a display processing unit that displays, on a predetermined region on a display screen of the display unit, a monitor-displayed level that performs a polar coordinate display of the tilting position and a marked line indicating a preset magnitude of tilt; and a setting processing unit that performs a setting to change display content of the monitor-displayed level.

Various embodiments of methods and apparatus for detecting a change in an orientation of a portion of a structure. In some embodiments, the apparatus includes a processor, an energy storage unit, a location reporting unit, a wireless communication module and one or more inclination sensors. In some embodiments, each of the one or more inclination sensors is configured to measure inclination by measuring an orientation of the each of the one or more inclination sensors relative to a gravitational acceleration vector.

Various embodiments of methods and apparatus for detecting a change in an orientation of a portion of a structure. In some embodiments, the apparatus includes a processor, an energy storage unit, a location reporting unit, a wireless communication module and one or more inclination sensors. In some embodiments, each of the one or more inclination sensors is configured to measure inclination by measuring an orientation of the each of the one or more inclination sensors relative to a gravitational acceleration vector.