A system and method for the detection of drowning within a body of water, the detection is provided by signal processing of acoustic signals obtained from within the body of water of acoustic signals received from an array of hydrophone submerged within the body of water.

Provided is a control method for preventing an accident in a tunnel. In this instance, the control method for preventing an accident in a tunnel includes estimating water amount information flowing into the tunnel based on at least one input information, determining whether it is an emergency situation based on the estimated water amount information, and when the emergency situation is determined, transmitting a warning message to an identification device, and controlling a device for opening and closing an entrance/exit of the tunnel. In this instance, the water amount information flowing into the tunnel is estimated through a deep learning based learning model, and the emergency situation is determined by comparing water level information of the tunnel with a threshold value.

A floating alerting device includes a housing enclosure which floats when closed, a rechargeable battery within the housing enclosure, a wireless transmitter circuit coupled to the rechargeable battery and housed within the housing enclosure, and one or more sensors configured for detecting objects entering a body of water or for measuring one or more among water quality, water temperature, or pool usage or tub usage where the one or more sensors are coupled to the wireless transmitter circuit and housed within the housing enclosure. The floating alerting device further includes an antenna coupled to the wireless transmitter circuit and one or more processors coupled to the wireless transmitter circuit and configured to transmit data from the one or more sensors to a remote computing device.

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.

An adjustable surf wake system enhances a wake formed by a watercraft travelling through water. The system may include a flap for deflecting water traveling past the stern of the watercraft, and/or a positioner operably connected to the flap for positioning the flap relative to a longitudinal axis of the watercraft between a neutral position and an outward position. Positioning a port flap in its extended position enhances a starboard surf wake, and positioning the starboard flap in its extended position enhances a port surf wake. A wake modifying system for modifying a wake produced by a watercraft traveling through water may include a rudder pivotally mounted to the watercraft for steering the watercraft, a fin pivotally mounted to the watercraft substantially along a centerline of the watercraft and forward the rudder, wherein the fin pivots about an upright axis to modify the wake produced by the watercraft traveling through the water, an actuator mounted within the watercraft and operably coupled to the fin for pivoting the fin relative to the centerline, and a controller mounted on the watercraft allowing an operator to control the actuator and selectively pivot the fin to a desired angle d relative to the centerline.

The swimming pool safety device comprises a circuit board, one or more motion sensors, a wireless transceiver, a cover, and one or more batteries. The swimming pool safety device may monitor a swimming pool for motion. In the event that motion is detected, the swimming pool safety device may transmit an alert message to a remote monitoring point to warn of a potential drowning. As non-limiting examples, the remote monitoring point may be a smart device, a home security system, or both. In some embodiments, the swimming pool safety device may comprise a temperature sensor and may be able to transmit the temperature of the water to the remoting monitoring point. The swimming pool safety device may be left free-floating in the water or may be coupled to the pool using a wall attachment.

A system and method for the detection of drowning within a body of water, the detection is provided by signal processing of acoustic signals obtained from within the body of water of acoustic signals received from an array of hydrophone submerged within the body of water.

Real-time detection and alerting for swimming pool safety includes obtaining signals from sensor devices installed in a swimming pool area having a swimming pool, ascertaining, based on the obtained signals, that an individual has entered the swimming pool and identifying, based on the obtained signals, characteristics of the individual who has entered the swimming pool, determining whether to raise an alert about the individual having entered the swimming pool, the determining being based at least in part on location of one or more other individuals relative to the swimming pool area and on checking pre-configured parameters for alerting, and performing processing based on the determining whether to raise an alert.

A swimming pool Smart Boat for pool maintenance and water safety is described. The Smart Boat includes chlorine and pH sensors for monitoring water quality and is capable of releasing chemicals into the pool water based on monitoring. A screen panel is configured to trap debris in the pool. Additionally, the Smart Boat provides for water safety by monitoring water disturbances which indicate a swimmer has entered the pool and sending an alert based on the detection of a disturbance. A remote control unit provides alerts and controls navigation, the release of chemicals and the screen panel position.

An adjustable surf wake system enhances a wake formed by a watercraft travelling through water. The system may include a flap for deflecting water traveling past the stern of the watercraft, and/or a positioner operably connected to the flap for positioning the flap relative to a longitudinal axis of the watercraft between a neutral position and an outward position. Positioning a port flap in its extended position enhances a starboard surf wake, and positioning the starboard flap in its extended position enhances a port surf wake. A wake modifying system for modifying a wake produced by a watercraft traveling through water may include a rudder pivotally mounted to the watercraft for steering the watercraft, a fin pivotally mounted to the watercraft substantially along a centerline of the watercraft and forward the rudder, wherein the fin pivots about an upright axis to modify the wake produced by the watercraft traveling through the water, an actuator mounted within the watercraft and operably coupled to the fin for pivoting the fin relative to the centerline, and a controller mounted on the watercraft allowing an operator to control the actuator and selectively pivot the fin to a desired angle d relative to the centerline.