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US 12,188,836 B1Granted
Differential pressure detector and method for sensing body fall into pool
OwnerRichard Moerschellinventor
Life of this patent
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Abstract
A method for detecting an entry of an object into a pool includes providing at least one underwater sensor enclosure; providing at least one above ground sensor enclosure; calculating an average underwater pressure; calculating an average above ground pressure; calculating a change in moving average differential pressure by subtracting the average above ground pressure from the average underwater pressure; calculating a mass of an entrant object by multiplying a calibration factor by the change in moving average differential pressure; and alerting a user of the mass of the entrant object, whereby a positive mass represents water entry and a negative mass represents water exit.
Claims13
A method for detecting an entry of an object into a pool, comprising the following steps:
- providing at least one underwater sensor enclosure having at least one pressure sensor, the underwater sensor enclosures positionable beneath a surface of the pool, wherein the at least one pressure sensor of the at least one underwater sensor enclosure measures a summation of water pressure and barometric pressure;
- providing at least one above ground sensor enclosure having at least one pressure sensor, the above ground sensor enclosure positionable above the surface of the pool, wherein the at least one pressure sensor of the at least one above ground sensor enclosure measures barometric pressure;
- providing a receiver having a processing unit, the receiver communicably connected to each of the at least one pressure sensors of the at least one underwater sensor enclosure and of the at least one above ground sensor enclosure, respectively, wherein the receiver collects pressure sensor data from the at least one pressure sensor of the at least one underwater sensor enclosure and from the at least one pressure sensor of the at least one above ground sensor enclosure;
- positioning the at least one underwater sensor enclosure beneath a surface of the pool;
- positioning the at least one above ground sensor enclosure above the surface of the pool;
- measuring a summation of water pressure and barometric pressure with the pressure sensor of the at least one underwater sensor enclosure, wherein the pressure data from the pressure sensors within each enclosure is collected contemporaneously within less than 8 seconds;
- measuring barometric pressure with the pressure sensor of the at least one above ground sensor enclosure;
- receiving, in a processing unit within the receiver, data from each of the at least one pressure sensors of the at least one underwater sensor enclosure and of the at least one above ground sensor enclosure, respectively;
- collecting pressure sensor data from the at least one pressure sensor of the at least one underwater sensor enclosure and from the at least one pressure sensor of the at least one above ground sensor enclosure;
- defining a set of pressure data tranches in the processing unit to comprise:
- the underwater member data tranches having data collected from the at least one pressure sensors of the at least one underwater pressure sensor enclosure, and an above ground member data tranche having data collected from the at least one pressure sensor of the at least one above ground pressure sensor enclosures, whereby the data from the underwater member data tranches and above water data tranches were collected contemporaneously within less than 16 seconds,
- wherein the processing unit performs a data processing method having the steps of:
- calculating an average underwater pressure from the underwater member data tranches of the set;
- calculating an average above ground pressure from the above ground member data tranches of the set;
- calculating a differential pressure by subtracting the average above ground pressure from the average underwater pressure;
- calculating a first moving average differential pressure to determine the average differential pressure over a time period;
- calculating a second moving average differential pressure at a time gap before the first moving average is determined;
- calculating a change in moving average differential pressure by subtracting the second moving average differential pressure from the first moving average differential pressure;
- calculating a mass of an entrant object by multiplying a calibration factor by the change in moving average differential pressure;
- and
- alerting a user of the mass of the entrant object, whereby a positive mass represents water entry and a negative mass represents water exit.
18 more elements
A method for detecting an entry of an object into a pool,
- comprising the following steps:
- measuring a summation of water pressure and barometric pressure with at least one underwater sensor positionable beneath a surface of the pool;
- measuring barometric pressure with at least one above ground sensor positionable above the surface of the pool;
- receiving, in a receiver, data from each of the at least one underwater sensors and of the above ground sensors, respectively;
- collecting pressure sensor data from the at least one underwater sensor and from the at least one above ground sensor;
- defining a pair of pressure data tranches to comprise:
- an underwater member data tranche having data collected from the at least one pressure sensor of the underwater pressure sensor enclosure, and an above ground member data tranche having data collected from the at least one pressure sensor of the above ground pressure sensor enclosure whereby the data from each of the members of the pair were collected contemporaneously within less than 8 seconds;
- calculating an average underwater pressure from the underwater member data tranche;
- calculating an average above ground pressure from the above ground member data tranche;
- calculating a differential pressure by subtracting the average above ground pressure from the average underwater pressure;
- calculating a moving average pressure to determine the average differential pressure over a time period;
- calculating a mass of an entrant object by multiplying a calibration factor by a difference of a current moving average pressure with at least one prior moving average pressure;
- and
- alerting a user of the mass of the entrant object, whereby a positive mass represents water entry and a negative mass represents water exit.
11 more elements
A method for detecting an entry of an object into a pool, comprising the following steps:
- positioning at least one underwater sensor enclosure beneath a surface of the pool;
- positioning at least one above ground sensor enclosure above the surface of the pool;
- measuring a summation of water pressure and barometric pressure with the at least one underwater sensor enclosure having at least one pressure sensor;
- measuring barometric pressure with the at least one above ground sensor;
- receiving, in a processing unit within a receiver, data from each of the at least one pressure sensors of the underwater sensor enclosure and of the above ground sensor enclosure, respectively;
- sequentially collecting pressure sensor data from the at least one pressure sensor of the underwater sensor enclosure and from the at least one pressure sensor of the above ground sensor enclosure;
- defining a pair of pressure data tranches in the processing unit to comprise:
- an underwater member data tranche having data collected from the at least one pressure sensor of the underwater pressure sensor enclosure, and an above ground member data tranche having data collected from the at least one pressure sensor of the above ground pressure sensor enclosure, whereby the data from each of the members of the pair were collected contemporaneously within less than 8 seconds,
- wherein the processing unit is further configured for:
- calculating an average underwater pressure from the underwater member data tranche;
- calculating an average above ground pressure from the above ground member data tranche;
- calculating a differential pressure by subtracting the average above ground pressure from the average underwater pressure;
- calculating a first moving average differential pressure to determine the average differential pressure over a time period;
- calculating a second moving average differential pressure at a time gap before the first moving average is determined;
- calculating a change in moving average differential pressure by subtracting the second moving average differential pressure from the first moving average differential pressure;
- calculating a mass of an entrant object by multiplying a calibration factor by a difference of a current moving average differential pressure with at least one prior moving average differential pressure;
- and
- alerting a user of the mass of the entrant object, whereby a positive mass represents water entry and a negative mass represents water exit.
15 more elements
Dependencies are inferred from the claim text.