Diaper change alert

1. A diaper change alert system, the system comprising:

a diaper with wetness detection circuit installed inside a seat portion of the diaper;

an ionic composition sensor installed inside the seat portion of the diaper;

a humidity sensor installed inside of the seat portion of the diaper;

processing circuitry configured to

build one or more rash prediction models,

compute number of waste cycles per diaper change based on a signal received from the wetness detection circuit,

compute a total time per diaper change based on a signal received from the wetness detection circuit,

compute a rash threshold using rash information,

receive sensor data,

determine whether the rash threshold is reached using the one or more rash prediction models, and

transmit, via a network, a diaper change alert to an external device, when the rash threshold is reached.

2. The system according to claim 1 , wherein the rash threshold is a first rash threshold determined using the humidity sensor data collected over a period of time.

3. The system according to claim 2 , wherein the first rash threshold is determined by establishing a correlation between a humidity level and the total time per diaper change.

4. The system according to claim 1 , wherein the rash threshold is a second rash threshold determined using the ionic composition sensor data collected over the total time per diaper change.

5. The system according to claim 4 , wherein the second rash threshold is determined by establishing a correlation between the ionic composition at the time of or before the rash detection and the total time per diaper change.

6. The system according to claim 1 , wherein the rash threshold is a third rash threshold determined based on rash information identified visually and input in the processing circuitry.

7. The system according to claim 6 , wherein the rash information input in the processing circuitry is a rash property including a rash color, a rash size, and a rash texture.

8. The system according to claim 7 , wherein the rash property is determined by taking a rash picture, matching the rash picture with a plurality of rash pictures stored on a remote server, and extracting properties of the matching rash picture from the remote server.

9. The system according to claim 8 , wherein the third rash threshold is determined by establishing a correlation between the rash information, the number of waste cycles per diaper change, and the total time per diaper change.

10. A diaper change alert method, comprising:

computing, using processing circuitry, a number of waste cycles per diaper change;

computing, using the processing circuitry, a total time per diaper change;

computing, using the processing circuitry, a rash threshold using rash information;

receiving, using the processing circuitry, sensor data;

determining, using the processing circuitry, whether the rash threshold is reached using a rash prediction model; and

transmitting, via a network, a diaper change alert to an external device when the rash threshold is reached.

11. The method according to claim 10 , wherein the rash threshold is a first rash threshold determined using the humidity sensor data collected over a period of time.

12. The method according to claim 11 , wherein the first rash threshold is determined by establishing a correlation between a humidity level and the total time per diaper change.

13. The method according to claim 10 , wherein the rash threshold is a second rash threshold determined using the ionic composition sensor data collected over the total time per diaper change.

14. The method according to claim 13 , wherein the second rash threshold is determined by establishing a correlation between the ionic composition at the time of or before the rash detection and the total time per diaper change.

15. The method according to claim 10 , wherein the rash threshold is a third rash threshold determined based on rash information identified visually and input in the processing circuitry.

16. The method according to claim 15 , wherein the rash information input in the processing circuitry includes a rash property.

17. The method according to claim 16 , wherein the rash property is at least one of

a rash color, and

a rash size.

18. The method according to claim 16 , wherein the rash property is determined by taking a rash picture, matching the rash picture with a plurality of rash pictures stored on a remote server, and extracting properties of the matching rash picture from the remote server.

19. The method according to claim 18 , wherein the third rash threshold is determined by establishing a correlation between the rash information, the number of waste cycles per diaper change, and the total time per diaper change.

20. A non-transitory computer-readable medium storing a program which when executed by a computer, causes the computer to perform a method for diaper change alert, the method comprising:

computing a number of waste cycles before a diaper change;

computing a total time before each diaper change;

computing a rash threshold using rash information;

receiving sensor data;

determining whether the rash threshold is reached using a rash prediction model; and

transmitting, via a network, a diaper change alert to an external device when the rash threshold is reached.