SMART SYSTEM OF DIAPER REPLACEMENT TIME ALERT WITH TEMPERATURE DETECTION SENSOR WITHOUT BODY CONTACT

Abstract

This invention is a kind of alert diaper that can detect moisture and measure body temperature. The moisture detection sensor used in the invention consists of two sheet electrodes made of aluminum, which are placed on top of each other in layers and a layer of permeable and non-conductive fabric is located in the space between the electrodes. By exposing the moisture between the two electrodes, electric current is established between the two electrodes, and the current is detected by the circuit. There's also the ability to measure body temperature with a kind of infrared receiver sensor located outside the diaper. The sensor detects body temperature without contact with the body by receiving heat radiation emitted from the body. The information processed by the Bluetooth system is then displayed in application installed on mobile phone, PC and other devices equipped with the Bluetooth system.

Claims

1. In the invention, the moisture detection sensor is layered and the electrodes of this sensor, having sheet-structure are placed parallel to each other.

2. According to claim 1, the sensor is made of two electrodes which one of these electrodes is at the top and the other at the bottom, and is located in the space between the two insulating and permeable layer electrodes; a layer of moisture-absorbing and permeable fabric (2) also covers the surface of the electrode at the top (4).

3. According to claim 1, there are many small holes on the surface of the electrodes of the sensor. These non-matching holes are designed to allow moisture to penetrate all layers of the sensor, as well as to prevent the diaper from becoming less permeable.

4. In the invention, a high-precision electronic board has been designed to detect weak electrical signals of feces and the weak signals sent by the moisture detection sensor are amplified by the transistors in the circuit.

5. According to claim 4, in the invention, no substance, including all types of salts, has been used to increase the moisture conductivity inside the diaper.

6. According to claim 2, to increase efficiency in adult feces detection, holes in the surface of electrode 4 in the Anus area are slightly larger than in other areas, and the fabric covering the electrode at the top (2) may have holes in this area that are perfectly aligned with the holes in the surface of the first electrode (4).

7. According to claim 5, there are no electronic components or devices inside the diaper other than the paper moisture detection sensor.

8. According to claim 4, the moisture on the surface of the skin, which can be caused by sweating or other factors, may be mistaken for urine or feces due to the high accuracy of the electronic circuit in receiving weak signals from the moisture detection sensor; However, due to the layered electrodes of the moisture sensor, it does not interfere with the operation of the sensor and does not cause a fake alarm.

9. According to claim 8, the moisture on the surface of the skin is absorbed by layer 2, which covers electrode 4, and reaches the electrode at the top (4). However, because the amount of the moisture is very low, it does not have the power to pass through the holes in the surface of the electrode 4, and so the moisture on the surface of the skin does not affect the performance of the sensor.

10. According to claim 9, in the invention, there are no restrictions on the production of diapers containing plant extracts as well as the use of skin creams by the user.

11. In the designed software, to display alarms, there are capabilities to classify alarms based on date and time, delete and add categories, as well as display alarms on the chart.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG. 1: General view of the diaper and displaying the direct connection of the electronic board to the moisture sensor electrodes

[0020] FIG. 2: Explosive view and displaying how the moisture sensor electrodes are placed inside the diaper

[0021] FIG. 3: Explosive view of electronic board and displaying how the moisture detection sensor is placed in the electronic board frame

[0022] FIG. 4: A view of the electronic board on the diaper and the connection of the temperature sensor to the electronic board by wire

[0023] FIG. 5: A view of diapers along with electronic board and temperature detection sensor

DESCRIPTION OF THE INVENTION

[0024] The moisture detection sensor used in the invention consists of two sheet electrodes made of aluminum, and the electrodes are layered at the top and bottom. The first layer is the electrode located at the top (4) and has small and large holes and the second layer (3) is a thin, non-conductive fabric with a very high permeability that is placed between two electrodes (between the first and third layers) and the third layer (5) is the electrode that is located at the bottom. To prevent diaper permeability; the third layer is also porous and perforated, but the holes in the layer do not match the first layer. To prevent direct contact of the first layer of the sensor with the body, a layer of permeable and non-conductive fabric (2) covers the sensor when the diaper is made on the upper electrode.

[0025] To detect the moisture by the circuit, the electronic board 9 is connected to electrodes 4 and 5 and a weak electric charge is generated in the electrodes by the battery placed in the circuit, and one of the electrodes takes a negative charge and the other a positive charge. When urine or feces are placed in the diaper, the moisture from the urine and feces contacts with the first layer (4), which is the same electrode at the top, and the first layer (4) is wetted; the moisture, then, passes through the holes in the surface of the first layer and contacts with the second layer (3); because the second layer absorbs moisture, is permeable and thin, the moisture passes through it and reaches the third layer (5), which is the same electrode located at the bottom. In this way, the conductive material contact with both electrodes and the circuit is closed. As the circuit doses, electric currents flow between the anode and the cathode, and this current is detected by the circuit. To protect the environment, the battery placed in the circuit is not disposable and is charged by the Micro USB port.

[0026] Urine is highly conductive due to the presence of various ions, and infants feces is also a good conductor of electricity due to its watery nature. However, the moisture from feces of adults is low and therefore does not have high electrical conductivity, and when the moisture from the feces is placed between the electrodes, a very weak current is established between the electrodes, which it, alone, is not detectable for the circuit. To solve this problem, a transistor has been used to amplify the weak input currents, and no by-products have been used to increase the moisture conductivity inside the diaper. To better detect feces by the system, holes in the upper electrode, or the first layer (4) in the Anus area, are designed to be slightly larger than other areas.

[0027] The electronic board of the system (9) is placed outside the diaper and has the ability to be moved and used continuously, and there are no parts and devices inside the diaper except the moisture detection sensor. Diaper ergonomics are maintained and are suitable due to the sheet and flexible nature of the sensor and the circuit design of moisture detection and temperature detection systems in an electronic board.

[0028] The use of layered moisture sensor in the invention is due to the high accuracy of the electronic circuit in detecting weak currents. If the electrodes were placed side by side and parallel to each other, it was possible that, when the body hits the sensor, the moisture from the sweat on the surface of the skin may be absorbed and mistakenly detected in the urine or feces. But to solve the problem in this invention, the electrodes are placed parallel to each other but up and down in the diaper (FIG. 2) and the moisture from the sweat only contact with the first layer (4) but does not pass through it; because the moisture on the surface of the skin which is less than the moisture in the urine and feces is absorbed by layer 2 which covers the electrode at the top; and because electrode 4 is made of aluminum and is resistant to moisture penetration, the moisture on the surface of the skin does not penetrate the lower layers. It should be noted that the holes placed on the surface of the electrode 4 are designed to pass more moisture such as urine and feces; and the moisture from perspiration, because it is absorbed by layer 2, does not have the power to pass through the holes in the surface of electrode 4. According to the explanation given, there are no restrictions on the use of skin creams in the diaper, and this feature is very useful in cases where it is not possible to change the diaper after the alarm is issued. The electronic board is connected directly to the sheet electrodes (4 and 5) by damps or small magnetic connectors located outside the diaper. In the invention, no wire is used to connect the sheet electrode to the electronic board.

[0029] The electronic board (9) is connected to the mobile phone, PC and other devices with Bluetooth system by Bluetooth, and when the moisture is detected inside the diaper, the Bluetooth system emits an alarm signal and parents or nurses will be notified of the presence of urine or feces in the diaper by the sound alarm generated by the application installed on the mobile phone. The application is designed to receive and store alarms for various platforms; For example, the application is installed on a mobile phone, and in addition to creating an audio alarm for changing diapers, it has the ability to automatically save alarms in order of date and time, classification of alarms, as well as displaying alarms on the chart based on date and time.

[0030] An infrared receiver sensor (8) is located outside the diaper and receives and processes the heat waves emitted by human body heat, which is the same as infrared, it detects body temperature based on the intensity of infrared radiation emitted from the body. The microcontroller for the system in the circuit is programmed in such a way that if nurses or parents activate the feature with the application, the system automatically senses the body temperature during the preset intervals and transmits it to mobile phone via Bluetooth and the body temperature is displayed in degrees Celsius, and if the temperature is above 37.5 degrees Celsius, the audio alarm will be activated.

[0031] The sensor (8), which is located outside the diaper, is connected to the electronic board (9) by the wire (10) and is placed in the Electronic board cover frame; In order to use it, the sensor is slid out of the frame and attached to the edge of the diaper or clothing by a mechanical clip (6) in such a way that it is in front of the skin. The sensor does not contact with the body directly and does not stick to the body, but in order to minimize the error in the temperature sensor, the frame in which the sensor is located (8) is designed in such a way that the sensor should be as close to the body as possible so that it can receive the heat waves emitted from the surface of the body well.

[0032] In this section, there is also the ability to automatically save the body temperature and alarm alerts for high fever based on date and time, classification of alarms as well as display them on the chart.