CN108938209B

CN108938209B - Wireless induction type diaper and monitoring equipment thereof

Info

Publication number: CN108938209B
Application number: CN201710352156.XA
Authority: CN
Inventors: 赖中平; 张国兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-18
Filing date: 2017-05-18
Publication date: 2021-10-19
Anticipated expiration: 2037-05-18
Also published as: CN108938209A

Abstract

The invention provides a wireless induction type diaper and a monitoring device thereof, wherein the wireless induction type diaper comprises: a diaper and a frequency shifted radio frequency identification tag, wherein the diaper has an absorbent layer for absorbing liquid, the frequency shifted radio frequency identification tag comprising: the antenna at least comprises an extension antenna, the reading frequency band of the antenna is deviated from the reading frequency band of the monitoring equipment in a normal state, the antenna is arranged on the surface of a water-absorbable substrate, the extension antenna and the water-absorbable substrate are in contact with an absorption layer of a diaper, the water-absorbable substrate can be wetted after the absorption layer absorbs urine or moisture, the dielectric coefficient of the substrate of the antenna is further changed, the reading frequency band of the antenna is deviated to the reading frequency band of the monitoring equipment, and the monitoring equipment sends notification information to indicate that the diaper is wet.

Description

Wireless induction type diaper and monitoring equipment thereof

Technical Field

The invention relates to a diaper, in particular to a wireless induction type diaper provided with a frequency shift type radio frequency identification tag and a monitoring device thereof, which can be read by the monitoring device after the diaper absorbs urine or moisture, and further the monitoring device sends out notification information to indicate that the diaper is wet.

Background

Conventional diapers have only a function of absorbing urine or moisture, and do not have a function of actively informing that the diaper is wet. Still another known diaper can alert bystanders that the diaper is wet by changing the color of the appearance of the diaper after absorbing urine or moisture; in the patent certificate No. CN103845156 of taiwan patent application, which has been approved and announced, a diaper with a sensing function is proposed, which can be used with a wireless rf reader, and the diaper with a sensing function includes: an absorption pad, a sensing line set and a radio frequency identification tag. The absorbent pad has two waist portions located on two opposite side edges, respectively, and includes: the waterproof layer is arranged between the inner liner layer and the waterproof layer. The release paper extends inwards from one side of the absorption pad, so that the absorption pad forms an opening in the side containing space. The sensing line group comprises at least two sensing lines which are arranged between the lining layer and the waterproof layer, each sensing line at least partially passes through the absorption layer, two ends of each sensing line respectively extend towards the waist part side, and one end of each sensing line is positioned in the accommodating space; the wireless radio frequency identification tag is removably arranged in the accommodating space and is electrically connected with the sensing line; when the absorption layer of the absorption pad absorbs excrement and is moist, the two sensing lines are electrically conducted with each other and form a loop together with the wireless radio frequency identification tag, and the wireless radio frequency reader is used for reading the wireless radio frequency identification tag to detect the resistance value change between the two sensing lines and send out a notification signal. Although the removable RFID tag is adopted in the diaper with the sensing function, compared with a system connected with a traditional electronic sensor, the production cost can be reduced to a limited extent (because the production cost of the existing RFID tag is continuously reduced), the fragile RFID tag is easily damaged by the design of frequent extraction and replacement, and the diaper is inconvenient to use.

In addition, taiwan patent certificate I533857, which has been approved and announced, proposes a diaper structure with a wireless wet-through detection function and a diaper detection system thereof, including a diaper body, at least one communication chip, at least one metal antenna and a signal reader, wherein the communication chip and the metal antenna are attached to the outer side of the leak-proof layer of the diaper and are connected with each other to form a wireless radio frequency Tag (Tag), when the diaper body is in a wet-through state, the change of the dielectric coefficient of the leak-proof layer of the diaper causes the impedance value of the metal antenna to change, thereby changing the wavelength of the electromagnetic wave signal transmitted by the wireless radio frequency Tag, and the signal reader can transmit a detection electromagnetic wave to the wireless radio frequency Tag, and the wireless radio frequency Tag transmits a response electromagnetic wave after receiving the detection electromagnetic wave, so that the signal reader can transmit a response electromagnetic wave according to the wavelength of the response electromagnetic wave, judging whether the diaper body is wet through.

In the aforesaid conventional technology CN103845156, an induction line is preset in the diaper to connect with a radio frequency identification tag, wherein the radio frequency identification tag is designed to be mobile, and is installed in a predetermined position of the diaper and electrically connected to the induction line when in use, so that the sensing line forms a short circuit after the diaper absorbs urine or moisture, and the radio frequency reader is used for reading the radio frequency identification tag to detect the change of resistance between the sensing lines and sending out a notification signal. In another known technology I533857, when the diaper body is in a wet state, the impedance value of the metal antenna is changed due to the change of the dielectric coefficient of the waterproof layer of the diaper, and the wavelength of the electromagnetic wave signal transmitted by the radio frequency tag is further changed, which is different from the known technology CN103845156, but the radio frequency of the radio frequency tag currently used by the folk belongs to the uhf band, the high frequency radio wave has a small wavelength and is not easy to pass through water molecules, so that when the normal uhf tag is attached to a background substance containing water, the tag antenna and the water form a large absorber, and therefore the antenna cannot effectively receive the electromagnetic wave, and the transmission distance becomes very short. Therefore, in the aforementioned prior art I533857, when the diaper body is in a wet-through state, the reading distance of the metal antenna is shortened from a long distance due to the change of the dielectric coefficient of the waterproof layer of the diaper itself and the influence of the water absorbing the ultra-high frequency band electromagnetic wave, and when the diaper is in a wet-through state, the reader sends an alarm by the change of the distance of the radio frequency tag from the long distance to the short distance. As mentioned above, when the diaper is saturated with water, the water absorbs the electromagnetic wave, but the distance decreases, so that the signal disappears, and it is impossible to determine whether the interruption is caused by the water absorption or caused by other factors; since the reader is always operated to receive signal processing, there is a problem that the reading performance is affected by the rapid overheating of the reader chip.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a wireless induction type diaper and a monitoring device thereof, which can send out notification information to indicate that the diaper is wet through the function of reading a radio signal of the monitoring device after the diaper is wet or absorbs moisture.

In order to solve the foregoing technical problem, an embodiment of the wireless inductive diaper provided by the present invention comprises: a diaper and a frequency shifted radio frequency identification tag, wherein the diaper has an absorbent layer for absorbing urine, the frequency shifted radio frequency identification tag comprising: the antenna comprises a main antenna and an extension antenna, the reading frequency band of the antenna deviates from the reading frequency band of the monitoring equipment in a normal state (when the diaper is not wet), wherein the antenna is arranged on the surface of a water-absorbable substrate, the extension antenna and the water-absorbable substrate are in contact with an absorption layer of the diaper, the water-absorbable substrate can be wetted after the absorption layer absorbs urine or moisture, the dielectric coefficient of the substrate of the antenna is further changed, the impedance matching frequency of the extension antenna and the main antenna is changed, the reading frequency band deviates to the reading frequency band of the monitoring equipment, and the monitoring equipment sends out notification information to indicate that the diaper is wet.

The extension antenna and the main antenna are connected in parallel, the impedance matching of the extension antenna and the main antenna is designed to be that the reading frequency band of the frequency shift type radio frequency identification tag deviates from the reading frequency band of the monitoring equipment in a normal state (when a diaper is not wet), and the reading frequency band of the frequency shift type radio frequency identification tag deviates to the reading frequency band of the monitoring equipment after the base material of the extension antenna is wet. In such an operation mode, because the frequency shift type radio frequency identification tag shifts the reading frequency band at the beginning, the tag reader cannot receive the volume label signal under the normal reading distance, and the chip does not need to perform the operation of signal receiving all the time; when the diaper is wet through, the frequency of the frequency shift type radio frequency identification tag shifts back to the reading frequency band of the normal monitoring equipment, and the tag reader can effectively detect the label signal at the normal reading distance and send out a wet through signal. Therefore, the problem that the reader cannot judge whether the signal disappears due to interruption caused by water absorption or other factors because the transmission distance is reduced and the signal disappears can be effectively solved, and the problem that the reader can receive the signal processing all the time and the reading performance is affected due to rapid overheating of the reader chip can be solved.

The reading frequency range of the antenna of the frequency shift type radio frequency identification tag is the Ultra High Frequency (UHF) frequency range.

The reading frequency band of the antenna of the frequency shift type radio frequency identification tag is 820-966 MHz.

The frequency shift type radio frequency identification tag is an ultra high frequency radio frequency identification tag (UHF RFID).

The frequency shift type radio frequency identification tag is a passive ultra high frequency radio frequency identification tag (UHF RFID).

Wherein the diaper comprises: the antenna comprises a water-permeable inner liner layer, a water-impermeable waterproof layer and the absorption layer, wherein the absorption layer, the extension antenna and the base material are arranged between the inner liner layer and the waterproof layer.

Wherein the extension antenna and the substrate are arranged at the position where the diaper is easy to wet, and the main antenna and the chip are arranged at the position where the diaper is not easy to wet; preferably at a location on the diaper near the waist line.

Wherein the extended antenna is formed from a conductive ink printed on a surface of the substrate.

Wherein the extension antenna is made of metal material.

The extension antenna and the substrate are arranged between the absorption layer and the waterproof layer or between the absorption layer and the lining layer.

One aspect of the present invention includes a wireless inductive diaper and a monitoring apparatus thereof, comprising: wireless induction type diaper and a supervisory equipment, wherein supervisory equipment contains: the reader reads a radio signal of a frequency shift type radio frequency identification tag of the wireless induction type diaper through the reading antenna, the reader sends an electric signal to the notification module after reading the radio signal of the frequency shift type radio frequency identification tag, and the notification module sends notification information to indicate that the diaper is wet.

The monitoring equipment is provided with any one or all of a loudspeaker and a light-emitting assembly, the loudspeaker and the light-emitting assembly are electrically connected with a notification module, and the notification module sends notification information in a sound or light-emitting mode to notify a user that a diaper is wet through any one or all of the loudspeaker and the light-emitting assembly.

Further, wherein the monitoring device comprises: the wireless communication module is electrically connected with the notification module, the reader sends an electric signal to the notification module after reading the radio signal of the frequency shift type radio frequency identification tag, and the notification module sends notification information to indicate that the diaper is wet through the wireless communication module.

Wherein wireless communication module includes: any one of a Bluetooth communication module and a WiFi communication module.

Further, wherein the monitoring device comprises: and the camera can be in communication connection with the notification module, and the notification module starts the camera to shoot images after the diaper is wet.

The camera is a network camera, and can transmit the shot images to an image playing device which is in communication connection with the monitoring equipment through a network for users to watch.

The camera is connected with the notification module of the monitoring device in a communication way through wired signal transmission.

The camera is in communication connection with the notification module through the wireless communication module of the monitoring device by wireless signal transmission.

Other features and embodiments of the present invention will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a construction view of one embodiment of a wireless inductive diaper of the present invention;

FIG. 2 is a block diagram of a frequency-shifting RFID tag for a wirelessly inductive diaper of the present invention;

FIG. 3 is a graph of frequency-shift RFID tags in frequency bands and impedance matching for a wireless inductive diaper of the present invention, showing the offset of the frequency-shift RFID tags in different read frequency bands;

FIG. 4 is a cross-sectional view of the construction of FIG. 1 at position A-A;

FIG. 5 is a schematic diagram of another embodiment of the configuration of FIG. 4;

FIG. 6 is a functional block diagram of one embodiment of a wireless inductive diaper and monitoring apparatus thereof in accordance with the present invention;

FIG. 7 is a functional block diagram of another embodiment of a wireless inductive diaper and its monitoring device in accordance with the present invention;

FIG. 8 is a flow chart of the operation of the wireless inductive diaper and its monitoring device of the present invention;

FIG. 9 is experimental data for an embodiment of a wirelessly inductive diaper of the present invention showing the read distance of a frequency-shifted RFID tag under varying humidity conditions of the diaper from dry to dry.

Description of the symbols

10 diaper 11 liner layer

12 waterproof layer and 13 absorption layer

20 frequency shift type radio frequency identification label (frequency shift type RFID)

21 chip 22 antenna

221 main antenna 222 extended antenna

23 substrate 30 monitoring device

31 reader 32 reading antenna

33 notification module 34 horn

35 light emitting component 36 wireless communication module

40D electronic device of camera

L1 normal state time shift type RFID reading frequency band

L2 read band when frequency shift type RFID only has main antenna

Read band of frequency-shifted RFID after L3 diaper is wet

R monitoring equipment's reading frequency channel

Detailed Description

Referring first to fig. 1 and 2, a diagram of an embodiment of a wireless inductive diaper and a frequency-shift rfid tag thereof according to the present invention is shown. One example configuration of a wireless inductive diaper of the present invention comprises: a diaper 10 and a frequency-shifted radio frequency identification tag 20 (hereinafter referred to simply as frequency-shifted RFID 20).

Wherein the diaper 10 comprises: the waterproof layer comprises a water-permeable lining layer 11, a waterproof layer 12 and an absorption layer 13, wherein the absorption layer 13 is arranged between the lining layer 11 and the waterproof layer 12 and used for absorbing urine or moisture.

The frequency-shift RFID20 includes: a chip 21 and an antenna 22 electrically connected to the chip 21, wherein the antenna 22 includes a main antenna 221 and an extension antenna 222, and the reading frequency band of the antenna 22 deviates from the reading frequency band of the monitoring device (see fig. 6) in a normal state (when the diaper 10 is not wet). The reading frequency band of the monitoring device is an Ultra High Frequency (UHF) frequency range (860 to 960MHz), which varies according to local and national regulations, for example, the reading frequency band of taiwan is 820 to 966 MHz. Preferably, the frequency-shifted RFID20 is a passive ultra high frequency radio frequency identification tag (uhf RFID).

An embodiment of the antenna 22, in which the main antenna 221 and the extension antenna 222 are disposed on the surface of a water-absorbable substrate 23, in the preferred embodiment of the present invention, the material of the substrate 23 may be any one of paper, cloth, and porous substrates such as plastic, fiber, and wood pulp (sheet); wherein one embodiment of the extension antenna 222 is formed from a conductive ink printed on the surface of the substrate 23, the material of the conductive ink including, but not limited to, any one of conductive inks containing conductive carbon, nano-silver, and nano-copper. The extension antenna 222 and the water-absorbent substrate 23 are in contact with the absorption layer 13 of the diaper 10, and the water-absorbent substrate 23 can be wetted after the absorption layer 13 absorbs urine or moisture, so as to change the dielectric coefficient of the substrate 23 of the antenna 22 and shift the reading frequency band of the antenna 22 to the reading frequency band of the monitoring device.

As shown in fig. 2, according to the antenna design principle of the present invention, in a normal state (when the diaper 10 is not wet), the reading frequency band of the frequency shift type RFID20 (see the dashed line segment L1 in fig. 3) deviates from the reading frequency band R of the monitoring device, in one embodiment of the present invention, the extension antenna 222 having a frequency shift function is connected in parallel to the main antenna 221 of the uhf RFID tag, thereby forming a frequency shift type RFID20, wherein the extension antenna 222 and the main antenna 221 are electrically connected in a parallel connection relationship to the chip 21. The impedance matching of the extension antenna 222 and the main antenna 221 of the frequency-shifted RFID20 is designed to be weak at normal times (when the diaper 10 is unwetted) and short at the read band of the monitoring device, which in one embodiment of the invention is about 50 centimeters (cm).

Preferably, when the antenna 22 of the frequency shift RFID20 only has the main antenna 221, the reading frequency band of the RFID tag (see the central line L2 in fig. 3) including the main antenna 221 and the chip 21 may completely fall into the reading frequency band R of the monitoring device.

By changing the dielectric coefficient of the substrate 23 after the substrate 23 absorbs urine or moisture and the characteristic that water absorbs electric waves, the antenna 22 of the frequency shift RFID20 in the present invention generates a frequency offset effect due to the wetting of the substrate 23 of the extension antenna 222, which causes the reading frequency band of the frequency shift RFID20 to shift to the reading frequency band R of the monitoring device (see the solid line segment L3 in fig. 3), at this time, the readable distance of the frequency shift RFID20 becomes longer, in an embodiment of the present invention, the reading distance is about 3 meters (M), and after the monitoring device reads the radio signal of the frequency shift RFID20, the monitoring device sends a notification message indicating that the diaper is wetted.

In addition to the above-described printed antenna, in other embodiments of the antenna 22, in which the main antenna 221 and the extension antenna 222 of the antenna 22 are also metal antennas made of metal materials (e.g., copper and aluminum), a typical manner is a metal antenna made by any one of etching (etching) and plating (plating). The substrate of the antenna 22 may be a plastic substrate in this case. In a better state, the metal antenna can be prepared on the separable plastic substrate, and then the metal antenna is further transferred from the separable plastic substrate to the water-absorbent substrate 23. In addition, the external shape of the antenna 22 is not limited to that shown in fig. 2, and the different-shape extension antenna 222 with the frequency shift function can be electrically connected to the different-shape main antenna 221.

Wherein the extension antenna 222 and the substrate 23 are disposed at a position (a main absorption position of the diaper) where the diaper 10 is easy to wet, and the main antenna 221 and the chip 21 are disposed at a position (such as a side position of the diaper) where the diaper 10 is less easy to wet; preferably near the waist line of the diaper 10 (which may be in front of or behind the abdomen). Referring to fig. 4, the extension antenna 222 and the substrate 23 are disposed between the absorbing layer 13 and the waterproof layer 12, in other words, the extension antenna 222 is disposed below the absorbing layer 13; referring to fig. 5, in another embodiment of the present invention, the extension antenna 222 and the substrate 23 are disposed between the absorption layer 13 and the liner layer 11, in other words, the extension antenna 222 is disposed above the absorption layer 13.

Referring to fig. 6, one aspect of the present invention includes a wireless inductive diaper and a monitoring apparatus thereof, including: a wireless inductive diaper and a monitoring device 30, wherein the monitoring device 30 comprises: a reader 31, a reading antenna 32 electrically connected to the reader 31, and a notification module 33 electrically connected to the reader 31, wherein the reader 31 is a radio frequency identification tag reader (RFID reader), the reader 31 reads the radio signal of the frequency shift RFID20 of the wirelessly inductive diaper through the reading antenna 32, the reader 31 sends an electrical signal to the notification module 33 after reading the radio signal of the frequency shift RFID20, and the notification module 33 sends notification information indicating that the diaper is wet.

In one embodiment, the reader 31 sends out radio signals at preset time intervals to read the radio signals of the frequency shift type RFID20, and in the diaper 10 or dry state, the reading frequency band of the frequency shift type RFID20 is deviated from the reading frequency band R of the reader 31, so that the reader 31 cannot read the radio signals of the frequency shift type RFID 20; on the contrary, after the diaper 10 is wet, the reading frequency band of the frequency shift type RFID20 is shifted to the reading frequency band R of the reader 31, at this time, the reader 31 can read the radio signal of the frequency shift type RFID20, the reader 31 sends an electric signal to the notification module 33 after reading the radio signal of the frequency shift type RFID20, and the notification module 33 sends notification information to indicate that the diaper is wet.

In one embodiment of the present invention, the monitoring device 30 is provided with any one or all of a speaker 34 and a light emitting component 35, the light emitting component 35 includes any one of a bulb or a light emitting diode, the speaker 34 and the light emitting component 35 are electrically connected to the notification module 33, and the notification module 33 sends out a notification message in a sound or light manner through any one or all of the speaker 34 and the light emitting component 35 to notify the user that the diaper is wet.

Further, as shown in fig. 7, the monitoring device 30 includes: a wireless communication module 36 is electrically connected to the notification module 33. Embodiments of the wireless communication module 36 include: any one of a Bluetooth communication module and a WiFi communication module; the reader 31 sends an electrical signal to the notification module 33 after reading the radio signal of the frequency shift RFID20, the notification module 33 sends a notification message indicating that the diaper is wet through the wireless communication module 36, for example, the notification message can be communicatively connected to the electronic device D of the user through the wireless communication module 36, and then the notification message is sent to the electronic device D of the user or run in an application program (APP) of the electronic device D, where the electronic device D includes but is not limited to: a smart mobile phone, any one of a personal computer, a tablet computer and a notebook computer.

Further, the monitoring device 30 includes: a camera 40, the camera 40 can be connected to the notification module 33 in communication, and the notification module 33 can activate the camera 40 to take images after the diaper is wet. Preferably, the camera 40 is a network camera, and can transmit the captured image to an image playing device in communication with the monitoring device 30 via a network for the user to watch; such as, but not limited to, any one of a smart mobile phone, a personal computer, a tablet computer, and a notebook computer.

An embodiment is shown in fig. 6, wherein the camera 40 is communicatively connected to the notification module 33 of the monitoring device 30 via a wired signal transmission. In another embodiment shown in fig. 7, the camera 40 is in communication connection with the notification module 33 via the wireless communication module 36 of the monitoring device 30 by wireless signal transmission.

Please refer to fig. 8, which is a flowchart illustrating an operation of an embodiment of the wireless inductive diaper and the monitoring apparatus thereof according to the present invention. Comprising the following steps.

a. Starting the monitoring device 30;

b. the reader 31 sends out radio signals at preset intervals to read the radio signals of the frequency-shift type RFID 20;

c. the reader 31 sends an electric signal to the notification module 33 after reading the radio signal of the frequency-shift RFID20, and then proceeds to the next step; otherwise, if the radio signal of the frequency shift type RFID20 is not read yet, returning to the step (b); and

d. the notification module 33 directly uses the speaker 34 or the light emitting device 35 to send a notification message, or the notification module 33 sends a notification message through the wireless communication module 36 to indicate that the diaper is wet.

In another embodiment of the present invention, an operation flow substantially includes the operation flows of the above-described steps (a) to (d), wherein the step (d) further includes: the notification module 33 starts the camera 40 to shoot the image, and transmits the shot image to the image playing device that establishes a communication connection with the monitoring device 30 through the network for the user to watch.

Referring to fig. 9, experimental data for an embodiment of the wireless inductive diaper of the present invention shows the read distance of the frequency-shifted RFID20 under dry to varying humidity conditions of the diaper 10. When the unit area (square centimeter) of the substrate 23 of the extended antenna 222 of the frequency shift RFID20 contains 1 milligram (mg) of water, the reading distance is immediately changed from 0.5 meter to 3 meters; when the water content per unit area of the substrate 23 is increased to an amount of 2.6 milligrams (mg), the reading distance is as far as 4 meters; as the water content continues to increase, the reading distance begins to decrease, eventually reaching an equilibrium of 2 meters, as the water absorbs electromagnetic waves to a greater extent than it has an effect on the offset frequency. These changes are sufficient for applications in which it is sensed whether the diaper 10 is wet.

After the substrate 23 absorbs urine or moisture, the dielectric coefficient of the substrate 23 is changed, and the water absorbs electric waves, so that the antenna 22 of the frequency shift RFID20 of the present invention generates a frequency offset effect, and after the substrate 23 of the extension antenna 222 becomes wet, the read frequency band of the frequency shift RFID20 is shifted to the read frequency band R of the monitoring device 30 (see the solid line segment L3 in fig. 3), at this time, the readable distance of the frequency shift RFID20 is lengthened, and in an embodiment of the present invention, the read distance is about 3 meters (M).

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the present technology, and are not intended to limit the implementations of the present technology in any way, and those skilled in the art may make modifications or changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the present disclosure, but should be construed as the technology or implementations substantially the same as the present technology.

Claims

1. A wireless inductive diaper, wherein a monitoring device can read a radio signal emitted from the wireless inductive diaper after the wireless inductive diaper is wetted, the wireless inductive diaper comprising:

the diaper comprises a water-permeable inner liner layer, a water-impermeable waterproof layer and an absorption layer, wherein the absorption layer is arranged between the inner liner layer and the waterproof layer and is used for absorbing urine or moisture; the frequency shift type radio frequency identification tag is a passive type ultrahigh frequency radio frequency identification tag, and comprises: the antenna comprises a main antenna and an extension antenna, the extension antenna is arranged on the surface of a substrate capable of absorbing water, the extension antenna and the substrate are in contact with the absorption layer of the diaper, the extension antenna and the substrate are arranged at the position of the diaper, which is easy to wet, the main antenna and the chip are arranged at the position of the diaper, which is not easy to wet, when the diaper is not wet in a normal state, the reading frequency band of the antenna comprising the main antenna and the extension antenna deviates from the reading frequency band of the monitoring equipment, the substrate can be wetted after the absorption layer absorbs urine or moisture, the dielectric coefficient of the substrate is further changed, and the reading frequency band of the antenna comprising the main antenna and the extension antenna deviates to the reading frequency band of the monitoring equipment.

2. The wireless inductive diaper of claim 1, wherein the material of the substrate is any one of paper, cloth, fiber, or wood pulp.

3. The wireless inductive diaper according to claim 1, characterized in that the reading frequency band of the monitoring device is 820 to 966 MHz.

4. The wireless inductive diaper of claim 1, wherein the extended antenna is formed from conductive ink printed on the surface of the substrate.

5. The wireless inductive diaper of claim 1, wherein the extension antenna and the substrate are between the absorbent layer and the waterproof layer or between the absorbent layer and the inner liner layer.

6. A wireless inductive diaper and monitoring device therefor, comprising:

a wireless inductive diaper, comprising: the diaper comprises a water-permeable inner liner layer, a water-impermeable waterproof layer and an absorption layer, wherein the absorption layer is arranged between the inner liner layer and the waterproof layer and is used for absorbing urine or moisture; the frequency shift type radio frequency identification tag is a passive type ultrahigh frequency radio frequency identification tag, and comprises: a chip and an antenna electrically connected to the chip, the antenna including a main antenna and an extension antenna, the extension antenna being disposed on a surface of a substrate capable of absorbing water, the extension antenna and the substrate contacting the absorption layer of the diaper, the extension antenna and the substrate being disposed at a position of the diaper that is easily wetted, the main antenna and the chip being disposed at a position of the diaper that is less easily wetted, when the diaper is not wetted in a normal state, a reading frequency band of the antenna including the main antenna and the extension antenna deviates from a reading frequency band of the monitoring device, the substrate being capable of being wetted after the absorption layer absorbs urine or moisture, thereby changing a dielectric coefficient of the substrate, and shifting the reading frequency band of the antenna including the main antenna and the extension antenna to the reading frequency band of the monitoring device;

a monitoring device comprising: the reader reads the radio signal of the frequency shift type radio frequency identification tag through the reading antenna, the reader sends an electric signal to the notification module after reading the radio signal of the frequency shift type radio frequency identification tag, and the notification module sends notification information to indicate that the diaper is wet.

7. The wireless inductive diaper and monitoring device thereof according to claim 6, wherein the material of the substrate is any one of paper, cloth, fiber, or wood pulp.

8. The wireless inductive diaper and the monitoring device thereof according to claim 6, wherein the reading frequency band of the monitoring device is 820-966 MHz.

9. The wireless inductive diaper and monitoring device thereof according to claim 6, wherein the extension antenna is formed by conductive ink printed on the surface of the substrate.

10. The wireless inductive diaper and monitoring device thereof according to claim 6, wherein the extension antenna and the substrate are between the absorption layer and the waterproof layer or between the absorption layer and the lining layer.

11. The wireless inductive diaper and the monitoring device thereof as claimed in claim 6, wherein the monitoring device is provided with any one or all of a speaker and a light emitting component, the speaker and the light emitting component are electrically connected with the notification module, and the notification module emits the notification information in a sound or light manner through any one or all of the speaker and the light emitting component.

12. The wireless inductive diaper and monitoring device thereof according to claim 6, wherein the monitoring device comprises: the wireless communication module is electrically connected with the notification module, the reader sends an electric signal to the notification module after reading the radio signal of the frequency shift type radio frequency identification tag, and the notification module sends the notification information through the wireless communication module.

13. The wireless inductive diaper and monitoring device thereof as claimed in claim 12, wherein the wireless communication module comprises: any one of a Bluetooth communication module and a WiFi communication module.

14. The wireless inductive diaper and monitoring device thereof according to claim 6 or 12, wherein the monitoring device comprises: a camera in communication with the notification module, the notification module activating the camera to capture an image after the diaper is wetted.

15. The apparatus of claim 14, wherein the camera is a web camera and the camera is communicatively coupled to the notification module via wired or wireless signal transmission.