CN116124840A - Electronic moisture absorption system and moisture absorption sensing method thereof - Google Patents
Electronic moisture absorption system and moisture absorption sensing method thereof Download PDFInfo
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- CN116124840A CN116124840A CN202210144635.3A CN202210144635A CN116124840A CN 116124840 A CN116124840 A CN 116124840A CN 202210144635 A CN202210144635 A CN 202210144635A CN 116124840 A CN116124840 A CN 116124840A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 51
- 230000002745 absorbent Effects 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims description 27
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- -1 silver ions Chemical class 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 210000002700 urine Anatomy 0.000 description 3
- 206010021639 Incontinence Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
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Abstract
An electronic moisture absorption system and a moisture absorption sensing method thereof. The electronic absorbent system includes an absorbent article and an electronic sensing device. The absorbent article includes a water-absorbent layer, a water-barrier layer, and a sensing electrode. The waterproof layer is arranged on the water absorption layer. The sensing electrode is formed on the waterproof layer and comprises a first electrode part and a second electrode part. The first electrode part and the second electrode part are arranged at intervals. After the electronic sensing device is contacted with the sensing electrode, an electric signal is output. The electronic sensing device generates impedance data of the water absorption layer according to voltage variation of the electric signal passing through the first electrode portion and the second electrode portion and generates humidity data according to the impedance data.
Description
Technical Field
The present invention relates to an electronic absorbent system and an absorbent sensing method thereof, and more particularly, to an electronic absorbent system and an absorbent sensing method thereof capable of measuring the absorbent capacity of an absorbent article.
Background
Incontinence care products, such as diapers, are used quite frequently in a hospital or care home. In order to ensure the health of the resident or the patient, the paper diaper needs to be replaced at regular time. However, if the replacement is too frequent, the cost of the incontinence product will be quite high and it will be difficult to load.
In order to confirm whether the diaper needs to be replaced, there are several methods other than manual confirmation. As shown in fig. 11, in the conventional measurement method, the capacitance of the diaper 91 is measured by an electrode 93 disposed on the waterproof layer 92 of the diaper 91 by a measurement device. However, this measurement method has a lot of inconveniences.
For example, the capacitance of the diaper is very small, and the coverage area of the electrode 93 is narrow. Therefore, how to measure accurately is a very difficult task. For example, how to set the measurement time of a design circuit is a very difficult task. If the measurement time is too long, the measurement result will be inaccurate. More importantly, since the capacitance value of the diaper is changed along with the change of the water absorption, how to accurately design the measurement time length is a very difficult problem. Therefore, there is a need for an electronic moisture absorption system and a moisture absorption sensing method thereof to improve the above-mentioned conventional problems.
Disclosure of Invention
The application provides an electronic moisture absorption system and a moisture absorption sensing method thereof. The electronic absorbent system and the absorbent sensing method thereof calculate the absorbent capacity of the absorbent article in a manner of measuring the impedance of the absorbent article, and can be combined with the internet of things (Internet of Things, ioT) and Big Data (Big Data) analysis, thereby saving the care manpower.
In view of the foregoing, the present application provides an electronic absorbent system comprising an absorbent article and an electronic sensing device. The absorbent article includes a water-absorbent layer, a water-barrier layer, and a sensing electrode. The waterproof layer is arranged on the water absorption layer. The sensing electrode is formed on the waterproof layer and comprises a first electrode part and a second electrode part. The first electrode part and the second electrode part are arranged at intervals. After the electronic sensing device is contacted with the sensing electrode, an electric signal is output. The electronic sensing device generates impedance data of the water absorption layer according to voltage variation of the electric signal passing through the first electrode portion and the second electrode portion and generates humidity data according to the impedance data.
In an embodiment of the present application, the first electrode portion includes a first main electrode and a plurality of first branch electrodes, the second electrode portion includes a second main electrode and a plurality of second branch electrodes, the first main electrode and the second main electrode are spaced apart from each other in parallel, the plurality of first branch electrodes extend from one side of the first main electrode to the second main electrode, the plurality of second branch electrodes extend from one side of the second main electrode to the first main electrode, and each of the plurality of first branch electrodes and each of the plurality of second branch electrodes are spaced apart from each other.
In an embodiment of the present application, the plurality of first branch electrodes are perpendicular to the first main electrode, and the plurality of second branch electrodes are perpendicular to the second main electrode.
In an embodiment of the present application, the electronic sensing device may include an operation circuit and a peak detection circuit. The signal output end of the operation circuit is electrically connected with the water absorption layer and the voltage receiving end of the peak detection circuit. The voltage output end of the peak detection circuit is electrically connected to the signal input end of the operation circuit. The arithmetic circuit outputs an electric signal. The peak detection circuit detects a peak voltage of the electrical signal. The operation circuit generates impedance data of the water absorption layer according to the peak voltage operation and generates humidity data according to the impedance data.
In an embodiment of the present application, the operation circuit further includes a microprocessor, a first resistor, and the electronic moisture absorption system further includes a first amplifier and a second amplifier. The first end of the first resistor is electrically connected with the microprocessor, and the second end of the first resistor is electrically connected with the water absorption layer through the sensing electrode. The microprocessor outputs and receives the electric signals, and the microprocessor generates impedance data according to the first voltage value of the first end and the second voltage value of the second end. The first positive input terminal of the first amplifier is electrically connected to the second terminal of the first resistor. The first output terminal of the first amplifier is electrically connected to the peak detection circuit and the first negative input terminal of the first amplifier. The second positive input terminal of the second amplifier is electrically connected to the peak detection circuit. The second output end of the second amplifier is electrically connected with the second negative input end of the second amplifier and the microprocessor.
In one embodiment of the present application, the electronic moisture absorption system further includes a first amplifier, a peak detection circuit, and a second amplifier. The first positive electrode input end of the first amplifier is electrically connected with the second end of the first resistor, the first output end of the first amplifier is electrically connected with the peak value detection circuit and the first negative electrode input end of the first amplifier, the second positive electrode input end of the second amplifier is electrically connected with the peak value detection circuit, and the second output end of the second amplifier is electrically connected with the second negative electrode input end of the second amplifier and the microprocessor.
In an embodiment of the present application, the peak detection circuit includes a third amplifier, a diode, a capacitor and a second resistor, wherein a third positive input terminal of the third amplifier is electrically connected to the first output terminal, a third output terminal of the third amplifier is electrically connected to one terminal of the diode, a third negative input terminal of the third amplifier is electrically connected to the other terminal of the diode, the second positive input terminal, one terminal of the capacitor and one terminal of the second resistor, the capacitor and the second resistor are connected in parallel, and the other terminal of the capacitor and the other terminal of the second resistor are grounded.
In an embodiment of the present application, the electrical signal is a square wave electrical signal, the sensing electrode includes conductive ink and silver ions, and the area ratio of the sensing electrode to the waterproof layer is greater than 0.3.
In an embodiment of the present application, the electronic sensing device includes a communication unit, and the communication unit transmits the humidity data to the master control device.
In view of the above, the present application further provides a moisture absorption sensing method of an electronic moisture absorption system, which includes the following steps:
the electronic sensing device is contacted with the sensing electrode of the absorbent article.
The electronic sensing device outputs an electric signal.
An electronic sensing device is used to sense the voltage variation of the electric signal according to the electric signal passing through the sensing electrode, and calculate and generate the impedance data of the water-absorbing layer of the absorbent article.
The electronic sensing device generates humidity data according to the impedance data.
Further, the absorbent article includes a water-absorbing layer, a water-proof layer disposed on the water-absorbing layer, and a sensing electrode formed on the water-proof layer.
In an embodiment of the present application, the sensing electrode includes a first electrode portion and a second electrode portion, and the first electrode portion and the second electrode portion are disposed at intervals. The electronic sensing device comprises a microprocessor, a first resistor, a first amplifier, a second amplifier, a third amplifier, a diode, a capacitor and a second resistor. The first end of the first resistor is electrically connected with the microprocessor, the second end of the first resistor is electrically connected with the water absorption layer through the sensing electrode, the microprocessor outputs and receives electric signals, and the microprocessor generates impedance data according to the first voltage value of the first end and the second voltage value of the second end. The first positive electrode input end of the first amplifier is electrically connected with the second end of the first resistor, the second positive electrode input end of the second amplifier is electrically connected with the peak detection circuit, the second output end of the second amplifier is electrically connected with the second negative electrode input end of the second amplifier and the microprocessor, the third positive electrode input end of the third amplifier is electrically connected with the first output end of the first amplifier, the third output end of the third amplifier is electrically connected with one end of the diode, and the third negative electrode input end of the third amplifier is electrically connected with the other end of the diode, the second positive electrode input end of the second amplifier, one end of the capacitor and one end of the second resistor. The capacitor and the second resistor are connected in parallel, and the other end of the capacitor and the other end of the second resistor are grounded.
Drawings
Figure 1 is a first schematic view of an absorbent article according to an embodiment of the present application.
Figure 2 is a second schematic view of an absorbent article according to an embodiment of the present application.
Figure 3 is a third schematic view of an absorbent article according to an embodiment of the present application.
Fig. 4 is a first schematic view of an electronic moisture absorption system according to an embodiment of the present application.
Fig. 5 is a second schematic view of an electronic moisture absorption system according to an embodiment of the present application.
Fig. 6 is a third schematic view of an electronic moisture absorption system according to an embodiment of the present application.
FIG. 7 is a first schematic view of a sense electrode according to an embodiment of the present application.
FIG. 8 is a second schematic view of a sense electrode according to an embodiment of the present application.
FIG. 9 is a circuit schematic diagram of an electronic sensing device according to an embodiment of the present application.
FIG. 10 is a circuit schematic diagram of an electronic sensing device according to an embodiment of the present application.
Fig. 11 is a schematic diagram of an electronic diaper according to the prior art.
Detailed Description
For the purpose of understanding the technical features, aspects and advantages of the present application and the advantages achieved thereby, the present application will now be described in detail with reference to the drawings and in the form of examples, wherein the drawings are used for illustration and description only and are not necessarily true proportions or exact arrangements, so that the proportion and arrangement of the accompanying drawings should not be construed as limiting the scope of the present application in practical practice, and are incorporated herein by reference.
Embodiments of the power tool and its safety control circuit module according to the present application will be described below with reference to the drawings, in which like elements are denoted by like reference numerals for ease of understanding.
Referring now to fig. 1-6, there are shown first through third illustrations of an absorbent article, and first through third illustrations of an electronic absorbent system, respectively, according to embodiments of the present application.
The electronic absorbent system of the present application comprises absorbent articles 11 and electronic sensing means 12. Further, as shown in fig. 1 and 2, the absorbent article 11 may be a diaper or a nursing pad.
Further, as shown in FIG. 3, the absorbent article 11 may include a water-absorbent layer 111, a water-impermeable layer 112, and a sensing electrode 113. The water-absorbent layer 111 may include a nonwoven fabric, an absorber, or the like to absorb liquids such as urine. The waterproof layer 112 may be made of soft waterproof material, such as plastic, rubber, etc. The waterproof layer 112 may be disposed on the water absorbent layer 111. The sensing electrode 113 may be formed on the waterproof layer 112.
In one embodiment, the sensing electrode 113 may include conductive ink and be formed on the waterproof layer 112 by spraying, in other words, the conductive ink may penetrate into the waterproof layer 112 to contact with the water absorbing layer 111.
In another embodiment, the sensing electrode 113 may further include silver ions in addition to the conductive ink. Therefore, the sensing electrode 113 of the present application also has a sterilizing or antibacterial effect, which can reduce the chance of bacterial infection.
In one embodiment, the ratio of the area of the sensing electrode 113 to the area of the waterproof layer 112 is greater than 0.3. In a preferred embodiment, the ratio of the area of the sensing electrode 113 to the area of the waterproof layer 112 is greater than 0.66, so that the electrical change of the water-absorbent layer 111 is easily detected when the absorbent article 11 is wet with urine due to the sufficient area of the sensing electrode 113 on the waterproof layer 112.
In one embodiment, as shown in fig. 4 to 6, when it is desired to detect the humidity of the absorbent article 11, the electronic sensing device 12 may be contacted with the sensing electrode 113. The electronic sensing device 12 can output an electrical signal, and calculate and generate impedance data of the water-absorbing layer 111 according to the voltage variation of the electrical signal passing through the first electrode portion 1131 and the second electrode portion 1132, and generate humidity data according to the impedance data.
In an embodiment, as shown in fig. 4 and 5, the electronic sensing device 12 may have the sensing electrode 113 in contact with the first sensing electrode 131 and the second sensing electrode 132, and the electronic sensing device 12 may include a clamping portion 133, so that the electronic sensing device 12 may be fixed on the absorbent article 11.
In one embodiment, as shown in FIG. 6, the electronic sensing device 12 may include a communication unit 130. The communication unit 130 may be a bluetooth communication unit 130 or a wireless network (wireless fidelity, wi-Fi) communication unit 130, and when the electronic sensing device 12 calculates to generate the impedance data of the water-absorbing layer 111 and generates the humidity data according to the impedance data, the communication unit 130 may wirelessly transmit the humidity data to the main control device 13, but is not limited thereto.
For example, in other embodiments, after the electronic sensing device 12 calculates the humidity data, the electronic sensing device 12 may be connected to the main control device 13 by wire to send the humidity data to the main control device 13.
In one embodiment, the master device 13 may be a computer, a workstation, a cloud computing device, or the like, which may receive the humidity data of the plurality of electronic sensing devices 12. In a preferred embodiment, the master device 13 may be an operation device with a thinsbard internet of things platform, and the master device 13 may collect and visualize data of the internet of things device. Therefore, for example, in a hospital or a nursing home, the main control device 13 and the electronic sensing device 12 can be used to determine whether the patient or the resident needs to replace the diaper, so as to reduce the possible mistakes of human management, and the data can be analyzed and processed to analyze the physical condition of each patient or resident.
In an embodiment, as shown in fig. 7 and 8, the sensing electrode 113 includes a first electrode portion 1131 and a second electrode portion 1132, and the first electrode portion 1131 and the second electrode portion 1132 are disposed at intervals. The first electrode portion 1131 may include a first main electrode 11311 and a plurality of first branch electrodes 11312. The second electrode portion 1132 may include a second main electrode 11321 and a plurality of second branch electrodes 11322. The first main electrode 11311 and the second main electrode 11321 are spaced apart from each other in parallel. A plurality of first branch electrodes 11312 extend from one side of the first main electrode 11311 toward the second main electrode 11321. The plurality of second branch electrodes 11322 extend from one of the second main electrodes 11321 to the first main electrode 11311, and each of the plurality of first branch electrodes 11312 and each of the plurality of second branch electrodes 11322 are disposed at intervals.
In addition, in an embodiment, the plurality of first branch electrodes 11312 are perpendicular to the first main electrode 11311, and the plurality of second branch electrodes 11322 are perpendicular to the second main electrode 11321.
That is, by the arrangement of the first electrode portion 1131 and the second electrode portion 1132, the sensing electrode 113 of the present application can sense whether the absorbent article 11 is wet or not, for example, wet by urine. However, the present application is not limited thereto, and the sensing electrode 113 may have different shapes or patterns, in other words, even though the configuration, geometry, shape, size, etc. of the sensing electrode 113 are different, the sensing electrode is within the scope of the present invention as long as the sensing electrode is similar to the present application and has sensing impedance variation.
In this application, the sensing electrode 113 can be regarded as a wire for measuring impedance, and the moisture absorbed by the water absorbing layer 111 between the first electrode portion 1131 and the second electrode portion 1132 changes the impedance value in the space between the first electrode portion 1131 and the second electrode portion 1132.
Therefore, in another embodiment, the pitches of the first branch electrodes 11312 and the second branch electrodes 11322 may be arranged in different widths according to the condition requirement of the humidity to be measured. In addition, the actual geometry of the sensing electrode 113 can be preferably configured according to the spatial characteristics and shape characteristics of the environment to be measured, such as calculating the characteristic length.
As shown in FIG. 9, in one embodiment, the electronic sensing device 12 may include an arithmetic circuit 120 and a peak detection circuit 124. The signal output end of the operation circuit 120 can be electrically connected to the water absorbing layer 111 and the peak detection circuit 124. The voltage output end of the peak detection circuit 124 is electrically connected to the signal input end of the operation circuit 120. The operation circuit 120 can output an electric signal, and the peak detection circuit 124 can detect the peak voltage of the electric signal. The computing circuit 120 can calculate the impedance data of the water-absorbing layer 111 according to the peak voltage, and generate the humidity data according to the impedance data to determine the humidity of the water-absorbing layer 111.
In one embodiment, as shown in fig. 10, the operation circuit 120 may include a microprocessor 121 and a first resistor 122. The first end of the first resistor 122 is electrically connected to the microprocessor 121, and a second end of the first resistor 122 is electrically connected to the water absorbing layer 111 through the sensing electrode 113. The microprocessor 121 can output and receive the electrical signal, and the microprocessor 121 can output and receive the electrical signal according to the first voltage value V of the first terminal in And a second voltage value V at the second end o The operation generates impedance data.
In one embodiment, the resistance R of the first resistor 122 is between 50KΩ and 500KΩ, such as 64.9KΩ. Resistance value Z of the water absorbing layer 111 load Depending on the degree of wetness, this may be between 20kΩ and 800kΩ, or even higher than 800kΩ. By measuring the relationship between the first voltage Vin and the second voltage Vo
Thereby obtaining the impedance Zload of the water-absorbing layer 111 according to the relationship between the first voltage Vin and the second voltage Vo.
In other words, when the resistance Z of the water absorbing layer 111 load The second voltage value V when the water absorption increases o Will change, for example, if the maximum water absorption of the water-absorbing layer 111 is 200ml, the impedance Z will be increased from 0ml to 200ml load Will increase from 20kΩ to 800kΩ.
Further illustrated, the electronic sensing device 12 may further include a first amplifier 123, a peak detection circuit 124, and a second amplifier 125. The first positive input terminal of the first amplifier 123 is electrically connected to the second terminal of the first resistor 122, and the first output terminal of the first amplifier 123 is electrically connected to the peak detection circuit 124 and the first negative input terminal of the first amplifier 123.
The second positive input of the second amplifier 125 is electrically connected to the peak detection circuit 124, and the second output of the second amplifier 125 is electrically connected to the second negative input of the second amplifier 125 and the microprocessor 121.
The peak detection circuit 124 includes a third amplifier 126, a diode 127, a capacitor 128, and a second resistor 129. The third positive input of the third amplifier 126 is electrically connected to the first output, the third output of the third amplifier 126 is electrically connected to one end of the diode 127, and the third negative input of the third amplifier 126 is electrically connected to the other end of the diode 127, the second positive input, one end of the capacitor 128, and one end of the second resistor 129. The capacitor 128 and the second resistor 129 are connected in parallel, and the other end of the capacitor 128 and the other end of the second resistor 129 are grounded.
Further, the first positive input terminal, the second positive input terminal, and the third positive input terminal are input terminals of the first amplifier 123, the second amplifier 125, and the third amplifier 126 marked with "+" signs; the first negative input, the second negative input, and the third negative input are the inputs of the first amplifier 123, the second amplifier 125, and the third amplifier 126 labeled with "-" symbols.
In one embodiment, the electrical signal may be a square wave electrical signal, the frequency of which may be adjusted. For example, the frequency of the square wave electrical signal may be adjusted by the microprocessor 121. Further, the square wave electrical signal may have a frequency between 1KHz and 100KHz. In a preferred embodiment, the frequency of the square wave signal may be between 1KHz and 50KHz, and the microprocessor 121 may control the frequency of the square wave signal according to the characteristics of the absorbent article 11, such as the target difference of the absorbent article 11, so as to perform impedance measurement at different frequencies, thereby achieving more accurate humidity identification.
In one embodiment, the portion formed by the third amplifier 126 and the diode 127 may be regarded as a super diode (super diode), and the circuit structure may be used to detect the peak voltage of the electrical signal.
In addition, the electrical signal output by the microprocessor 121 of the present application may be dc or ac. For example, if the electrical signal is a square wave electrical signal, the square wave electrical signal may be converted to an alternating current by a Band-pass filter (Band-pass filter) and various suitable circuits, and then received by the microprocessor 121.
In one embodiment, the microprocessor 121 may include a signal output terminal and an Analog-to-Digital (A/D) receiving terminal for outputting and receiving the electrical signals.
The above configurations of the microprocessor 121, the first amplifier 123, the second amplifier 125, the third amplifier 126, etc. are only examples of one circuit configuration of the electronic sensing device 12, and all embodiments are within the scope of the present application.
The application further provides a moisture absorption sensing method of the electronic moisture absorption system, which comprises the following steps:
s101: the electronic sensing means 12 are brought into contact with the sensing electrode 113 of the absorbent article 11. For example, in one embodiment, the electronic sensing device 12 is fixed on the absorbent article 11 by the clamping portion 133, so that the electronic sensing device 12 can contact the sensing electrode 113 with the first sensing electrode 131 and the second sensing electrode 132.
S102: a telecommunication is outputted by the electronic sensing device 12. For example, in one embodiment, square wave electrical signals having frequencies between 1KHz and 50KHz are output.
S103: the electronic sensing device 12 senses the voltage variation of the electric signal according to the electric signal passing through the sensing electrode 113 and calculates the impedance data of the absorbent layer 111 of the absorbent article 11.
S103: the electronic sensing device 12 generates humidity data according to the impedance data.
In one embodiment, after the humidity data is generated by the above-mentioned steps, the communication unit 130 of the electronic sensing device 12 can be used to transmit the humidity data to the main control device 13.
In summary, the electronic absorbent system and the method for sensing the moisture absorption of the electronic absorbent system calculate the moisture absorption of the absorbent article by measuring the impedance of the absorbent article, and can combine networking and big data analysis to save the care manpower. In addition, under the framework of the electronic moisture absorption system, for the moisture absorption articles with different types, such as paper diapers, nursing pads and the like with different absorption amounts, the size of the first resistor can be changed according to the impedance value of the moisture absorption articles, and the frequency of the electric signal can be changed according to the requirement, so that the optimal measurement effect can be achieved.
The foregoing is by way of example only and is not intended as limiting. Any equivalent modifications or variations to the present application without departing from the spirit and scope of the present application are intended to be included in the following claims.
Claims (10)
1. An electronic moisture absorption system comprising:
an absorbent article comprising:
a water-absorbing layer;
the waterproof layer is arranged on the water absorption layer; and
The sensing electrode is formed on the waterproof layer and comprises a first electrode part and a second electrode part, and the first electrode part and the second electrode part are arranged at intervals; and
an electronic sensing device which outputs an electric signal after contacting with the sensing electrode,
wherein the electronic sensing device generates impedance data of the water absorption layer according to voltage variation of the electric signals passing through the first electrode part and the second electrode part, and generates humidity data according to the impedance data.
2. The electronic moisture absorption system of claim 1, wherein the first electrode portion comprises a first main electrode and a plurality of first branch electrodes, the second electrode portion comprises a second main electrode and a plurality of second branch electrodes, the first main electrode and the second main electrode are spaced apart from each other in parallel, the plurality of first branch electrodes extend from one of the first main electrodes to the second main electrode, the plurality of second branch electrodes extend from one of the second main electrodes to the first main electrode, and each of the plurality of first branch electrodes and each of the plurality of second branch electrodes are spaced apart from each other.
3. The electronic moisture absorption system of claim 2, wherein the first plurality of branch electrodes are perpendicular to the first main electrode and the second plurality of branch electrodes are perpendicular to the second main electrode.
4. The electronic moisture absorption system of claim 1, wherein the electronic sensing device comprises an operation circuit and a peak detection circuit, wherein a signal output end of the operation circuit is electrically connected with the moisture absorption layer and a voltage receiving end of the peak detection circuit, a voltage output end of the peak detection circuit is electrically connected with a signal input end of the operation circuit, the operation circuit outputs the electric signal, the peak detection circuit detects a peak voltage of the electric signal, and the operation circuit generates the impedance data of the moisture absorption layer according to the peak voltage operation and generates the humidity data according to the impedance data.
5. The electronic moisture absorption system of claim 4, wherein the arithmetic circuit further comprises a microprocessor, a first resistor, and the electronic moisture absorption system further comprises a first amplifier and a second amplifier; the first end of the first resistor is electrically connected with the microprocessor, the second end of the first resistor is electrically connected with the water absorption layer through the sensing electrode, the microprocessor outputs and receives the electric signal, and the microprocessor generates the impedance data according to the first voltage value of the first end and the second voltage value of the second end; the first positive electrode input end of the first amplifier is electrically connected with the second end of the first resistor, the first output end of the first amplifier is electrically connected with the peak detection circuit and the first negative electrode input end of the first amplifier, the second positive electrode input end of the second amplifier is electrically connected with the peak detection circuit, and the second output end of the second amplifier is electrically connected with the second negative electrode input end of the second amplifier and the microprocessor.
6. The electronic moisture absorption system of claim 5, wherein the peak detection circuit comprises a third amplifier, a diode, a capacitor and a second resistor, wherein a third positive input terminal of the third amplifier is electrically connected to the first output terminal, a third output terminal of the third amplifier is electrically connected to one terminal of the diode, a third negative input terminal of the third amplifier is electrically connected to the other terminal of the diode, the second positive input terminal, one terminal of the capacitor and one terminal of the second resistor, the capacitor and the second resistor are connected in parallel, and the other terminal of the capacitor and the other terminal of the second resistor are grounded.
7. The electronic moisture absorption system of claim 1, wherein the electrical signal is a square wave electrical signal, the sensing electrode comprises conductive ink and silver ions, and the ratio of the area of the sensing electrode to the area of the waterproof layer is greater than 0.3.
8. The electronic moisture absorption system of claim 1, wherein the electronic sensing device comprises a communication unit, the communication unit transmitting the humidity data to a master control device.
9. A moisture absorption sensing method of an electronic moisture absorption system, comprising:
contacting the electronic sensing device with a sensing electrode of the absorbent article;
outputting an electrical signal with the electronic sensing device;
sensing a voltage change of the electric signal by the electronic sensing device according to the electric signal passing through the sensing electrode, and calculating to generate impedance data of the water absorption layer of the water absorption object; and
generating humidity data by the electronic sensing device according to the impedance data;
the moisture absorption article comprises a moisture absorption layer, a waterproof layer and a sensing electrode, wherein the waterproof layer is arranged on the moisture absorption layer, and the sensing electrode is formed on the waterproof layer.
10. The method of claim 9, wherein the sensing electrode comprises a first electrode portion and a second electrode portion, the first electrode portion and the second electrode portion being spaced apart from each other; the electronic sensing device comprises a microprocessor, a first resistor, a first amplifier, a second amplifier, a third amplifier, a diode, a capacitor and a second resistor; the first end of the first resistor is electrically connected with the microprocessor, the second end of the first resistor is electrically connected with the water absorption layer through the sensing electrode, the microprocessor outputs and receives the electric signal, and the microprocessor generates the impedance data according to the first voltage value of the first end and the second voltage value of the second end; the first positive input end of the first amplifier is electrically connected with the second end of the first resistor, the second positive input end of the second amplifier is electrically connected with the peak detection circuit, the second output end of the second amplifier is electrically connected with the second negative input end of the second amplifier and the microprocessor, the third positive input end of the third amplifier is electrically connected with the first output end of the first amplifier, the third output end of the third amplifier is electrically connected with one end of the diode, and the third negative input end of the third amplifier is electrically connected with the other end of the diode, the second positive input end of the second amplifier, one end of the capacitor and one end of the second resistor; the capacitor and the second resistor are connected in parallel, and the other end of the capacitor and the other end of the second resistor are grounded.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| TW110142313A TWI797832B (en) | 2021-11-12 | 2021-11-12 | Electronic moisture absorption system and moisture absorption sensing method thereof |
| TW110142313 | 2021-11-12 |
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| CN116124840A true CN116124840A (en) | 2023-05-16 |
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| TW526327B (en) * | 1998-02-19 | 2003-04-01 | Sumitomo Metal Ind | Detection apparatus and method of physical variable |
| TWI459933B (en) * | 2011-07-15 | 2014-11-11 | Ind Tech Res Inst | Diaper having wetness detectors, system thereof and wetness detecting method |
| EP2832323A1 (en) * | 2013-07-31 | 2015-02-04 | Digisense Ltd. | Sensor for urine and stool detection |
| US11439543B2 (en) * | 2017-05-30 | 2022-09-13 | Kao Corporation | Wearable article equipped with sensor |
| CN112955103A (en) * | 2018-07-12 | 2021-06-11 | R·图利 | Method for manufacturing diaper with humidity sensor |
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| TWI797832B (en) | 2023-04-01 |
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