CN107802408B - Multi-sensing-point intelligent diaper and monitoring method thereof - Google Patents
Multi-sensing-point intelligent diaper and monitoring method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
- A61F2013/424—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm having an electronic device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
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Abstract
The invention discloses a multi-sensing-point intelligent diaper and a monitoring method thereof. The invention adopts the technical scheme that a plurality of groups of detection electrodes are arranged on a hollowed-out substrate and are placed on the surface of a diaper, and the plurality of groups of detection electrodes are distributed from front to back along the central axis of the diaper; when the excrement is present, the multiplexing unit collects the resistance value between the detection electrodes, judges whether the excrement is present according to the change of the resistance value in a period of time, and judges whether the excrement is present or not; the invention adopts the hollowed-out substrate, realizes the air permeability of the electrode plate, is beneficial to the rapid absorption of the diaper on the urine and the feces, and is also beneficial to the improvement of the comfort level of infants; the device has the capability of distinguishing the urination and the defecation, and can realize different functional prompts according to different urination and defecation.
Description
Technical Field
The invention relates to an intelligent diaper, in particular to a multi-sensing-point intelligent diaper and a monitoring method thereof.
Background
Because the traditional diaper is frequently changed, the cleaning amount is large, and the skin of a baby is easy to soak in urine stains and excrement stains without attention, the cleaning and airing conditions are poor, and bacteria are easy to breed. Disposable diapers should be born and become more popular with young parents. Many times, a large person forgets to change a diaper for a baby due to negligence or other reasons, and the factors can harm the health of the baby. The intelligent paper diaper meets the market demand.
The existing intelligent diaper adopts a pair of sensing electrodes with a certain distance placed in a sensing area, whether defecation exists or not is judged by detecting whether the resistance value of the sensing electrodes is in a set threshold range, and the principle is similar to that of a raindrop sensor. Sensing the change in the resistance of the electrode means the change in the humidity of the electrode environment, so another humidity detection method is to directly use a humidity sensor, and detect whether there is bowel movement by combining the humidity sensor with the temperature change. However, the existing method can only detect whether the defecation exists or not, and can not analyze the defecation amount; and no resolution of urination and defecation, if the infant is just defecation, the infant can not be detected; the humidity sensor is combined with the temperature sensor to easily generate false alarm or missing alarm. Moreover, the sensing electrode is arranged on a monolithic substrate, so that the air permeability is poor, and the skin of a baby is greatly damaged.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the intelligent diaper with multiple sensing points and the monitoring method thereof, and the intelligent diaper adopts a plurality of sensing areas to accurately judge whether defecation exists or not and has the capability of distinguishing urination and defecation.
One object of the present invention is to propose a multi-sensing point smart diaper.
The multi-sensing point intelligent diaper of the present invention comprises: the device comprises a substrate, a plurality of groups of detection electrodes and a multiplexing unit; wherein, a plurality of groups of detection electrodes are distributed on the surface of the substrate from front to back to form a sensing structure, and each group of detection electrodes comprises two independent sensing electrodes; the substrate is discontinuous, and gaps are formed among the induction electrodes to form a hollowed-out or strip-shaped structure; the sensing structure is arranged on the surface of the diaper, which is adhered to the skin, and a plurality of groups of detection electrodes are uniformly distributed from front to back along the central axis of the diaper or are unevenly distributed according to the requirement; spreading an insulating permeable surface layer on the surfaces of the multiple groups of detection electrodes; each induction electrode is connected to the multiplexing unit through a wire respectively; the multiplexing unit selects every two sensing electrodes to form a detection electrode pair, and each detection electrode pair is connected to a separate channel of the multiplexing unit; the multiplexing unit is arranged at a position that the surface of the diaper faces the abdomen of the infant and does not influence the activity of the infant; when the excrement is discharged, the resistance value between a pair of sensing electrodes in the same detection electrode pair is changed and is transmitted to the multiplexing unit through the lead; the multiplexing unit judges whether to relieve oneself and whether to relieve oneself or urine by the change of the resistance value and holding time, and transmits the result to the external device.
The multiplexing unit includes: a switching circuit, a signal processing circuit, an A/D converter, a processor, and a communication circuit; each sensing electrode is connected to the switching circuit of the multiplexing unit through a wire respectively; the processor selects two sensing electrodes in each group of sensing electrodes to form a sensing electrode pair, and controls the switching circuit to connect the two sensing electrodes in the same group to an independent channel of the signal processing circuit of the multiplexing unit; or the processor selects one sensing electrode from each two adjacent groups of sensing electrodes to form a sensing electrode pair, and controls the switching circuit to connect the corresponding two sensing electrodes in the two adjacent groups of sensing electrodes to an independent channel of the signal processing circuit of the multiplexing unit; when defecation occurs, the resistance value between the two sensing electrodes in one sensing electrode pair is changed, the signal processing circuit adopts a preprocessing circuit formed by an analog operational amplifier, an input signal of the preprocessing circuit and an output signal of the preprocessing circuit are in a proportional, logarithmic or exponential function relation, and the output signal of the preprocessing circuit is transmitted to the A/D converter; the A/D converter converts the analog signal into a digital signal and transmits the digital signal to the processor; the processor obtains a resistance value through calculation according to the digital signal value of the A/D converter so as to obtain the dryness and the humidity, and judges whether defecation and urination are performed according to the change condition of the dryness and the humidity in a period of time; the processor is connected to a communication circuit that delivers the results to an external device.
The multiplexing unit is small, exquisite, light and thin, the switching circuit, the signal processing circuit, the A/D converter, the processor and the communication circuit are integrated on a high-density circuit board, and a shell is sleeved outside the circuit board.
The external equipment is a mobile phone or a repeater; the multiplexing unit is connected with the mobile phone or the repeater in a Bluetooth mode, or the multiplexing unit is connected with the repeater in a wireless connection technology such as Zigbee, 6LowPAN or Lora, and the mobile phone or the repeater is connected with the Internet in a wireless fidelity WIFI or mobile network; or the multiplexing unit directly accesses the internet through WIFI and a cellular narrowband internet of things (NB-IoT) mode. Through the network, the guardian remotely inquires various related information of the infant and knows the real-time condition of the infant.
The position of the multiplexing unit does not influence the comfort of the baby as much as possible, the multiplexing unit is arranged on a diaper facing the baby belly, and the multiplexing unit is clamped between the diaper and the baby belly after the diaper is worn.
The material of the insulating water permeable surface layer adopts cotton material.
The sensing structure is arranged on the surface of the diaper or is arranged in the diaper; in the peripheral mode, the substrate of the sensing structure is arranged on the surface of the diaper, which is attached to the skin, the plurality of groups of detection electrodes face outwards and inwards towards the diaper respectively, and the insulating water permeable surface layer is paved on the surfaces of the plurality of groups of sensing electrodes; in the built-in mode, a sensing structure is arranged in a diversion layer of the diaper, a plurality of groups of sensing electrodes face the skin, and an insulating permeable surface layer is arranged on the surface of the plurality of groups of sensing electrodes on the diversion layer.
The hollowed-out size of the substrate is between 0.1 and 40 mm; the multiple groups of detection electrodes are prepared on the substrate by photoetching, crimping, printing or corrosion.
The multiple groups of detection electrodes can be arranged in different ways according to different babies. The density of the detection electrodes designed for the front position of the male babies is higher, so that a small amount of urination can be more sensitively monitored, the density of the detection electrodes designed for the middle and rear positions is lower, and the materials are saved and the cost and the design difficulty are reduced under the condition that no report missing is ensured. The same reason is that the density of the detection electrodes designed for female babies is low at both ends, while the density in the middle position is high.
In addition, the degree of the density of the detection electrode is directly related to the lower limit of urine volume triggering an alarm. Denser electrodes can have better sensitivity, but can lead to excessive wiring issues; thinner electrodes may reduce the number of wires, but may be missed when urine volume is too low. Therefore, the electrodes are arranged in a non-uniform distribution manner, so that the higher defecation detection sensitivity can be achieved while the number of connecting wires is reduced.
Another object of the present invention is to provide a method for monitoring a multi-sensing point smart diaper.
The invention relates to a monitoring method of a multi-sensing-point intelligent diaper, which comprises the following steps:
1) A plurality of groups of detection electrodes are distributed on the surface of the substrate from front to back to form a sensing structure, and each group of detection electrodes comprises two independent induction electrodes to form a detection electrode pair; the substrate is discontinuous, gaps are formed between the sensing electrodes, a hollowed or strip-shaped structure is formed, the sensing structure is arranged on the surface of the diaper, which is adhered to the skin, a plurality of groups of detection electrodes are uniformly distributed from front to back along the central axis of the diaper, or are uniformly distributed as required, and an insulating water permeable surface layer is paved on the surface of the plurality of groups of detection electrodes; each induction electrode is connected to the multiplexing unit through a lead wire respectively;
2) Disposing the multiplexing unit in a position where the surface of the diaper faces the abdomen of the infant and does not affect the activity of the infant;
3) The multiplexing unit selects every two sensing electrodes to form a detection electrode pair, and each detection electrode pair is respectively connected to a separate channel of the multiplexing unit;
4) When the excrement is discharged, the resistance value between a pair of sensing electrodes in the same detection electrode pair is changed and is transmitted to the multiplexing unit through the lead;
5) The multiplexing unit judges whether to relieve the bowels and whether to relieve the bowels or urinate or not through the change of the resistance value and the holding time, and transmits the result to external equipment; and if the stool is judged, a diaper changing prompt is sent out.
In step 3), the processor selects two sensing electrodes in each group of sensing electrodes to form a sensing electrode pair, and the processor controls the switching circuit to connect the two sensing electrodes in the same group to an independent channel of the signal processing circuit of the multiplexing unit; or the processor selects one sensing electrode from each two adjacent groups of sensing electrodes to form a sensing electrode pair, and controls the switching circuit to connect the corresponding two sensing electrodes in the two adjacent groups of sensing electrodes to an independent channel of the signal processing circuit of the multiplexing unit.
In step 4), when defecation occurs, the resistance value between the two sensing electrodes in one sensing electrode pair is changed, the signal processing circuit adopts a preprocessing circuit formed by an analog operational amplifier, an input signal of the preprocessing circuit and an output signal are in a proportional, logarithmic or exponential function relation, and the output signal of the preprocessing circuit is transmitted to the A/D converter; the A/D converter converts the analog signal into a digital signal and transmits the digital signal to the processor; the processor obtains a resistance value through calculation according to the digital signal value of the A/D converter so as to obtain the dryness and the humidity, and judges whether defecation and urination are performed according to the change condition of the dryness and the humidity in a period of time; the processor is connected to a communication circuit that delivers the results to an external device.
In step 5), the period of time is 1s to 10min.
In step 5), the processor judges whether to relieve oneself and is stool or urine, specifically include the following steps:
a) The processor continuously records the resistance value data between two induction electrodes of one detection electrode pair in a period of time, wherein the period of time is 1 s-10 min;
b) Finding out the maximum value, the minimum value, the average value and the root mean square value of the resistance value data in the period of time as reference data;
c) Selecting a time window for defecation judgment, and finding out the maximum value and the minimum value of the resistance value data in the time window, wherein the time window is 1-10 seconds;
d) Calculating the slope according to the maximum value and the minimum value in the time window, thereby obtaining the change rate of the resistance value;
e) Judging whether to relieve the bowels according to the change rate of the resistance value, judging to relieve the bowels if the change rate exceeds a bowel movement threshold value, and judging to not relieve the bowels if the change rate does not exceed the threshold value;
f) And judging whether the urine or the feces is carried out according to the time of the resistance value kept in different resistance value ranges, if the keeping time exceeds a feces threshold value, judging that the urine is carried out, and otherwise, judging that the urine is carried out.
Wherein, in step e), the defecation threshold is 10% -30% of the total range of the A/D converter.
In step f), the stool threshold is 30s to 30min.
The invention has the advantages that:
the invention adopts the technical scheme that a plurality of groups of detection electrodes are arranged on a hollowed-out substrate and are placed on the surface of a diaper, and the plurality of groups of detection electrodes are distributed from front to back along the central axis of the diaper; when the excrement is present, the multiplexing unit collects the resistance value between the detection electrodes, judges whether the excrement is present according to the change of the resistance value in a period of time, and judges whether the excrement is present or not; the invention adopts the hollowed-out substrate, realizes the air permeability of the electrode plate, is beneficial to the rapid absorption of the diaper on the urine and the feces, and is also beneficial to the improvement of the comfort level of infants; the device has the capability of distinguishing the urination and the defecation, and can realize different functional prompts according to different urination and defecation.
Drawings
FIG. 1 is a block diagram of a multi-sensing point smart diaper of the present invention;
FIG. 2 is a schematic view of multiple sets of detection electrodes of a first embodiment of a multi-sensing point smart diaper of the present invention;
FIG. 3 is a schematic view of multiple sets of detection electrodes of a second embodiment of a multi-sensing point smart diaper of the present invention;
FIG. 4 is a schematic diagram of multiple sets of detection electrodes for a third embodiment of a multiple sensing point smart diaper of the present invention.
Detailed Description
The invention will be further elucidated by means of specific embodiments in conjunction with the accompanying drawings.
Example 1
In this embodiment, the set of sensing electrodes includes two sensing electrodes that are independent of each other.
As shown in fig. 1, the multi-sensing point smart diaper of the present embodiment includes: the device comprises a substrate, a plurality of groups of detection electrodes and a multiplexing unit; wherein, a plurality of groups of detection electrodes are uniformly distributed on the surface of the substrate from front to back to form a sensing structure; the substrate is discontinuous, and gaps are formed among the induction electrodes to form a hollowed-out or strip-shaped structure; the sensing structure is arranged on the surface of the diaper, which is adhered to the skin, and a plurality of groups of detection electrodes are uniformly distributed from front to back along the central axis of the diaper; spreading an insulating permeable surface layer on the surfaces of the multiple groups of detection electrodes; each group of detection electrodes is connected to a separate channel of the multiplexing unit through a wire; the multiplexing unit is small, exquisite, light and thin and is arranged at a position where the surface of the diaper faces the abdomen of the infant and does not influence the activity of the infant.
The multiplexing unit comprises a switching circuit, a signal processing circuit, an A/D converter, a processor and a communication circuit; each sensing electrode is connected to the switching circuit of the multiplexing unit through a wire respectively; the processor controls the switching circuit to connect the two sensing electrodes in the same group to an independent channel of the signal processing circuit of the multiplexing unit; or, one sensing electrode is taken from each of two adjacent groups of sensing electrodes to form a sensing electrode pair, and the processor controls the switching circuit to connect the corresponding two sensing electrodes in the two adjacent groups of sensing electrodes to an independent channel of the signal processing circuit of the multiplexing unit; when the excrement is discharged, the resistance value between the two sensing electrodes in one sensing electrode pair is changed, the signal processing circuit adopts a preprocessing circuit formed by an analog operational amplifier, an input signal of the preprocessing circuit and an output signal of the preprocessing circuit are in a proportional, logarithmic or exponential function relation, and the output signal of the preprocessing circuit is transmitted to an A/D converter to convert the analog signal into a digital signal and is transmitted to a processor; the processor obtains a resistance value through calculation according to the digital signal value of the A/D converter so as to obtain the dryness and the humidity, and judges whether defecation and urination are performed according to the change condition of the dryness and the humidity in a period of time; the processor is connected to a communication circuit that delivers the results to an external device.
The multiplexing units are small, light and thin, and are formed by using high density interconnect boards (HDI, high Density Interconnector), and the dimensions in this embodiment are 40×25×5mm.
As shown in fig. 2, in the present embodiment, three sets of detection electrodes are provided, each set of detection electrodes including two independent and relatively parallel strip-shaped sensing electrodes.
Example two
As shown in fig. 3, in this embodiment, 8 groups of detection electrodes are provided, each group of detection electrodes including two independent sensing electrodes having complementary shapes. Other embodiments are the same as the first embodiment.
Example III
As shown in fig. 4, in this embodiment, 2 groups of detection electrodes are provided, each group of detection electrodes including two independent sensing electrodes that are staggered with each other. Other embodiments are the same as the first embodiment.
Finally, it should be noted that the examples are disclosed for the purpose of aiding in the further understanding of the present invention, but those skilled in the art will appreciate that: various alternatives and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the disclosed embodiments, but rather the scope of the invention is defined by the appended claims.
Claims (9)
1. A multi-sensing point smart diaper, the multi-sensing point smart diaper comprising: the device comprises a substrate, a plurality of groups of detection electrodes and a multiplexing unit; wherein, a plurality of groups of detection electrodes are distributed on the surface of the substrate from front to back to form a sensing structure, and each group of detection electrodes comprises two independent sensing electrodes; the substrate is discontinuous, gaps are formed among the induction electrodes, a hollowed-out or strip-shaped structure is formed, and the hollowed-out size of the substrate is between 0.1 and 40 mm; the sensing structure is arranged on the surface of the diaper or is arranged in the diaper, and a plurality of groups of detection electrodes are unevenly distributed from front to back along the central axis of the diaper according to the requirement; spreading an insulating permeable surface layer on the surfaces of the multiple groups of detection electrodes; each induction electrode is connected to the multiplexing unit through a wire respectively; the multiplexing unit selects every two sensing electrodes to form a detection electrode pair, and each detection electrode pair is connected to a separate channel of the multiplexing unit; the multiplexing unit is arranged at a position that the surface of the diaper faces the abdomen of the infant and does not influence the activity of the infant; the multiplexing unit includes: a switching circuit, a signal processing circuit, an A/D converter, a processor, and a communication circuit; each sensing electrode is connected to the switching circuit of the multiplexing unit through a wire respectively; the processor selects two sensing electrodes in each group of sensing electrodes to form a sensing electrode pair, and controls the switching circuit to connect the two sensing electrodes in the same group to an independent channel of the signal processing circuit of the multiplexing unit; or the processor selects one sensing electrode from each two adjacent groups of sensing electrodes to form a sensing electrode pair, and controls the switching circuit to connect the corresponding two sensing electrodes in the two adjacent groups of sensing electrodes to an independent channel of the signal processing circuit of the multiplexing unit; when defecation occurs, the resistance value between the two sensing electrodes in one sensing electrode pair is changed, the signal processing circuit adopts a preprocessing circuit formed by an analog operational amplifier, an input signal of the preprocessing circuit and an output signal of the preprocessing circuit are in a proportional, logarithmic or exponential function relation, and the output signal of the preprocessing circuit is transmitted to the A/D converter; the A/D converter converts the analog signal into a digital signal and transmits the digital signal to the processor; the processor obtains a resistance value through calculating according to the digital signal value of the A/D converter so as to obtain the dryness and the humidity, and judges whether defecation and urination are performed according to the change condition of the dryness and the humidity in a period of time; the processor is connected to a communication circuit that delivers the results to an external device.
2. The multi-sensing intelligent diaper according to claim 1, wherein the multiplexing unit has a compact and lightweight shape, and the switching circuit, the signal processing circuit, the a/D converter, the processor and the communication circuit are integrated on a high-density circuit board, and a housing is provided outside the circuit board.
3. The multi-sensor intelligent diaper of claim 1, wherein the external device is a cell phone or a repeater; the multiplexing unit is connected with the mobile phone or the repeater in a Bluetooth mode, or the multiplexing unit is connected with the repeater in a wireless connection technology, and the mobile phone or the repeater is connected with the Internet through wireless fidelity (WIFI) or a mobile network; or the multiplexing unit directly accesses the internet through WIFI and a cellular narrowband internet of things (NB-IoT) mode.
4. The multi-sensing intelligent diaper of claim 1, wherein the plurality of groups of detection electrodes are arranged in different ways according to different male and female babies: the density of the plurality of groups of detection electrodes of the diaper for male babies is higher than that of the detection electrodes at the front position, and the density of the detection electrodes at the middle and rear positions is lower than that of the detection electrodes at the rear position; the density of the detecting electrodes at both ends of the diaper for female babies is low, while the density of the detecting electrodes at the middle position is high.
5. The intelligent diaper with multiple sensing points according to claim 1, wherein the sensing structure is arranged on the surface of the diaper, which is attached to the skin, in a peripheral mode, the plurality of groups of detection electrodes face outwards and inwards towards the diaper respectively, and an insulating water permeable surface layer is paved on the surfaces of the plurality of groups of sensing electrodes; in the built-in mode of the sensing structure, the sensing structure is arranged in a diversion layer of the diaper, a plurality of groups of sensing electrodes face the skin, and the surface of the plurality of groups of sensing electrodes on the diversion layer is provided with an insulating permeable surface layer.
6. The multi-sensing point smart diaper of claim 1, wherein the plurality of sets of sensing electrodes are prepared on the substrate by photolithography, crimping, printing, or etching.
7. The method of monitoring a multi-sensor intelligent diaper according to any one of claims 1-6, wherein the method of monitoring comprises the steps of:
1) A plurality of groups of detection electrodes are distributed on the surface of the substrate from front to back to form a sensing structure, and each group of detection electrodes comprises two independent induction electrodes to form a detection electrode pair; the substrate is discontinuous, gaps are formed among the sensing electrodes, a hollowed-out or strip-shaped structure is formed, the sensing structure is arranged on the surface of the diaper or is arranged in the diaper, a plurality of groups of detection electrodes are unevenly distributed from front to back along the central axis of the diaper as required, and an insulating water permeable surface layer is paved on the surfaces of the plurality of groups of detection electrodes; each induction electrode is connected to the multiplexing unit through a lead wire respectively;
2) Disposing the multiplexing unit in a position where the surface of the diaper faces the abdomen of the infant and does not affect the activity of the infant;
3) The multiplexing unit selects every two sensing electrodes to form a detection electrode pair, and each detection electrode pair is respectively connected to a separate channel of the multiplexing unit;
4) When the excrement is discharged, the resistance value between a pair of sensing electrodes in the same detection electrode pair is changed and is transmitted to the multiplexing unit through the lead;
5) The multiplexing unit judges whether to relieve the bowels and whether to relieve the bowels or urinate or not through the change of the resistance value and the holding time, and transmits the result to external equipment; and if the stool is judged, a diaper changing prompt is sent out.
8. The monitoring method according to claim 7, wherein in step 4), when there is defecation, the resistance value between the two sensing electrodes in one sensing electrode pair is changed, the signal processing circuit employs a preprocessing circuit composed of an analog operational amplifier, an input signal of the preprocessing circuit is in a proportional, logarithmic or exponential function relation with an output signal, and the output signal of the preprocessing circuit is transmitted to the a/D converter; the A/D converter converts the analog signal into a digital signal and transmits the digital signal to the processor; the processor obtains a resistance value through calculation according to the digital signal value of the A/D converter so as to obtain the dryness and the humidity, and judges whether defecation and urination are performed according to the change condition of the dryness and the humidity in a period of time; the processor is connected to a communication circuit that delivers the results to an external device.
9. The monitoring method according to claim 7 or 8, wherein in step 5), the processor determines whether to urinate or not and whether to urinate or not, comprising the steps of:
a) The processor continuously records the resistance value data between two induction electrodes of one detection electrode pair in a period of time, wherein the period of time is 1 s-10 min;
b) Finding out the maximum value, the minimum value, the average value and the root mean square value of the resistance value data in the period of time as reference data;
c) Selecting a time window for defecation judgment, and finding out the maximum value and the minimum value of the resistance value data in the time window, wherein the time window is 1-10 seconds;
d) Calculating the slope according to the maximum value and the minimum value in the time window, thereby obtaining the change rate of the resistance value;
e) Judging whether to relieve the bowels according to the change rate of the resistance value, judging to relieve the bowels if the change rate exceeds a bowel movement threshold value, and judging to not relieve the bowels if the change rate does not exceed the threshold value;
f) And judging whether the urine or the feces is carried out according to the time of the resistance value kept in different resistance value ranges, if the keeping time exceeds a feces threshold value, judging that the urine is carried out, and otherwise, judging that the urine is carried out.
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| CN109259936B (en) * | 2018-10-29 | 2024-03-12 | 深圳市天晟通达科技开发有限公司 | Intelligent diaper and working method thereof |
| CN109481153A (en) * | 2018-12-14 | 2019-03-19 | 深圳代科技有限公司 | A kind of sense electronics wet absorption articles |
| CN110440996A (en) * | 2019-08-16 | 2019-11-12 | 哈工程先进技术研究院(招远)有限公司 | A kind of dipping detector, manufacturing method and its working method |
| CN111089880B (en) * | 2020-03-20 | 2020-09-08 | 深圳一代科技有限公司 | Infiltration degree detection sensor and related method |
| CN113876491B (en) * | 2021-09-17 | 2023-03-24 | 北京他山科技有限公司 | Sanitary product capable of distinguishing shit and urine |
| CN114323660B (en) * | 2022-01-10 | 2023-09-26 | 中车大连机车车辆有限公司 | High-efficiency diesel engine tile grinding alarm device with visual tile grinding position and low false alarm rate |
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| WO2007087674A1 (en) * | 2006-02-01 | 2007-08-09 | Commonwealth Scientific And Industrial Research Organisation | Moisture monitor system for diapers and alike |
| CN200963246Y (en) * | 2006-05-09 | 2007-10-24 | 赵子甫 | Multifunctional paper panty |
| KR100886814B1 (en) * | 2007-04-19 | 2009-03-04 | 서세열 | Humidity sensor for diaper and management system therefor |
| JP5358103B2 (en) * | 2008-02-14 | 2013-12-04 | ユニ・チャーム株式会社 | Automatic urine treatment equipment |
| JP5396233B2 (en) * | 2009-10-23 | 2014-01-22 | ユニ・チャーム株式会社 | Defecation and urination discrimination device |
| JP5396234B2 (en) * | 2009-10-23 | 2014-01-22 | ユニ・チャーム株式会社 | Defecation detection device |
| KR20140124190A (en) * | 2013-04-16 | 2014-10-24 | 지우솔루션주식회사 | Humidity Sensor, System and Method for Controlling thereof |
| CN103932844B (en) * | 2014-04-30 | 2016-06-22 | 南京智松电子科技有限公司 | A kind of smart electronics diaper |
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| CN106652375B (en) * | 2017-02-22 | 2019-02-05 | 王旭升 | A kind of baby's bed-wetting warning device |
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