WO2023131084A1

WO2023131084A1 - Feeding amount measurement method and weighing device thereof

Info

Publication number: WO2023131084A1
Application number: PCT/CN2022/144161
Authority: WO
Inventors: 闫立涛
Original assignee: 上海点沃智能科技有限公司
Priority date: 2022-01-10
Filing date: 2022-12-30
Publication date: 2023-07-13
Also published as: CN114485883A

Abstract

A feeding amount measurement method for an infant or an animal cub, which is realized on a weighing device, and is provided with a feeding amount measurement mode. Automatic and semi-automatic measurement is achieved by weighing before feeding, weighing after feeding, and calculating. Methods for counting the feeding amount and for compensating for a dependant weight loss are provided, and convenience is further improved. The weighing device involved in the method comprises a display screen. The display screen is provided with at least one weighing data display area, at least one difference display area, and at least one accumulated value display area. According to the present invention, the operation steps of the feeder are effectively reduced, and the comfort and safety of the dependant are improved.

Description

A feeding amount measuring method and weighing device thereof

technical field

The invention relates to the field of weighing, in particular to a method for measuring the feeding amount of human infants or animal cubs and a weighing device thereof.

Background technique

After the baby is born, at the beginning of breastfeeding, in some cases (especially premature infants and insufficient breast milk at the beginning), it is necessary to count the amount of feeding for several days to several weeks. Among them, the weighing method has become the first choice because of its low interference to feeding, good accuracy, and easy implementation. The weighing method is to use a high-precision weighing device to weigh once before and after feeding, and take the difference to obtain the feeding amount.

Existing high-precision baby scales have the function of calculating the difference between two weighing values, such as Tanita's BD-815U, the basic method is:

a) Weigh the baby once before feeding, then click the "Save" button to save this measurement;

b) Weigh the baby again after feeding, and then click the "Difference" button, the difference between this measurement and the saved value will be displayed.

This difference is the single feeding amount. The problem is that weighing is its basic function, and the difference calculation is an additional function. This makes the operation complicated, and the feeding amount cannot be counted. It is necessary to manually calculate each feeding amount. Record it in this book. At the same time, the baby is usually in the crib. Every time you measure, you need to carry the baby from the crib to the baby scale, and then feed the baby after weighing; In the bed, the whole process is complicated, which also affects the baby's rest and has potential safety hazards.

The present invention aims to provide a special weighing device with feeding volume and a feeding volume measuring method thereof, so as to effectively simplify the operation of the feeder and ensure a better rest for the baby.

Contents of the invention

The terms used in this article are defined as follows:

Feeder: A caregiver of a human infant or a provider of milk/milk substitute for an animal pup.

Recipient: A human infant or animal offspring.

The weighing device related to the present invention has a weighing body, a controller, and a display screen, and is characterized in that it has a feeding amount measurement mode; there is at least one weighing data display area on the display screen, which is used to display the weighing weight and also includes feeding before feeding. Weight Wf and weight Wb after feeding; at least one difference display area for displaying feeding amount Vm; at least one cumulative value display area for displaying total feeding amount Wsum.

When the recipient is not usually placed on the weighing device, the feeding amount measurement method is:

a) Set or preset the weight detection threshold TH (possible minimum and maximum value of the dependent in the entire detection period);

b) The weighing device weighs the state Sf before feeding;

c) In the Sf state, weigh the dependent on the weighing device, and display the current weight value;

d) In the Sf state, if the weight value is within the threshold TH range, the weight before feeding is obtained as Wf, and enters the weighing state after feeding Sb; otherwise, return to c;

e) In the Sb state, weigh the dependent on the weighing device, and display the current weight value;

f) In the state of Sb, if the weight value is within the range of the threshold value TH, the weight after feeding is obtained as Wb, and enter the calculation state Ss; otherwise, return to e;

g) In the state of Ss, if Wb-Wf>0, calculate the feeding amount Wm=Wb-Wf, otherwise Wm=0, display Wm;

h) In Ss state, return to b.

When the recipient is usually placed on the weighing device, the basic method of feeding amount measurement is:

a) Enter the pre-feeding weighing state Sf state;

b) In the state of Sf, the dependent is weighed without leaving the weighing device, and the obtained weight is F0;

c) In the Sf state, the recipient leaves the weighing device and weighs, and obtains the weight as F1, calculates Wf=F0-F1, displays the current weighing Wf, and enters the post-feeding weighing state Sb;

d) In the state of Sb, the dependent is weighed when it is not placed in the weighing device, and the obtained weight is B0;

e) In the state of Sb, the dependent is put into the weighing device and weighed, and the weight is obtained as B1, calculated to obtain Wb=B1-B0, displaying the current weighing Wb, and entering the calculation state Ss;

f) In the state of Ss, calculate Wm=Wb-Wf, if Wm>0, then display the current feeding amount Wm;

g) In Ss state, return a.

On the basis of the above basic methods, it can be further subdivided into automatic measurement or manual measurement mode, including methods:

a) Set or preset weight detection threshold TH;

If it is in automatic measurement mode:

b) The weighing device periodically detects the weight;

c) If the detected weight becomes smaller and the amount of change is greater than the threshold TH, then the amount of change is Wf;

d) If the detected weight becomes larger and the amount of change is greater than the threshold TH, then the amount of change is Wb.

If it is in manual measurement mode:

b) The body triggers the sensor, starts to detect the weight, and obtains the weight as F0 or B0, prompts after the detection is completed, and begins to periodically detect the weight;

c) If the detected weight becomes smaller and the variation is greater than the threshold TH, the obtained weight is F1; if the detected weight becomes larger and the variation is greater than the threshold TH, the obtained weight is B1;

d) Stop periodic weight detection.

The weight loss of the recipient during feeding can be compensated when the recipient is normally placed or not placed on the weighing device. The dependents suffer from invisible dehydration due to breathing and skin. In general, the indistinct dehydration per kilogram of body weight per day is 42 grams. The feeding process is relatively long, so this loss is sometimes not negligible. Invisible water loss is related to ambient temperature and humidity, so the weighing device can add temperature and humidity sensors, and the weight loss compensation method is:

a) Record the weighing time of Wf and Wb, and collect the ambient temperature and humidity around the weighing device at the same time;

b) Calculate the time difference Tm between adjacent Wb and Wf, and calculate the recipient's weight loss Loss based on Tm, temperature value, humidity value and body weight;

c) Correct the feeding amount this time as Wm=Wm+Loss.

When the dependents are usually placed on the weighing device or not placed on the weighing device, the statistics of the feeding amount can be included, and the statistics can be accumulated or cycled. The details are as follows:

Accumulated statistics, including the following methods:

a) Start statistics from the weight Wf before feeding for the first time, set this time as TS; and set the total feeding amount Wsum=0, and the cumulative statistical time Tsum=0;

b) In the Sb state, calculate Tsum = current time - TS, and display Tsum;

c) In the Sb state, calculate Wsum = Wsum + current feeding amount, and display Wsum;

Periodic statistics, including the following processes

a) Set or preset feeding amount statistics period P;

b) Record the time of each weighing time of Wf and Wb;

c) When the accumulated feeding time is greater than or equal to the cycle P, save or display the total feeding amount Wsum in the cycle, and then set Wsum=0 and Tsum=0.

The beneficial effects of the invention are: by setting a special feeding amount measurement mode for the weighing device and providing a simple method, the operation steps of the feeder are effectively reduced, and the work of manually recording each feeding amount is avoided. Among them, the method provided in the scene where the recipient is usually placed on the weighing device further reduces the burden on the feeder and improves the comfort and safety of the recipient.

Description of drawings

Figure 1 shows the display layout A of the weighing device.

Figure 2 is the display layout B of the weighing device.

Figure 3 is the layout C of the display screen of the weighing device.

Fig. 4 is the basic state machine of the feeding amount measurement method.

Legend markup:

1 is the local display screen of the weighing device;

2 and 3 are weighing data display areas, of which 2 shows the weight before feeding, and 3 shows the weight after feeding;

4 is the difference display area, which shows the difference between the weight after this feeding and the previous two feedings;

5 is the cumulative value display area, which is used to display the cumulative feeding weight;

6 is a timing area, which is used to display the cumulative statistical time after the first feeding starts;

7 is the feeding amount display area of the last cycle;

9 is a status indicator light, including the weighing status before feeding and the weighing status after feeding;

10 is a remote realization screen of the weighing device, such as a mobile phone.

Detailed ways:

The specific implementation of the present invention is described here by way of several specific examples. The following embodiments are illustrated by taking the measurement of feeding amount of human infants as an example, and these embodiments are also applicable to animal pups that need to be fed. The basic state machine involved in the following embodiments is shown in FIG. 4 .

Embodiment 1: the weighing device is a baby scale, and its display screen is as shown in Figure 1, and the feeding amount statistics mode is an accumulative mode; when the baby is not feeding in the crib, the baby scale is separated from the crib, and its measurement method is:

To set up the baby scale:

a) Set the baby scale in the feeding measurement mode;

b) Automatically set the total feeding amount Wsum=0, and the cumulative start time TS=0;

c) If the weight detection threshold TH is not set, then use the existing TH of the device, TH includes the lower limit and upper limit of the baby's weight;

d) If TH setting is performed, select TH setting, measure the baby's weight or directly input the value, get TH and save it.

Feeding measurement:

a) The baby is in the weighing state Sf before breastfeeding, and the cursor flashes in the weighing data display area 2;

b) In the Sf state, before feeding, put the baby on the baby scale for weighing, and the current weight value will be displayed in the weighing data display area 2;

c) In the Sf state, if the weight value is within the threshold TH range, the weight before feeding is obtained as Wf, and the current time Tf is recorded. If TS is 0, then TS is set as the current time, and enters the post-feeding weighing state Sb, and at the same time There is a blinking cursor in the weighing data display area 3; if the weight value is outside the threshold TH range, the data area 2 will flash as a whole to warn, and return to b;

d) In the Sb state, after feeding, put the baby on the baby scale for weighing, and the current weight value will be displayed in the weighing data display area 3;

e) In the Sb state, if the weight value is within the threshold TH range, the weight after breastfeeding is obtained as Wb, the current time Tb is recorded, and enters the calculation state Ss; if the weight value is outside the threshold TH range, the data area 3 will flash as a whole to warn , return d;

f) In the state of Ss, if Wb-Wf>0, then Wm=Wb-Wf, otherwise Wm=0, the current feeding amount Wm is displayed in the difference area 4;

g) In Ss state, carry out cumulative statistics of feeding amount, total feeding amount Wsum=Wsum+Wm, display Wsum in the cumulative value display area; calculate cumulative statistical time Tsum=current time-TS, display Tsum in timing area 6.

h) In the Ss state, return to the pre-feeding weighing state Sf.

Embodiment 2: The weighing device is a crib with a weighing function, and its display screen is shown in Figure 2; the weighing device has a temperature and humidity sensor, the measurement mode is automatic measurement, and the loss compensation mode is enabled; the baby does not feed When in a crib, it is measured by:

To set up the baby scale:

a) Set the baby scale in the feeding measurement mode;

c) If the weight detection threshold TH is not set, use the existing TH of the device;

d) If TH setting is performed, select TH setting, and obtain and save TH by measuring the baby's weight or directly inputting the value;

e) Set the feeding amount statistics mode to cycle mode, and the cycle is 24 hours;

f) The feeding amount display area 7 in the last cycle displays 0g.

Feeding measurement:

a) The weighing device periodically detects the weight;

b) The weighing state Sf of the crib weighing device before feeding;

c) In the Sf state, if the detected weight becomes smaller, set the weight before the change as F0, and the weight after the change as F1, and the change Delta=F0-F1 is displayed in the weighing data display area 2; if the change Delta meets the threshold TH, indicating that the baby is picked up, then the weight before feeding is Wf=Delta, record the current time Tf, if TS is 0, set TS as the current time, and enter the weighing state after feeding Sb; otherwise, the data area 2 flashes as a whole To warn, return to b;

d) In the state of Sb, if the detected weight becomes larger, set the weight before the change as B0, and the weight after the change as B1, and the change amount Delta=B1-B0 is displayed in the weighing data display area 3; if the change amount Delta meets the threshold TH, indicating that the baby is put down, then the weight after feeding is Wb=Delta, record the current time Tb, and enter the calculation state Ss; otherwise, the data area 3 will flicker as a whole to warn;

e) In the Ss state, if Wb-Wf>0, read the current temperature and humidity value, and calculate the weight loss Loss within the time Tm=Tb-Tf, then Wm=Wb-Wf+Loss; otherwise Wm=0, in the difference Zone 4 shows the current feeding amount Wm;

f) In the Ss state, calculate the total feeding amount Wsum=Wsum+Wm, calculate Tsum=Tb-TS, if Tsum is greater than or equal to 24 hours, then display Wsum in the feeding amount display area 7 of the previous cycle, then set Wsum=0, Tsum =0, TS=Tb, 0g is displayed in the cumulative value display area 5, and 0 is displayed in the timing area 6; if Tsum is less than 24 hours, Wsum is displayed in the cumulative value display area 5, and Tsum is displayed in the timing area 6;

g) In the Ss state, return to the pre-feeding weighing state Sf.

Embodiment 3: The weighing device is a crib with a weighing function, and its display screen is shown in Figure 3, including a local display screen 1 and a remote display screen 10; the weighing

data display areas

2 and 3 share a physical area, The far-end display screen 10 is a mobile phone; the weighing device has a trigger sensor of an infrared mode or a mechanical button mode, a buzzer, and a temperature and humidity sensor; the weighing device works in a manual trigger measurement mode; In cycle mode, the statistical period is 24 hours; when the baby is in the crib when not feeding, the measurement method is:

If you can set the weighing device locally, the data will be automatically synchronized to the mobile phone; if you can set it on the mobile phone, the data will be automatically synchronized to the local:

a) Set the baby scale in the feeding measurement mode;

Feeding measurement:

a) The weighing device is in the weighing state Sf before feeding, and the status indicator 9 "front" is on;

b) In the Sf state, the body triggers the sensor, starts to detect the weight, and obtains F0. After the detection is completed, a sound or light prompt is given, and the weight is periodically detected;

c) In the state of Sf, if the weight changes, F1 is obtained, and the change amount Delta=F0-F1 is displayed in the weighing data display area 2; if the change amount Delta meets the threshold value TH, it means that the baby is picked up, and the weight before feeding is obtained For Wf=Delta, record the current time Tf, and enter the weighing state Sb after feeding, stop periodic weight detection; if Delta does not meet the threshold TH, the data area 2 will flash as a whole to warn;

d) In the state of Sb, the body triggers the sensor, starts to detect the weight, and obtains B0. After the detection is completed, a sound or light prompt is given, and the weight is periodically detected;

e) In the state of Sb, if the weight changes, B1 is obtained, and the change amount Delta=B1-B0 is displayed in the weighing data display area 3; if the change amount Delta meets the threshold value TH, it means that the baby is put down, and the weight after feeding is Wb =Delta, record the current time Tb, and enter the calculation state Ss; if Delta does not meet the threshold TH, the data area 3 will flash as a whole to warn;

g) In the Ss state, transmit Tf, Wf, Tb, Wb and temperature and humidity values to the mobile phone through wireless means;

h) In the Ss state, return to the pre-feeding weighing state Sf.

Mobile phone side processing:

a) After receiving the data, if Wb-Wf>0, then Wm=Wb-Wf, otherwise Wm=0, calculate the total feeding amount Wsum=Wsum+Wm; if TS is 0, then set TS=Tf, calculate Tsum= Tb-TS, if the Tsum is greater than or equal to 24 hours, if there is already data in the first area of the display area 7, then move the first area into the second area, and so on, display Wsum in the first area of the display area 7; then set Wsum=0, Tsum= 0, TS=Tb, 0g is displayed in the cumulative value display area 5, and 0 is displayed in the timing area 6; if Tsum is less than 24 hours, Wsum is displayed in the cumulative value display area 5, and Tsum is displayed in the timing area 6.

Claims

A method for measuring feeding amount, which is implemented on a weighing device, is characterized in that: it has a feeding amount measuring mode, and the recipient is not usually placed on the weighing device, including the following methods:

a) Set or preset weight detection threshold TH;

b) The weighing device weighs the state Sf before feeding;

c) In the Sf state, weigh the dependent on the weighing device, and display the current weight value;

d) In the Sf state, if the weight value is within the threshold TH range, the weight before feeding is obtained as Wf, and enters the weighing state after feeding Sb; otherwise, return to c;

e) In the Sb state, weigh the dependent on the weighing device, and display the current weight value;

f) In the state of Sb, if the weight value is within the range of the threshold value TH, the weight after feeding is obtained as Wb, and enter the calculation state Ss; otherwise, return to e;

g) In the state of Ss, if Wb-Wf>0, calculate the feeding amount Wm=Wb-Wf, otherwise Wm=0, display Wm;

h) In Ss state, return to b.
A kind of feeding amount measuring method based on claim 1, it is characterized in that comprising feeding amount statistics,

Accumulated statistics can be performed, including the following methods:

a) Start statistics from the weight before feeding for the first time as Wf, set this time as TS; and set the total feeding amount Wsum=0, and the cumulative statistical time Tsum=0;

b) In the Sb state, calculate Tsum = current time - TS, and display Tsum;

c) In the Sb state, calculate Wsum = Wsum + current feeding amount, and display Wsum;

Or periodic statistics can be performed, including the following methods:

a) Set or preset feeding amount statistics period P;

b) Record the time of each weighing time of Wf and Wb;

c) When the accumulated feeding time is greater than or equal to the cycle P, save or display the total feeding amount Wsum in the cycle, and then set Wsum=0 and Tsum=0.
A method for measuring feeding amount based on claim 1 or 2, characterized in that there is a method for compensating the body weight loss of the recipient during feeding, and the weighing device has a temperature and humidity sensor, including the following methods:

a) Record the weighing time of Wf and Wb, and collect the ambient temperature and humidity around the weighing device at the same time;

b) Calculate the time difference Tm between adjacent Wb and Wf, and calculate the recipient's weight loss Loss based on Tm, temperature value, humidity value and body weight;

c) Correct the feeding amount this time as Wm=Wm+Loss.
A method for measuring feeding amount, which is implemented on a weighing device, is characterized in that: the weighing device has a feeding amount measuring mode, and the recipient is usually placed on the weighing device, including the following methods:

a) Enter the pre-feeding weighing state Sf state;

b) In the state of Sf, the dependent is weighed without leaving the weighing device, and the obtained weight is F0;

c) In the Sf state, the recipient leaves the weighing device and weighs, and obtains the weight as F1, calculates Wf=F0-F1, displays the current weighing Wf, and enters the post-feeding weighing state Sb;

d) In the state of Sb, the dependent is weighed when it is not placed in the weighing device, and the obtained weight is B0;

e) In the state of Sb, the dependent is put into the weighing device and weighed, and the weight is obtained as B1, calculated to obtain Wb=B1-B0, displaying the current weighing Wb, and entering the calculation state Ss;

f) In the state of Ss, calculate Wm=Wb-Wf, if Wm>0, then display the current feeding amount Wm;

g) In Ss state, return a.
A feeding amount measurement method based on claim 4, the weighing device has a trigger sensor, and is characterized in that it has an automatic measurement or manual measurement mode, including the method:

a) Set or preset weight detection threshold TH;

If it is in automatic measurement mode:

b) The weighing device periodically detects the weight;

c) If the detected weight becomes smaller and the amount of change is greater than the threshold TH, then the amount of change is Wf;

d) If the detected weight becomes larger and the amount of change is greater than the threshold TH, then the amount of change is Wb;

If it is in manual measurement mode:

b) The body triggers the sensor, starts to detect the weight, and obtains the weight as F0 or B0, prompts after the detection is completed, and begins to periodically detect the weight;

c) If the detected weight becomes smaller and the variation is greater than the threshold TH, the obtained weight is F1; if the detected weight becomes larger and the variation is greater than the threshold TH, the obtained weight is B1;

d) Stop periodic weight detection.
A kind of feeding amount measuring method based on claim 4 or 5, it is characterized in that comprising feeding amount statistics,

Accumulated statistics can be performed, including the following methods:

a) Start statistics from the weight before feeding for the first time as Wf, set this time as TS; and set the total feeding amount Wsum=0, and the cumulative statistical time Tsum=0;

b) In the Sb state, calculate Tsum = current time - TS, and display Tsum;

c) In the Sb state, calculate Wsum = Wsum + current feeding amount, and display Wsum;

Or periodic statistics can be performed, including the following methods:

a) Set or preset feeding amount statistics period P;

b) Record the time of each weighing time of Wf and Wb;

c) When the accumulated feeding time is greater than or equal to the cycle P, save or display the total feeding amount Wsum in the cycle, and then set Wsum=0 and Tsum=0.
A method for measuring feeding amount based on claim 4 or 5, characterized in that there is a method for compensating for the loss of body weight of the recipient during feeding, and the weighing device has temperature and humidity sensors, including the following methods:

a) Record the weighing time of Wf and Wb, and collect the ambient temperature and humidity around the weighing device at the same time;

b) Calculate the time difference Tm between adjacent Wb and Wf, and calculate the recipient's weight loss Loss based on Tm, temperature value, humidity value and body weight;

c) Correct the feeding amount this time as Wm=Wm+Loss.
A weighing device has a weighing body, a controller, and a display screen, and is characterized in that it has a feeding amount measurement mode, and has at least one weighing data display area on the display screen, which is used to display the weighing weight and the weight before feeding Wf and weight Wb after feeding; at least one difference display area for displaying feeding amount Vm; at least one cumulative value display area for displaying total feeding amount Wsum.