CN111419231A - Device capable of detecting body fat weight and toilet lid with body fat weight detection function - Google Patents

Device capable of detecting body fat weight and toilet lid with body fat weight detection function Download PDF

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CN111419231A
CN111419231A CN202010314537.0A CN202010314537A CN111419231A CN 111419231 A CN111419231 A CN 111419231A CN 202010314537 A CN202010314537 A CN 202010314537A CN 111419231 A CN111419231 A CN 111419231A
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light
human body
body fat
weight
signal
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王沛
王铭乾
罗金和
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K17/00—Other equipment, e.g. separate apparatus for deodorising, disinfecting or cleaning devices without flushing for toilet bowls, seats or covers; Holders for toilet brushes
    • A47K17/02—Body supports, other than seats, for closets, e.g. handles, back-rests, foot-rests; Accessories for closets, e.g. reading tables
    • A47K17/028—Foot- or knee-rests
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K13/00—Seats or covers for all kinds of closets
    • A47K13/24—Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • A61B5/4872—Body fat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04—Devices for pressing such points, e.g. Shiatsu or Acupressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G01G19/50—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons having additional measuring devices, e.g. for height
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/12—Feet
    • A61H2205/125—Foot reflex zones

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • General Physics & Mathematics (AREA)
  • Rehabilitation Therapy (AREA)
  • Cardiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Toilet Supplies (AREA)

Abstract

The invention discloses a device capable of detecting body fat weight and a toilet lid with a body fat weight detection function, wherein the toilet lid comprises a seat ring and a foot pad plate, the seat ring is provided with two signal acquisition units and a weighing sensor, and the weighing sensor is used for acquiring body weight data of a human body; the foot pad plate is provided with a metal electrode plate, and biological characteristic data of a human body are collected through the metal electrode plate and the signal collecting unit. When people use the closestool, thighs are in contact with the signal acquisition unit arranged on the seat ring, meanwhile, feet are trampled on the foot pad plate, biological characteristic information and weight data of a human body can be acquired through the signal acquisition unit and the metal electrode plates on the foot pad plate, and therefore body fat information of the human body can be obtained. Simultaneously, the toilet lid still passes through weak current signal acquisition circuit and full isolation light path structure and gathers human ECG signal and PPG signal, realizes the monitoring to human health status.

Description

Device capable of detecting body fat weight and toilet lid with body fat weight detection function
Technical Field
The invention relates to the technical field of toilet covers, in particular to a device capable of detecting body fat weight and a toilet cover with a body fat weight detection function.
Background
The toilet bowl is also called as a closestool and is a necessary appliance in daily life, and the toilet cover with the foot mat is popular for people because of the function of facilitating defecation.
In the market at present, adopt intelligent toilet lid to gather human biological characteristics, like the electrocardiosignal to reach the purpose of monitoring human health status, but to old age and specific crowd, the skin surface impedance of thigh position is higher, causes to gather human signal through thigh position and can be difficult relatively.
In the prior art, some body fat scales are used for weighing a human body and obtaining information such as body fat of the human body at the same time, but the body fat scales have the defect that electrocardiosignals cannot be obtained at the same time, or some preliminary signals can be collected by using a traditional calculation method in time, but due to the influence of over-dry soles, accurate electrocardiosignals cannot be obtained.
Therefore, if the electrocardiosignals of the human body are collected, the information of the weight, the body fat and the like of the human body can be collected, so that people can better know the self health condition, and more convenience is brought to the life of people.
Disclosure of Invention
In view of the above, it is desirable to provide a device capable of detecting body fat weight and a toilet lid having a body fat weight detection function, which can simultaneously detect body weight and body fat information.
A device capable of detecting body fat weight is arranged on a seat ring and a foot pad plate, wherein the seat ring is provided with two signal acquisition units and a weighing sensor, and the weighing sensor is used for acquiring body weight data of a human body;
the foot pad plate is provided with a metal electrode plate, and the metal electrode plate and the signal acquisition unit are used for acquiring biological characteristic data of a human body;
the biological characteristic data comprises a bioelectrical impedance value of a human body, and body fat data of the human body can be obtained through calculation of weight data obtained by the weighing sensor and the bioelectrical impedance value of the human body acquired by the metal electrode plate.
Further, the body fat data of the human body is calculated as follows:
calculating the fat-free weight of the human body according to the weight data and the bioelectrical impedance value of the human body;
the calculation of the body weight without fat is shown in formula (1):
BF＝0.846×m-0.185×V-2.361×Sex (1)
wherein BF is the weight of degreaser, and the unit is Kg; m is weight data, and the unit is Kg; v is the bioelectrical impedance value in cm2/Ω；
Calculating the body fat rate of the human body according to the body weight data and the fat-free weight of the human body, wherein the body fat rate is calculated as shown in a formula (2):
μ＝(1-BF/m)×100％ (2)
wherein μ is a body fat percentage.
Further, the seat ring is provided with a seat surface and a bottom surface opposite to the seat surface, the weighing sensor is arranged on the bottom surface of the seat ring, and when a user sits on the seat ring, the weighing sensor senses and obtains weight data of the user.
Furthermore, the foot pad plate comprises a pedal support plate and a folding connection mechanism, wherein salient points with a massage effect and the metal electrode plates for extracting the biological characteristics of the human body are arranged on the upper surface of the pedal support plate;
and a connecting wire is arranged in the folding connecting mechanism and used for transmitting the human biological information signals collected by the metal electrode plates.
Furthermore, mounting holes are respectively formed in the top ends of the upper surfaces of the left side and the right side of the seat ring, one signal acquisition unit is arranged in each mounting hole and comprises a signal receiving electrode plate, the signal receiving electrode plate is arranged at the opening of each mounting hole in a covering mode, and a first operational amplifier A and a second operational amplifier A' are respectively arranged in the two mounting holes.
Furthermore, a wire through hole is respectively arranged in each of the left side edge and the right side edge of the seat ring, one end of each of the two wire through holes is respectively arranged at the bottom of the mounting hole, and the other end of each of the two wire through holes is respectively arranged at the joint of the seat ring and the seat cover;
one end of each of the two signal transmission lines is connected to the output end of the first operational amplifier A and the output end of the second operational amplifier A', and the other end of each of the two signal transmission lines is connected to a secondary differential amplification circuit;
the signal transmission line adopts a shielded cable.
The toilet cover with the body fat weight detection function comprises a seat ring and a foot pad plate which are provided with the body fat weight detection device, and the toilet cover further comprises a weak current signal acquisition circuit for acquiring electrocardiosignals of a human body;
the weak current signal acquisition circuit comprises two signal acquisition units, the two signal acquisition units comprise two signal receiving electrode plates and two operational amplifiers, the two operational amplifiers form a differential circuit, and the differential circuit further comprises a first feedback resistor R3A second feedback resistor R3' and a first feedback resistor R3And said second feedback resistance R3' between the two terminals.
Furthermore, the two signal receiving electrode plates are active electrode plates, and the two signal receiving electrode plates are used for receiving common-mode signals and differential-mode signals;
the negative feedback circuit is formed by a network component with frequency characteristics and composed of a single resistor or a plurality of electronic elements;
alternatively, the first and second electrodes may be,
the negative feedback circuit is composed of network components with all-pass, low-pass, high-pass, band-pass or band-stop frequency characteristics.
The toilet lid comprises a seat ring and a foot pad which are provided with the body fat weight detection device, and further comprises a full-isolation light path structure, wherein the full-isolation light path structure comprises a light isolation plate, a light emitting device and a light receiving device, the light emitting device and the light receiving device are separated by the light isolation plate, and the light isolation plate is used for blocking light from being transmitted between the light emitting device and the light receiving device.
Further, the light emitting device comprises a light emitter and an emitter light-transmitting sheet arranged above the light emitter; the light receiving device comprises a light receiver and a receiver light-transmitting sheet arranged above the light receiver;
the light blocking sheet is positioned between the light emitter and the light receiver and extends between the emitter light transmitting sheet and the receiver light transmitting sheet.
Further, the seat surface of the seat ring is provided with a light path mounting hole in a penetrating way, and the light emitting device and the light receiving device are mounted in the light path mounting hole;
light-blocking materials are filled in gaps among the light emitting device, the light receiving device and the mounting hole, and the light-blocking materials form the light-blocking plate;
the upper surface of the emitter light transmitting sheet, the upper surface of the receiver light transmitting sheet, and the upper surface of the light-blocking sheet are flush with the seat surface of the seat ring.
The beneficial technical effects are as follows:
1. in this patent document, when people use the closestool, the thigh with locate on the seat circle signal acquisition unit contact, simultaneously, both feet trample on the footplate, can pass through signal acquisition unit with on the footplate metal electrode piece gathers human biological characteristic information and weight data, can obtain human body fat information from this.
2. In this patent document, the seat circle is provided with two signal acquisition unit, two signal acquisition unit adopts the in-phase difference input mode as amplifier circuit's leading input electrode for the amplitude ratio of the differential mode signal that sends back level operational amplifier and common mode signal obtains improving, reaches the purpose that improves input signal's SNR, makes intelligent toilet lid can extract human electrocardiosignal more effectively.
3. In this patent document, the light shielding plate is disposed between the light emitting device and the light receiving device, and the light emitting device and the light receiving device respectively emit and receive light independently, so that interference of light emitted by the light emitting device to the light receiving device is avoided.
4. In this patent document, light emitting device with be provided with between the light receiving device separate the worn-out fur, make light emitting device with light receiving device's light path is kept apart completely, has avoided light that light emitting device emitted is to before human reflection light receiving device's interference, has improved the quality that thick fat position acquireed PPG signal.
Drawings
Fig. 1 is a schematic structural view of a toilet lid having a body fat weight detection function according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a structure of a body weight detection circuit of a device for detecting body fat according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a body impedance circuit of a device for detecting body fat according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a weak current signal acquisition circuit of a toilet lid according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a fully isolated optical path structure of a toilet lid according to an embodiment of the present invention.
Detailed Description
The present embodiment takes a device for detecting body fat weight and a toilet lid with body fat weight detection function as an example, and the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
Example 1
Referring to fig. 1, a device for detecting body fat and body weight according to an embodiment of the present invention is shown, and is installed on a seat ring 10 and a foot pad 30, wherein the seat ring 10 is provided with two signal acquisition units and a weighing sensor, and the weighing sensor is used for acquiring body weight data of a human body; the footplate 30 is provided with a metal electrode sheet 311, and the metal electrode sheet 311 and the signal acquisition unit are used for acquiring biological characteristic data of a human body.
The biological characteristic data comprises a bioelectrical impedance value of a human body, and body fat data of the human body can be obtained through calculation of weight data obtained by the weighing sensor and the bioelectrical impedance value of the human body acquired by the metal electrode plate.
Specifically, the footplate 30 is attached to the seat ring 10 and is foldably received in the seat ring 10.
Further, the seat ring 10 has a seat surface and a bottom surface opposite to the seat surface, and the load cell is provided on the bottom surface of the seat ring 10, and senses and obtains weight data of a user when the user is seated on the seat ring 10.
Further, the biological characteristic data comprises a bioelectrical impedance value of the human body, and the fat-free weight of the human body can be obtained by calculation according to the weight data and the bioelectrical impedance value of the human body;
the calculation of the body weight without fat is shown in formula (1):
BF＝0.846×m-0.185×V-2.361×Sex (1)
wherein BF is the weight of degreaser, and the unit is Kg; m is weight data, and the unit is Kg; v is the bioelectrical impedance value in cm2Omega; sex is gender, male ═ 1, female ═ 0;
calculating the body fat rate of the human body according to the body weight data and the fat-free weight of the human body, wherein the body fat rate is calculated as shown in a formula (2):
μ＝(1-BF/m)×100％ (2)
wherein μ is a body fat percentage.
Specifically, referring to fig. 2, the weight detection circuit adopts a CS1237 chip to implement analog-to-digital conversion of the weight data of the human body acquired by the weighing sensor.
Further, the footplate 30 comprises a pedal support plate 31 and a folding connection mechanism 32, wherein the upper surface of the pedal support plate 31 is provided with salient points with massage function and a metal electrode sheet 311 for extracting human biological characteristics, and a connection wire is arranged in the folding connection mechanism 32 and used for transmitting the human biological information signal collected by the metal electrode sheet 311.
Specifically, the bioelectrical impedance of the human body is obtained by releasing a current of a specific value to the human body between the signal acquisition unit on the seat ring 10 and the metal electrode sheet 311 on the footplate 30.
Specifically, referring to fig. 3, the human body impedance detection circuit adopts an AD5933 chip to realize the function of converting the impedance value of the human body.
Specifically, the body fat data of the human body can be obtained through calculation of the weight data of the human body obtained by the weighing sensor and the bioelectrical impedance value of the human body obtained by the signal acquisition unit and the metal electrode sheet 311.
Further, mounting holes 11 are respectively formed in the top ends of the upper surfaces of the left side and the right side of the seat ring 10, one signal acquisition unit is arranged in each mounting hole 11, each signal acquisition unit comprises a signal receiving electrode sheet 111, the signal receiving electrode sheet 111 is arranged at the opening of the mounting hole 11 in a covering manner, and a first operational amplifier a and a second operational amplifier a' are respectively installed in the two mounting holes 11.
Furthermore, a wire through hole is respectively arranged in each of the left and right side edges of the seat ring 10, one end of each of the two wire through holes is respectively arranged at the bottom of the mounting hole 11, the other end of each of the two wire through holes is respectively arranged at the joint of the seat ring 10 and the seat cover 20, a signal transmission line is respectively arranged in each of the two wire through holes, one end of each of the two signal transmission lines is respectively connected to the output ends of the first operational amplifier a and the second operational amplifier a', and the other end of each of the two signal transmission lines is respectively connected to a secondary differential amplification circuit; the signal transmission line adopts a shielded cable.
Specifically, the seat ring 10 mounted with the device for detecting body fat weight in the present embodiment may be mounted on a common toilet lid without heating and flushing functions, or may be mounted on an intelligent toilet lid having heating and flushing functions and a function of detecting physiological characteristic parameters (such as body fat parameters, body weight parameters, electrocardiographic signals, etc.) of a human body.
Specifically, the salient points on the pedal support plate 31 are used for massaging acupuncture points on the sole of the human body, so that a health care effect is achieved. The metal electrode sheet 311 is used for collecting biological characteristics of a human body, and realizes the function of measuring the body weight and body fat of the human body by the toilet lid 100.
In this embodiment, when a person uses the toilet, the thighs are in contact with the signal collecting unit disposed on the seat 10, and at the same time, the feet step on the footplate 30, so that the biological characteristic information and the weight data of the human body can be collected through the signal collecting unit and the metal electrode sheet 311 on the footplate 30, thereby obtaining the body fat information of the human body.
Example 2
The invention also discloses a toilet lid 100 with a body fat weight detection function, which comprises a seat ring 10 and a foot pad 30 which are provided with the body fat weight detection device, the toilet lid 100 further comprises a weak current signal acquisition circuit for acquiring electrocardiosignals of a human body, please refer to fig. 4, the weak current signal acquisition circuit comprises two signal acquisition units, the two signal acquisition units comprise two signal receiving electrode plates 111 and two operational amplifiers, the two operational amplifiers form a differential circuit, and the differential circuit further comprises a first feedback resistor R3A second feedback resistor R3' and a first feedback resistor R3And said second feedback resistance R3' between the two terminals.
Further, the two signal receiving electrode pads 111 are active electrode pads, and the two signal receiving electrode pads 111 are used for receiving common mode signals and differential mode signals; the negative feedback circuit is formed by a network component with frequency characteristics and composed of a single resistor or a plurality of electronic elements; alternatively, the negative feedback circuit is formed by network components having all-pass, low-pass, high-pass, band-pass or band-stop frequency characteristics.
Specifically, the toilet lid 100 mounted with the weak current signal acquisition circuit in the present embodiment includes both a general toilet lid 100 without heating and flushing functions and an intelligent toilet lid 100 with heating and flushing functions.
Specifically, the toilet lid 100 with the weak current signal acquisition circuit can acquire electrocardiosignals of legs of a human body when people use the toilet, and can effectively extract the electrocardiosignals of the human body even in dry winter.
In this embodiment, the weak current signal acquisition circuit reduces the interference of external electric signals to the signal acquisition unit, and improves the accuracy of the system in acquiring human electrocardiosignals.
Example 3
The invention also discloses a toilet lid 100 with a body fat weight detection function, which comprises a seat ring 10 provided with the body fat weight detection device and a foot pad 30, and the toilet lid 100 further comprises a full-isolation light path structure, please refer to fig. 5, wherein the full-isolation light path structure comprises a light isolation plate 123, and a light emitting device 121 and a light receiving device 122 which are separated by the light isolation plate 123, and the light isolation plate 123 is used for blocking light from transmitting between the light emitting device 121 and the light receiving device 122.
Further, the light emitting device 121 includes a light emitter 1211 and an emitter light transmitting sheet 1212 disposed above the light emitter 1211; the light receiving device 122 includes a light receiver 1221 and a receiver light-transmitting sheet 1222 disposed above the light receiver 1221; the light blocking plate 123 is positioned between the light emitter 1211 and the light receiver 1221 and extends between the emitter light transmitting sheet 1212 and the receiver light transmitting sheet 1222.
Further, the seat surface of the seat ring 10 is provided with an optical path mounting hole 12, the light emitting device 121 and the light receiving device 122 are mounted in the optical path mounting hole 12, and a light blocking material is filled in a gap between the light emitting device 121, the light receiving device 122 and the mounting hole 11, and forms the light blocking plate 123; the upper surfaces of the transmitter light transmitting piece 1212, the receiver light transmitting piece 1222, and the light blocking plate 123 are flush with the seating surface of the seat 10.
Specifically, the toilet lid 100 of the present embodiment, which employs the structure of the fully isolated optical path, includes both the general toilet lid 100 without heating and flushing functions and the intelligent toilet lid 100 with heating and flushing functions.
Specifically, the light shielding plate 123 completely isolates the light emitting device 121 and the light receiving device 122, so that the light emitted by the light emitter 1211 is not transmitted to the light receiver 1221 through a common light guide plate, and the interference light signal received by the light receiver 1221 is reduced.
Preferably, the light-blocking material is a metal material or other light-proof material.
In this embodiment, the light shielding plate 123 completely isolates the light emitting device 121 and the light receiving device 122, so as to avoid interference of light emitted by the light emitting device 121 with the light receiving device 122.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art can make various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A device capable of detecting body fat weight is arranged on a seat ring and a foot cushion plate, and is characterized in that the seat ring is provided with two signal acquisition units and a weighing sensor, and the weighing sensor is used for acquiring body weight data of a human body;
the foot pad plate is provided with a metal electrode plate, and the metal electrode plate and the signal acquisition unit are used for acquiring biological characteristic data of a human body;
the biological characteristic data comprises a bioelectrical impedance value of a human body, and body fat data of the human body can be obtained through calculation of weight data obtained by the weighing sensor and the bioelectrical impedance value of the human body acquired by the metal electrode plate.
2. The apparatus of claim 1, wherein the body fat data of the human body is calculated as follows:
calculating the fat-free weight of the human body according to the weight data and the bioelectrical impedance value of the human body;
the calculation of the body weight without fat is shown in formula (1):
BF＝0.846×m-0.185×V-2.361×Sex (1)
wherein BF is the weight of degreaser, and the unit is Kg; m is weight data, and the unit is Kg; v is the bioelectrical impedance value in cm2/Ω；
Calculating the body fat rate of the human body according to the body weight data and the fat-free weight of the human body, wherein the body fat rate is calculated as shown in a formula (2):
μ＝(1-BF/m)×100％ (2)
wherein μ is a body fat percentage.
3. The device as claimed in claim 1, wherein the footplate comprises a pedal support plate and a folding connection mechanism, wherein the upper surface of the pedal support plate is provided with salient points with a massage function and the metal electrode plates for extracting the biological characteristics of the human body;
and a connecting wire is arranged in the folding connecting mechanism and used for transmitting the human biological information signals collected by the metal electrode plates.
4. The apparatus according to claim 1, wherein the seat ring has a mounting hole near the top of the upper surface on each of the left and right sides, a signal collecting unit is disposed in each mounting hole, the signal collecting unit includes a signal receiving electrode sheet, the signal receiving electrode sheet is covered at the opening of the mounting hole, and a first operational amplifier a and a second operational amplifier a' are respectively disposed in the two mounting holes.
5. The device as claimed in claim 4, wherein a wire through hole is formed in each of the left and right sides of the seat ring, one end of each of the two wire through holes is formed at the bottom of the mounting hole, and the other end of each of the two wire through holes is formed at the connection between the seat ring and the seat cover;
one end of each of the two signal transmission lines is connected to the output end of the first operational amplifier A and the output end of the second operational amplifier A', and the other end of each of the two signal transmission lines is connected to a secondary differential amplification circuit;
the signal transmission line adopts a shielded cable.
6. A toilet lid with body fat weight detection function, comprising a seat ring and a foot pad of a device capable of detecting body fat weight according to any one of claims 1 to 5, wherein the toilet lid further comprises a weak current signal acquisition circuit for acquiring electrocardiosignals of a human body;
the weak current signal acquisition circuit comprises two signal acquisition units, the two signal acquisition units comprise two signal receiving electrode plates and two operational amplifiers, the two operational amplifiers form a differential circuit, and the differential circuit further comprises a first feedback resistor R3A second feedback resistor R3' and a first feedback resistor R3And said second feedback resistance R3' between the two terminals.
7. The toilet lid according to claim 6, wherein the two signal receiving electrode pads are active electrode pads, and the two signal receiving electrode pads are configured to receive a common mode signal and a differential mode signal;
the negative feedback circuit is formed by a network component with frequency characteristics and composed of a single resistor or a plurality of electronic elements;
alternatively, the first and second electrodes may be,
the negative feedback circuit is composed of network components with all-pass, low-pass, high-pass, band-pass or band-stop frequency characteristics.
8. A toilet lid with body fat weight detecting function, comprising a seat ring and a foot pad provided with a body fat weight detecting device as claimed in any one of claims 1 to 5, wherein the toilet lid further comprises a full-isolation light path structure, the full-isolation light path structure comprises a light-isolating plate and a light-emitting device and a light-receiving device which are separated by the light-isolating plate, and the light-isolating plate is used for blocking light from transmitting between the light-emitting device and the light-receiving device.
9. The toilet lid according to claim 8, wherein the light emitting device comprises a light emitter and an emitter light transmitting sheet disposed over the light emitter;
the light receiving device comprises a light receiver and a receiver light-transmitting sheet arranged above the light receiver; the light blocking sheet is positioned between the light emitter and the light receiver and extends between the emitter light transmitting sheet and the receiver light transmitting sheet.
10. The toilet cover according to claim 9, wherein the seat surface of the seat is formed with a light path mounting hole through which the light emitting device and the light receiving device are mounted;
light-blocking materials are filled in gaps among the light emitting device, the light receiving device and the mounting hole, and the light-blocking materials form the light-blocking plate;
the upper surface of the emitter light transmitting sheet, the upper surface of the receiver light transmitting sheet, and the upper surface of the light-blocking sheet are flush with the seat surface of the seat ring.
CN202010314537.0A 2020-04-20 2020-04-20 Device capable of detecting body fat weight and toilet lid with body fat weight detection function Pending CN111419231A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112971575A (en) * 2021-02-17 2021-06-18 蔡宗新 Intelligent closestool with response health status function
CN113520204A (en) * 2021-07-20 2021-10-22 安徽华米信息科技有限公司 Method for detecting sitting of toilet seat, and storage medium
WO2021213150A1 (en) * 2020-04-20 2021-10-28 广州易风健康科技股份有限公司 Weak current signal acquisition circuit, and seat and seat cover having same
WO2021213149A1 (en) * 2020-04-20 2021-10-28 广州易风健康科技股份有限公司 Fully-isolated light path structure, and seat and toilet lid using fully-isolated light path structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021213150A1 (en) * 2020-04-20 2021-10-28 广州易风健康科技股份有限公司 Weak current signal acquisition circuit, and seat and seat cover having same
WO2021213149A1 (en) * 2020-04-20 2021-10-28 广州易风健康科技股份有限公司 Fully-isolated light path structure, and seat and toilet lid using fully-isolated light path structure
CN112971575A (en) * 2021-02-17 2021-06-18 蔡宗新 Intelligent closestool with response health status function
CN113520204A (en) * 2021-07-20 2021-10-22 安徽华米信息科技有限公司 Method for detecting sitting of toilet seat, and storage medium

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