CN109374101A - A kind of human body balance, circuit and method that weighing repeatability can be improved - Google Patents
A kind of human body balance, circuit and method that weighing repeatability can be improved Download PDFInfo
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- CN109374101A CN109374101A CN201811434232.2A CN201811434232A CN109374101A CN 109374101 A CN109374101 A CN 109374101A CN 201811434232 A CN201811434232 A CN 201811434232A CN 109374101 A CN109374101 A CN 109374101A
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- 238000005303 weighing Methods 0.000 title claims abstract description 208
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 5
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- 238000010586 diagram Methods 0.000 description 2
- 238000004153 renaturation Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
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- 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
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Abstract
The present invention is applicable in human body balance technical field, provide a kind of human body balance, circuit and method that weighing repeatability can be improved, human body scale includes ontology and bearing plate, ontology is equipped with weighing measurement device, weighing measurement device includes the multiple weighing sensors of setting on the body, and the modulus conversion chip connecting with multiple weighing sensors；Bearing plate is located above the weighing end of multiple weighing sensors；Weighing measurement device is connected with microprocessor, microprocessor is arranged on the body, difference AD value of multiple weighing sensors under different conditions for being exported according to modulus conversion chip, the total weight of human body is calculated using difference AD value of multiple weighing sensors under different conditions, to improve the weighing repeatability of human body balance, a kind of simplification, convenient human body balance are provided for user.
Description
Technical field
The invention belongs to human body balance technical field more particularly to it is a kind of can be improved weighing repeatability human body balance, circuit and
Method.
Background technique
In conventional domestic human body balance application field, an existing pain spot is exactly the weight weighed to human body balance in application process
Renaturation is poor, and continuous scale measurement weight upper several times, the weight value difference of output are frequently encountered in the application process of human body balance
Larger situation seriously affects the weighing experience of user；The reason of causing this phenomenon is the sensor measurement in the design of scale body
End theoretically needs the linear completely the same of four and half bridge sensors, can accurately just reflect actual weight；But under actual conditions,
Due to the difference of the critical materials such as electronic load cell elastomer and resistance strain gage, and the error of installation is manufactured,
The absolute sensitivity of each sensor will be different, and the different location of scale body is caused to apply the identical title for weighing, obtaining
Weight values also can be different, when resulting in scale in repetition, because the scale body position stood is different, the weighing value of display caused to have error.
The traditional way of industry is that the sensor for selecting the linearity close as far as possible when assembling human body balance carries out linearly at present
Degree matching, reduces the influence of scale body unbalance loading；Such way is that not can solve by installation process bring error, followed by first
Time and cost need to be spent to go to carry out the linearity matching of sensor.
Summary of the invention
The purpose of the present invention is to provide a kind of human body balance, circuit and methods that weighing repeatability can be improved, it is intended to solve
Less reproducible problem, can not provide a kind of human body that weighing repeatability effectively can be improved when due to prior art weighing
Scale.
On the one hand, the present invention provides a kind of human body balances, comprising:
Ontology and bearing plate, which is characterized in that the ontology is equipped with weighing measurement device, the weighing measurement device packet
Include the multiple weighing sensors of setting on the body, and the analog-to-digital conversion core connecting with multiple weighing sensors
Piece；The bearing plate is located above the weighing end of multiple weighing sensors；The weighing measurement device is connected with micro process
Device, on the body, multiple weighings for being exported according to the modulus conversion chip pass for the microprocessor setting
Difference AD value of the sensor under different conditions is calculated using difference AD value of multiple weighing sensors under different conditions
The total weight of human body.
Preferably, the human body balance further includes the display unit connecting with the microprocessor, the display unit installation
On the body, for show the weight that each weighing sensor born, the total weight of the human body, battery electricity
Amount, the degree of balance of human body and calibration state.
Preferably, the ontology is rectangular-shape or cube-shaped；Multiple weighing sensors include that the first weighing passes
Sensor, the second weighing sensor, third weighing sensor and the 4th weighing sensor；First weighing sensor is located at described
The northeast Angle Position of ontology, second weighing sensor are located at the northwest Angle Position of the ontology, the third weighing and sensing
Device is located at the southwestern Angle Position of the ontology, and the 4th weighing sensor is located at the southeast Angle Position of the ontology.
On the other hand, the present invention provides a kind of circuits of the raising weighing repeatability of human body balance, including multiple titles
Retransmit sensor and the modulus conversion chip and reference circuit, which is characterized in that multiple weighing sensors include setting
In the first weighing sensor of the ontology northeast corner, the second weighing sensor of the ontology northwest corner is set, setting exists
The third weighing sensor of the southwest corner of the ontology and be arranged in the ontology southeast corner the 4th weighing sensor；
The first end of first weighing sensor and second weighing sensor is connect with the anode of power supply, described
The second end of first weighing sensor is connected with first resistor, the cathode company of the other end of the first resistor and the power supply
It connects, the second end of second weighing sensor is connected with second resistance, the other end of the second resistance and the power supply
Cathode connection；
The first end of the third weighing sensor is connected with 3rd resistor, the other end of the 3rd resistor and the electricity
The anode connection in source, the second end of the third weighing sensor are connect with the cathode of the power supply, the 4th weighing and sensing
Device first end is connected with the 4th resistance, and the other end of the 4th resistance is connect with the anode of the power supply, the 4th weighing
The second end of sensor is connect with the cathode of the power supply；The reference circuit includes the 5th resistance and the 6th resistance, and described the
The anode of one end of five resistance and the power supply is connect, and the other end is connect with the 6th resistance, the 6th resistance it is another
End is connect with the cathode of the power supply.
Preferably, multiple weighing sensors are strain gauge pressure sensor；First weighing sensor and
The second end of second weighing sensor is connect with the modulus conversion chip, the third weighing sensor and described
The first end of four weighing sensors is connect with the modulus conversion chip；The other end and the modulus of 5th resistance turn
Change circuit connection.
On the other hand, the present invention provides a kind of methods for improving weighing repeatability, which comprises
Calculate the variable quantity of the difference AD value of each differential pair；It is calculated according to the difference AD value variable quantity of each differential pair
The total weight of human body out.
It is further preferred that before the step of calculating the variable quantity of the difference AD value of each differential pair further include:
It is poor that the measuring signal that first weighing sensor and the third weighing sensor are exported is set as first
Point pair, the measuring signal that the third weighing sensor and second weighing sensor are exported is set as the second difference
It is right, the measuring signal that second weighing sensor and the 4th weighing sensor are exported is set as third differential pair,
And it is by the measuring signal that the 4th weighing sensor is exported and the reference signal sets that the reference circuit is exported
4th differential pair.
Preferably, the step of calculating the variable quantity of the difference AD value of each differential pair include:
The difference AD value of first differential pair when by the human body balance zero load is set as Z1, by second differential pair
Difference AD value be set as Z2, the difference AD value of the third differential pair is set as Z3, by the difference of the 4th differential pair
AD value is set as Z4；
The difference AD value for applying first differential pair after load to the human body balance is set as L1, by described second
The difference AD value of differential pair is set as L2, the difference AD value of the third differential pair is set as L3, by the 4th differential pair
Difference AD value be set as L4；
The variable quantity of the difference AD value of each differential pair is respectively as follows:
L1-Z1=N1；L2-Z2=N2；L3-Z3=N3；L4-Z4=N4；Wherein, N1 is the difference of first differential pair
The variable quantity of AD value, N2 are the variable quantity of the difference AD value of second differential pair, and N3 is the difference AD of the third differential pair
The variable quantity of value, N4 are the variable quantity of the difference AD value of the 4th differential pair.
Preferably, the step of calculating the total weight of human body according to the difference AD value variable quantity of each differential pair include:
According to formula W=K1* (N1+N3-N2-N4)+K2* (N2+N4-N3)+K3* (N3-N4)+K4*N4, the people is obtained
The total weight of body, wherein K1 is the yield value of first weighing sensor, and K2 is the gain of second weighing sensor
Value, K3 are the yield value of the third weighing sensor, and K4 is the yield value of the 4th weighing sensor, and W is the human body
Total weight.
It is further preferred that can also be calculated in order in the variable quantity of difference AD value for calculating each differential pair
The variable quantity of the difference AD value of first differential pair, the variable quantity of the difference AD value of the third differential pair and described second poor
Point pair difference AD value variable quantity and the 4th differential pair difference AD value variable quantity.
Human body balance provided by the invention, including ontology and bearing plate, ontology are equipped with weighing measurement device, weighing measurement dress
It sets including multiple weighing sensors on the body, and the modulus conversion chip connecting with multiple weighing sensors are arranged；It holds
Weight plate is located above the weighing end of multiple weighing sensors；Weighing measurement device is connected with microprocessor, and microprocessor setting exists
On ontology, difference AD value of multiple weighing sensors under different conditions for being exported according to modulus conversion chip, using more
Difference AD value of a weighing sensor under different conditions calculates the total weight of human body, to improve the weighing weight of human body balance
Renaturation provides a kind of simplification, convenient human body balance for user.
Detailed description of the invention
Fig. 1 is the topology example figure for the human body balance that the embodiment of the present invention one provides；
Fig. 2 is the priority structure schematic diagram for the human body balance that the embodiment of the present invention one provides；
Fig. 3 is the circuit diagram of the raising weighing repeatability of human body balance provided by Embodiment 2 of the present invention；
Fig. 4 is the method implementation flow chart for the raising weighing repeatability that the embodiment of the present invention three provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Embodiment one:
The structure that Fig. 1 shows the human body balance of the offer of the embodiment of the present invention one illustrates only and this hair for ease of description
The relevant part of bright embodiment, details are as follows:
Human body balance provided in an embodiment of the present invention includes ontology 1 and bearing plate (not shown), is arranged on ontology 1
Weighing measurement device 2, weighing measurement device 2 include the multiple weighing sensors being arranged on ontology 1；
As shown in Fig. 2, multiple weighing sensors include the first weighing sensor S1 that 1 northeast corner of ontology is arranged in, setting
The second weighing sensor S2 in 1 northwest corner of ontology, the third weighing sensor S3 and setting that the southwest corner of ontology 1 is arranged in exist
4th weighing sensor S4 of the southeast corner of ontology 1, to measure the weight that position different on bearing plate is born；Weighing measurement
Device 2 further includes the modulus conversion chip U1 connecting with multiple weighing sensors, the simulation for being exported weighing sensor
Signal is converted into digital signal, to meet the use demand of other circuits；
The microprocessor U2 connecting with weighing measurement device 2 is additionally provided on ontology 1, for exporting according to modulus conversion chip
Difference AD value of multiple weighing sensors under different conditions, utilize difference AD of multiple weighing sensors under different conditions
Value calculates the total weight of human body；
It is further preferred that being additionally provided with the display unit 3 connecting with microprocessor U2 on ontology 1, display unit 3 is
LED display or LCD display can also be battle array panel module, for showing weight, people that each weighing sensor born
The total weight of body, the electricity of battery, the degree of balance of human body and calibration state.
Human body balance provided by the invention, including ontology 1 and bearing plate, ontology 1 are equipped with weighing measurement device 2, and weighing is surveyed
Amount device 2 includes the multiple weighing sensors being arranged on ontology 1, and the analog-to-digital conversion core connecting with multiple weighing sensors
Piece U1；Bearing plate is located above the weighing end of multiple weighing sensors；Weighing measurement device 2 is connected with microprocessor U2, micro- place
Manage multiple weighing sensors difference under different conditions of the device U2 setting on ontology 1, for exporting according to modulus conversion chip
Divide AD value, the total weight of human body is calculated using difference AD value of multiple weighing sensors under different conditions, to improve
The weighing repeatability of human body balance, provides a kind of simplification, convenient human body balance for user.
Embodiment two:
Fig. 3 is the circuit of the raising weighing repeatability of human body balance provided by Embodiment 2 of the present invention, for ease of description, only
Part related to the embodiment of the present invention is shown, details are as follows:
Including multiple weighing sensors and modulus conversion chip U1 and reference circuit 4, multiple weighing sensors include setting
The first weighing sensor S1 in 1 northeast corner of ontology is set, the second weighing sensor S2 of 1 northwest corner of ontology is set, setting exists
The third weighing sensor S3 of the southwest corner of ontology 1 and be arranged in ontology 1 southeast corner the 4th weighing sensor S4, with measurement
The weight that four angles of scale are born；
The first end of first weighing sensor S1 and the second weighing sensor S2 are connect with the anode of power supply, the first weighing
The second end of sensor S1 is connected with first resistor R1, and the other end of first resistor R1 and the cathode of power supply connect, the second weighing
The second end of sensor S2 is connected with second resistance R2, and the other end of second resistance R2 and the cathode of power supply connect, third weighing
The first end of sensor S3 is connected with 3rd resistor R3, and the other end of 3rd resistor R3 and the anode of power supply connect, third weighing
The cathode of the second end of sensor S3 and power supply connects, and the 4th weighing sensor S4 first end is connected with the 4th resistance R4, and the 4th
The other end of resistance R4 and the anode of power supply connect, and the second end of the 4th weighing sensor S4 and the cathode of power supply connect；Both two
A weighing sensor backward chaining forms differential pair, it can thus be appreciated that the variable quantity of difference AD value of each differential pair in weighing is
The summation of the variable quantity of the difference AD value of two weighing sensors；
Reference circuit 4 includes that the resistance value of the 5th resistance R5 and the 6th resistance R6, the 5th resistance R5 and the 6th resistance R6 are
One end of 1K, the 5th resistance R5 and the anode of power supply connect, and the other end is connect with the 6th resistance R6, the other end of the 6th resistance R6
It is connect with the cathode of power supply, the other end of the 5th resistance R5 is connect with analog to digital conversion circuit U1, the use of reference circuit 4 is that weighing passes
Sensor provides compensation, and to improve the accuracy of measurement, circuit structure is simple, at low cost；
Multiple weighing sensors are strain gauge pressure sensor；First weighing sensor S1 and the second weighing sensor
The first end that the second end of S2 connect U1, third weighing sensor S3 and the 4th weighing sensor S4 with modulus conversion chip is equal
It is connect with modulus conversion chip U1；Using strain-gauge transducer so that measurement accuracy is high, measurement range is wide, and the service life is long, knot
Structure is simple, good frequency response, can work under severe conditions, small in size, to reduce the overall volume of scale.
Embodiment three:
Fig. 4 is the method implementation process for the raising weighing repeatability that the embodiment of the present invention three provides, for ease of description, only
Part related to the embodiment of the present invention is shown, including:
In step S401, by the first weighing sensor, the second weighing sensor, third weighing sensor, the 4th weighing
Sensor and reference circuit are connected to form multiple differential pairs two-by-two.
In the embodiment of the present invention, the measuring signal that the first weighing sensor and third weighing sensor are exported is set as
The measuring signal that third weighing sensor and the second weighing sensor are exported is set as the second differential pair by the first differential pair,
The measuring signal that second weighing sensor and the 4th weighing sensor are exported is set as third differential pair, and the 4th is claimed
Retransmitting the measuring signal that sensor is exported and the reference signal sets that reference circuit is exported is the 4th differential pair.
In step S402, the variable quantity of the difference AD value of each differential pair is calculated.
In the embodiment of the present invention, the difference AD value of the first differential pair when by human body balance zero load is set as Z1, poor by second
Point pair difference AD value be set as Z2, the difference AD value of third differential pair is set as Z3, by the difference AD value of the 4th differential pair
It is set as Z4；
The difference AD value for applying the first differential pair after load to human body balance is set as L1, by the difference of the second differential pair
AD value is set as L2, and the difference AD value of third differential pair is set as L3, the difference AD value of the 4th differential pair is set as L4；
The variable quantity of the difference AD value of each differential pair is respectively as follows:
L1-Z1=N1；L2-Z2=N2；L3-Z3=N3；L4-Z4=N4；Wherein, N1 is the difference AD value of the first differential pair
Variable quantity, N2 be the second differential pair difference AD value variable quantity, N3 be third differential pair difference AD value variable quantity, N4
For the variable quantity of the difference AD value of the 4th differential pair.
In step S403, the total weight of human body is calculated according to the difference AD value variable quantity of each differential pair.
In embodiments of the present invention, the total weight of human body is obtained according to weight operational formula, weight operational formula is W=
K1* (N1+N3-N2-N4)+K2* (N2+N4-N3)+K3* (N3-N4)+K4*N4, wherein K1 is the gain of the first weighing sensor
Value, K2 are the yield value of the second weighing sensor, and K3 is the yield value of third weighing sensor, and K4 is the 4th weighing sensor
Yield value, W are the total weight of human body.
Preferably, it can be seen that from weight operational formula, the variable quantity and third of the difference AD value N1 of the first differential pair is poor
Point pair difference AD value variable quantity N3 it is shared in weight operation weight it is larger, as shown in Fig. 2, the first of the first differential pair claims
Re-transmission sensor S1 and third weighing sensor S3 is diagonal setting, and the second weighing sensor S2 of third differential pair and the 4th claims
Sensor S4 is retransmitted as diagonally opposing corner installation, it is further preferred that in the variable quantity of difference AD value for calculating each differential pair, also
The variable quantity of the difference AD value of the first differential pair, the variable quantity and second of the difference AD value of third differential pair can be calculated in order
The variable quantity of the difference AD value of the variable quantity and the 4th differential pair of the difference AD value of differential pair, so that small shaking when weighing
Very big buffering is obtained, the accurate fixed of measurement is improved, to improve the repeatability of weighing；It is larger that weight is preferentially calculated in weighing
Two differential pairs difference AD value variable quantity, and guarantee two differential pairs continuously to measure, to minimize time factor pair
The precision of weighing influences.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of human body balance, including ontology and bearing plate, which is characterized in that the ontology is equipped with weighing measurement device, described
Weighing measurement device includes the multiple weighing sensors of setting on the body, and is connect with multiple weighing sensors
Modulus conversion chip；The bearing plate is located above the weighing end of multiple weighing sensors；The weighing measurement device
It is connected with microprocessor, the microprocessor setting is on the body, more for exporting according to the modulus conversion chip
Difference AD value of a weighing sensor under different conditions, utilizes difference of multiple weighing sensors under different conditions
The total weight for dividing AD value to calculate human body.
2. human body balance as described in claim 1, which is characterized in that the human body balance further includes connecting with the microprocessor
Display unit, display unit installation on the body, for show weight that each weighing sensor born,
The total weight of the human body, the electricity of battery, the degree of balance of human body and calibration state.
3. human body balance as described in claim 1, which is characterized in that the ontology is rectangular-shape or cube-shaped；Multiple institutes
Stating weighing sensor includes the first weighing sensor, the second weighing sensor, third weighing sensor and the 4th weighing sensor；
First weighing sensor is located at the northeast Angle Position of the ontology, and second weighing sensor is located at the west of the ontology
Beijiao position, the third weighing sensor are located at the southwestern Angle Position of the ontology, and the 4th weighing sensor is located at institute
State the southeast Angle Position of ontology.
4. a kind of circuit of the raising weighing repeatability based on human body balance described in claim 1, including multiple weighings pass
Sensor and the modulus conversion chip and reference circuit, which is characterized in that multiple weighing sensors include being arranged in institute
The second weighing sensor of the ontology northwest corner is arranged in the first weighing sensor for stating ontology northeast corner, is arranged described
The third weighing sensor of the southwest corner of ontology and be arranged in the ontology southeast corner the 4th weighing sensor；
The first end of first weighing sensor and second weighing sensor is connect with the anode of power supply, and described first
The second end of weighing sensor is connected with first resistor, and the other end of the first resistor is connect with the cathode of the power supply, institute
The second end for stating the second weighing sensor is connected with second resistance, the cathode company of the other end of the second resistance and the power supply
It connects；
The first end of the third weighing sensor is connected with 3rd resistor, the other end of the 3rd resistor and the power supply
Anode connection, the second end of the third weighing sensor connect with the cathode of the power supply, the 4th weighing sensor the
One end is connected with the 4th resistance, and the other end of the 4th resistance is connect with the anode of the power supply, the 4th weighing and sensing
The second end of device is connect with the cathode of the power supply；The reference circuit includes the 5th resistance and the 6th resistance, the 5th electricity
The anode of one end of resistance and the power supply connect, and the other end is connect with the 6th resistance, the other end of the 6th resistance and
The cathode of the power supply connects.
5. the as claimed in claim 4 circuit for improving weighing repeatability, which is characterized in that multiple weighing sensors are
Strain gauge pressure sensor；The second end of first weighing sensor and second weighing sensor with the modulus
Conversion chip connection, the first end of the third weighing sensor and the 4th weighing sensor with the analog-to-digital conversion core
Piece connection；The other end of 5th resistance is connect with analog-digital conversion circuit as described.
6. a kind of method based on the circuit of raising weighing repeatability described in claim 4-5 characterized by comprising
Calculate the variable quantity of the difference AD value of each differential pair；People is calculated according to the difference AD value variable quantity of each differential pair
The total weight of body.
7. the method as claimed in claim 6 for improving weighing repeatability, which is characterized in that calculate the difference of each differential pair
Before the step of variable quantity of AD value further include:
The measuring signal that first weighing sensor and the third weighing sensor are exported is set as the first differential pair,
The measuring signal that the third weighing sensor and second weighing sensor are exported is set as the second differential pair, by institute
It states the measuring signal that the second weighing sensor and the 4th weighing sensor are exported and is set as third differential pair, and by institute
It states the measuring signal that the 4th weighing sensor is exported and the reference signal sets that the reference circuit is exported is the 4th difference
It is right.
8. the method as claimed in claim 7 for improving weighing repeatability, which is characterized in that calculate the difference of each differential pair
The step of variable quantity of AD value includes:
The difference AD value of first differential pair when by the human body balance zero load is set as Z1, by the difference of second differential pair
Divide AD value to be set as Z2, the difference AD value of the third differential pair is set as Z3, by the difference AD value of the 4th differential pair
It is set as Z4；
The difference AD value for applying first differential pair after load to the human body balance is set as L1, by second difference
Pair difference AD value be set as L2, the difference AD value of the third differential pair is set as L3, by the difference of the 4th differential pair
AD value is divided to be set as L4；
The variable quantity of the difference AD value of each differential pair is respectively as follows:
L1-Z1=N1；L2-Z2=N2；L3-Z3=N3；L4-Z4=N4；Wherein, N1 is the difference AD value of first differential pair
Variable quantity, N2 is the variable quantity of the difference AD value of second differential pair, and N3 is the difference AD value of the third differential pair
Variable quantity, N4 are the variable quantity of the difference AD value of the 4th differential pair.
9. the method as claimed in claim 8 for improving weighing repeatability, which is characterized in that according to the difference AD of each differential pair
Value variable quantity calculates the step of total weight of human body and includes:
According to formula W=K1* (N1+N3-N2-N4)+K2* (N2+N4-N3)+K3* (N3-N4)+K4*N4, the human body is obtained
Total weight, wherein K1 is the yield value of first weighing sensor, and K2 is the yield value of second weighing sensor, K3
For the yield value of the third weighing sensor, K4 is the yield value of the 4th weighing sensor, and W is the gross weight of the human body
Amount.
10. the method as claimed in claim 8 for improving weighing repeatability, which is characterized in that calculating each differential pair
When the variable quantity of difference AD value, the variable quantity of the difference AD value of first differential pair, the third can also be calculated in order
The variable quantity and the 4th differential pair of the difference AD value of the variable quantity and second differential pair of the difference AD value of differential pair
Difference AD value variable quantity.
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| CN201811434232.2A CN109374101B (en) | 2018-11-28 | 2018-11-28 | Human body scale, circuit and method capable of improving weighing repeatability |
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| CN201811434232.2A CN109374101B (en) | 2018-11-28 | 2018-11-28 | Human body scale, circuit and method capable of improving weighing repeatability |
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| CN204535844U (en) * | 2015-05-05 | 2015-08-05 | 北京康智乐思网络科技有限公司 | Intelligent weight scale |
| CN107966193A (en) * | 2017-11-02 | 2018-04-27 | 广东乐心医疗电子股份有限公司 | Electronic scale capable of measuring in divided mode |
| CN109489789A (en) * | 2018-11-20 | 2019-03-19 | 芯海科技（深圳）股份有限公司 | A kind of scale and method of measurable quadrangle weight value |
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2018
- 2018-11-28 CN CN201811434232.2A patent/CN109374101B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012145389A (en) * | 2011-01-11 | 2012-08-02 | Tanita Corp | Weighing machine |
| CN204535844U (en) * | 2015-05-05 | 2015-08-05 | 北京康智乐思网络科技有限公司 | Intelligent weight scale |
| CN107966193A (en) * | 2017-11-02 | 2018-04-27 | 广东乐心医疗电子股份有限公司 | Electronic scale capable of measuring in divided mode |
| CN109489789A (en) * | 2018-11-20 | 2019-03-19 | 芯海科技（深圳）股份有限公司 | A kind of scale and method of measurable quadrangle weight value |
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| CN109374101B (en) | 2024-08-20 |
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