CN211401393U - Human body scale capable of achieving rapid and high-precision measurement - Google Patents
Human body scale capable of achieving rapid and high-precision measurement Download PDFInfo
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- CN211401393U CN211401393U CN202020322851.9U CN202020322851U CN211401393U CN 211401393 U CN211401393 U CN 211401393U CN 202020322851 U CN202020322851 U CN 202020322851U CN 211401393 U CN211401393 U CN 211401393U
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Abstract
The utility model discloses a quick high accuracy measurement's human body scale, comprising a bottom shell, be equipped with the sensor mounting groove in the drain pan, the joint has the fixed lid in the sensor mounting groove, be equipped with the sensor fixed bolster between fixed lid and the sensor mounting groove, the upper end fixedly connected with sensor of sensor fixed bolster, be equipped with the spring between sensor and the fixed lid, the top of fixed lid is equipped with glass panels, the drain pan internal fixation has the mainboard. This quick high accuracy measuring human scale passes through AD value filter and filters current AD acquisition value, filters the interference that other factors influence, obtains accurate AD acquisition value, through to current AD value change scope and stable count, whether quick judgement current state is stable, and the weight value conversion is then carried out to stability, reaches quick high accuracy collection effect, on the basis of the above-mentioned setting, human scale can reach stable state in 2-3 seconds after the people calls, obtains high-accuracy stable weight measured value.
Description
Technical Field
The utility model relates to a relevant technical field of weight measuring equipment specifically is a quick high accuracy measurement's human scale.
Background
The work flow of the existing human body scale is generally as follows: when an object is placed on the scale plate, pressure is applied to the sensor, the sensor deforms, so that impedance changes, meanwhile, excitation voltage changes, a changed analog signal is output, the signal is amplified by the amplifying circuit and output to the analog-to-digital converter, the signal is converted into a digital signal convenient to process and output to the CPU for operation control, and the CPU outputs a weight measurement result to the display according to a measurement algorithm program, so that the weight of a human body is displayed.
The accuracy and efficiency of weight measurement determine the product experience, if the weight measurement result obtained by the measurement algorithm is far from the actual human body weight, the weight measurement result cannot be used as the reference for measuring the human body scale, the product significance is lost, and if the weight measurement process is slow, the product experience is poor. It is actually necessary to design a human body scale capable of measuring rapidly and with high precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick high accuracy measurement's human scale to the weight measurement result that proposes current weight measurement algorithm and reachs among the above-mentioned background art is very far away with actual human body weight, will unable regard as human body scale measuring reference, and the disappearance product is meaningful, and the weight measurement process is slower, and the problem that the product experience sense is poor.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick high accuracy measuring human body scale, includes the drain pan, be equipped with the sensor mounting groove in the drain pan, the joint has the fixed lid in the sensor mounting groove, be equipped with the sensor fixed bolster between fixed lid and the sensor mounting groove, the upper end fixedly connected with sensor of sensor fixed bolster, be equipped with the spring between sensor and the fixed lid, the top of fixed lid is equipped with glass panels, the drain pan internal fixation has the mainboard, the output of mainboard passes through electric wire connection with the input of sensor, electric connection has AD value filter on the mainboard.
Preferably, be equipped with square gasket between glass panels and the fixed lid, the upper end of square gasket passes through the hot melt adhesive with glass panels's inside wall and bonds, the lower extreme of square gasket passes through the hot melt adhesive with the upper end lateral wall of fixed lid and bonds.
Preferably, foot pads are fixed at four corners of the lower end of the bottom shell, and the four foot pads are distributed in a rectangular shape.
Preferably, the side wall of the upper end of the glass panel is fixedly connected with a stainless steel decorative sheet, and the stainless steel decorative sheet is fixedly connected with the glass panel through an acrylate adhesive.
Preferably, two ends of the spring are respectively and fixedly connected with the side wall of the upper end of the sensor and the side wall of the lower end of the fixed cover.
Preferably, the glass panel is fixedly connected with the bottom shell through a sealant.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the rapid high-precision measurement human body scale optimizes the existing human body scale weight measurement algorithm mainly from two aspects, a first AD value filtering mode is adopted, due to the existence of mutual interference of circuits, power supply noise interference and electromagnetic interference, periodic or non-periodic interference signals are often superposed on analog input signals and are added into a quantized value, certain deterioration is brought to the signals, the influence of the interference signals is reduced as much as possible in consideration of the real-time property and the safety of data acquisition, an AD value filter is arranged to carry out soft processing on acquired data, a second human body weight value measurement result algorithm is calculated, a unitary linear function is adopted, and a register is used for storing a calibration value and the current test AD value to convert to obtain a current human body weight value measurement result;
2. the main board chip performs rapid AD value collection after weighing on a human body, AD calibration values at four points of CO, C50, C100 and C150 are collected and stored when the main board chip is started and initialized for the first time, parameters of a weight measurement function are obtained on the basis, processing is performed on software to realize AD value filtering and judgment mechanisms, the high-speed chip operation speed is adopted to achieve rapid filtering locking effect and reduce AD stability judgment time, the rapid high-precision measurement human body scale filters the current AD acquisition value through an AD value filter to filter interference influenced by other factors and obtain an accurate AD acquisition value, whether the current state is stable or not is rapidly judged through the change range and stable counting of the current AD value, weight value conversion is performed when the current state is stable to achieve rapid high-precision acquisition effect, and the human body scale can reach a stable state in 2-3 seconds after being weighed on the basis of the setting, high accuracy stable body weight measurements were obtained.
Drawings
Fig. 1 is a schematic structural view of a human body scale for rapid and high-precision measurement according to the present invention;
fig. 2 is a schematic diagram of the unitary linear function (y ═ bx + a) weight measurement conversion of the human body scale of the present invention.
In the figure: 1 stainless steel decorative sheet, 2 glass panels, 3 square gaskets, 4 fixed lids, 5 sensors, 6 sensor fixed bolster, 7 springs, 8 drain pans, 9 callus on the sole, 10 mainboards.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, the present invention provides an embodiment: the utility model provides a quick high accuracy measuring human body scale, including drain pan 8, be equipped with the sensor mounting groove in the drain pan 8, the joint has fixed lid 4 in the sensor mounting groove, be equipped with sensor fixed bolster 6 between fixed lid 4 and the sensor mounting groove, the upper end fixedly connected with sensor 5 of sensor fixed bolster 6, be equipped with spring 7 between sensor 5 and the fixed lid 4, the top of fixed lid 4 is equipped with glass panels 2, drain pan 8 internal fixation has mainboard 10, the output of mainboard 10 passes through electric wire connection with sensor 5's input, electric connection has AD value wave filter on the mainboard 10.
The utility model discloses in: a square gasket 3 is arranged between the glass panel 2 and the fixed cover 4, the upper end of the square gasket 3 is bonded with the inner side wall of the glass panel 2 through hot melt adhesive, the lower end of the square gasket 3 is bonded with the side wall of the upper end of the fixed cover 4 through hot melt adhesive, and the square gasket 3 is used for improving the support of the glass panel 2; foot pads 9 are fixed at four corners of the lower end of the bottom shell 8, the four foot pads 9 are distributed in a rectangular shape, and the foot pads 9 realize the integral support of the bottom shell 8; the side wall of the upper end of the glass panel 2 is fixedly connected with a stainless steel decorative sheet 1, the stainless steel decorative sheet 1 is fixedly connected with the glass panel 2 through an acrylate adhesive, and the stainless steel decorative sheet 1 realizes the decoration of the glass panel 2, so that the integral attractiveness is improved; two ends of a spring 7 are respectively and fixedly connected with the side wall of the upper end of the sensor 5 and the side wall of the lower end of the fixed cover 4, the spring 7 is used for realizing stress buffering of the sensor 5 and avoiding damage of the sensor caused by excessive pressure, and the sensor 5 is a pressure sensor with the model number of YN-601; through sealed fixed connection between glass panels 2 and the drain pan 8, sealed glue is used for improving the leakproofness between glass panels 2 and the drain pan 8, avoids the water splash to go into.
The working principle is as follows: when the human body scale is used for load weighing, the pressure sensor is in a state of rapidly acquiring an AD value when weighing is started, a parameter value is set at the moment to record a difference value between the acquired AD value and a previous AD acquisition value, if the difference value is larger than a set threshold value, the human body scale is in a use state, and the step mainly eliminates an AD acquisition phenomenon caused by circuit interference; implementation of a filter, where the latest filtered data is (a (last original ADC value + current original ADC value) + b last filtered data)/(a 2+ b); 3) setting the maximum value and the minimum value of the change of the AD filter value, if the AD filter value is in a range with a smaller difference (change balance) with the maximum value and the minimum value for a plurality of times continuously, adding 1 to the stable count until the stable count exceeds a set threshold value, which indicates that the weighing is stable, and then further performing weight measurement algorithm conversion on the last AD filter value as the stable weighing AD value to obtain a weight measurement value, as shown in FIG. 2, wherein C0 represents a 0-point calibration value, C50 represents a 50KG calibration value, C100 represents a 100KG calibration value, C150 represents a 150KG calibration value, and C1＝C50-C0，c2＝C100-C50，c3Dividing y-bx + a into three sections of 0-50KG, 50-100KG and 100-150KG, taking 0-50KG section as an example, the function expression of the section is y-x (calibrating and collecting AD value-C0 calibrating and collecting AD value of C50)/(C50-C0) x + C0, and the rest sections are analogized in sequence, preliminarily judging the current AD value to obtain one section of the three sections, further substituting the current AD value into a unary linear function of the section to obtain the weight measurement value, and weighing under a stable stateCan basically reach stability within 2-3S, complete AD acquisition and obtain a weight measurement value.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a quick high accuracy measuring human scale, includes drain pan (8), its characterized in that: be equipped with the sensor mounting groove in drain pan (8), the joint has fixed lid (4) in the sensor mounting groove, be equipped with sensor fixed bolster (6) between fixed lid (4) and the sensor mounting groove, upper end fixedly connected with sensor (5) of sensor fixed bolster (6), be equipped with spring (7) between sensor (5) and fixed lid (4), the top of fixed lid (4) is equipped with glass panels (2), drain pan (8) internal fixation has mainboard (10), the output of mainboard (10) passes through electric wire connection with the input of sensor (5), electric connection has AD value wave filter on mainboard (10).
2. The human body scale of claim 1, wherein: be equipped with square gasket (3) between glass panels (2) and fixed lid (4), the upper end of square gasket (3) and the inside wall of glass panels (2) pass through the hot melt adhesive and bond, the lower extreme of square gasket (3) and the upper end lateral wall of fixed lid (4) pass through the hot melt adhesive and bond.
3. The human body scale of claim 1, wherein: four edges of the lower end of the bottom shell (8) are all fixed with foot pads (9), and the foot pads (9) are distributed in a rectangular shape.
4. The human body scale of claim 1, wherein: the glass panel is characterized in that a stainless steel decorative sheet (1) is fixedly connected to the side wall of the upper end of the glass panel (2), and the stainless steel decorative sheet (1) is fixedly connected with the glass panel (2) through an acrylate adhesive.
5. The human body scale of claim 1, wherein: and the two ends of the spring (7) are respectively and fixedly connected with the side wall at the upper end of the sensor (5) and the side wall at the lower end of the fixed cover (4).
6. The human body scale of claim 1, wherein: the glass panel (2) is fixedly connected with the bottom shell (8) through a sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020322851.9U CN211401393U (en) | 2020-03-13 | 2020-03-13 | Human body scale capable of achieving rapid and high-precision measurement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020322851.9U CN211401393U (en) | 2020-03-13 | 2020-03-13 | Human body scale capable of achieving rapid and high-precision measurement |
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| CN211401393U true CN211401393U (en) | 2020-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393795A (en) * | 2020-11-25 | 2021-02-23 | 深圳市西城微科电子有限公司 | Digital processing method of electronic scale and electronic scale |
| CN113916343A (en) * | 2021-09-15 | 2022-01-11 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
-
2020
- 2020-03-13 CN CN202020322851.9U patent/CN211401393U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393795A (en) * | 2020-11-25 | 2021-02-23 | 深圳市西城微科电子有限公司 | Digital processing method of electronic scale and electronic scale |
| CN113916343A (en) * | 2021-09-15 | 2022-01-11 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
| CN113916343B (en) * | 2021-09-15 | 2023-12-22 | 惠州市开蒙医疗科技有限公司 | Method for connecting transparent glass scale surface and metal decorative sheet for electronic scale and electronic scale |
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