CN201798740U - Body composition inspection instrument based on bioelectrical impedance measurement - Google Patents
Body composition inspection instrument based on bioelectrical impedance measurement Download PDFInfo
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- CN201798740U CN201798740U CN2010205316652U CN201020531665U CN201798740U CN 201798740 U CN201798740 U CN 201798740U CN 2010205316652 U CN2010205316652 U CN 2010205316652U CN 201020531665 U CN201020531665 U CN 201020531665U CN 201798740 U CN201798740 U CN 201798740U
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Abstract
The utility model relates to a body composition inspection instrument based on bioelectrical impedance measurement. The inspection instrument comprises a control module, and a weight detection module, an input module, a display module which are respectively connected with the control module, a current generation module, a voltage detection module, a data base storage module, an exciting electrode gating module, a detection electrode gating module, a hand electrode module and a foot electrode module, wherein the exciting electrode gating module is connected with the current generation module, the control module, the hand electrode module and the foot electrode module respectively; and the detection electrode gating module is connected with the voltage detection module, the control module, the hand electrode module and the foot electrode module respectively. The inspection instrument not only can weigh body weight, but also can detect component indexes of fat, moisture, muscle and the like of a human body and provide more comprehensive parameters for the self-assessment on the human physical condition, thus improving the accuracy rate of the self-assessment on the human physical condition.
Description
Technical field
This utility model relates to non-medical human detecting instrument, relates in particular to based on the human body component of bio-electrical impedance measuring and inspects instrument.
Background technology
Existing non-medical human detecting instrument, the modal domestic weighing machine that has pair human body weight to carry out weighing.After the domestic weighing machine had been arranged, people can be in and detect the body weight of oneself at any time, thereby make suitable adjustment on diet, bring negative influence in order to avoid health is crossed fat or mistake is thin to health.But existing domestic weighing machine can only detect body weight, and people can't detect compositions such as self intravital fat, moisture, muscle, therefore comes health status such as health is fat or thin are judged that error obviously is bigger by body weight merely.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, provide based on the human body component of bio-electrical impedance measuring and inspect instrument, this inspects instrument not only can weighing persons weight, and component target such as fat that can also human body, moisture, muscle, provide more fully parameter to people to the self assessment of physical condition, thereby improved people carry out self assessment to physical condition accuracy rate.
The purpose of this utility model is achieved through the following technical solutions: the human body component based on bio-electrical impedance measuring is inspected instrument, comprise: control module, the body weight detection module that is connected with control module respectively, input module, display module, electric current generation module, voltage detection module and data base's memory module, and exciting electrode gating module, detecting electrode gating module, hand electrode module and foot's electrode module; Exciting electrode gating module is connected with the foot electrode module with electric current generation module, control module, hand electrode module respectively; Detecting electrode gating module is connected with the foot electrode module with voltage detection module, control module, hand electrode module respectively.
Described body weight detection module comprises force cell, differential voltage amplification module and the analog-to-digital conversion module that connects successively, and analog-to-digital conversion module also is connected with control module.
Described force cell is the four arm differential bridges that four resistance strain gages are formed.
Described differential voltage amplification module comprises preposition amplification end and the secondary amplification end that is connected, and wherein preposition amplification end adopts differential amplifier, and secondary amplification end adopts amplifier in the same way.
Described hand electrode module comprises a left hand exciting electrode, a right hand exciting electrode, a left hand measurement electrode and a right hand measurement electrode, left hand exciting electrode, right hand exciting electrode are connected with exciting electrode gating module respectively, and left hand measurement electrode, right hand measurement electrode are connected with detecting electrode gating module respectively.
Described foot electrode module comprises a left foot exciting electrode, a right crus of diaphragm exciting electrode, a left foot measurement electrode and a right crus of diaphragm measurement electrode, left foot exciting electrode, right crus of diaphragm exciting electrode are connected with exciting electrode gating module respectively, and left foot measurement electrode, right crus of diaphragm measurement electrode are connected with detecting electrode gating module respectively.
Inspect in the instrument at above-mentioned human body component, also comprise the wireless output module that is used for the data wireless of data base's memory module is sent to computer based on bio-electrical impedance measuring; Described wireless output module is connected with data base's memory module.
This utility model has following advantage and effect with respect to prior art:
1, not only can weighing persons weight, component targets such as fat that can also human body, moisture, muscle, provide more fully parameter to people to the self assessment of physical condition, thereby improved people carry out self assessment to physical condition accuracy rate.
2, aspect the modelling of human body equivalent resistance, this utility model is measured human impedance by 8 electrodes, voltage signal that collects from the human body corresponding site and body fat content and distribution correlation coefficient are the highest, repeatability is best, thereby, have than higher accuracy according to each component target of human body that the electrical impedance that these 8 electrodes are measured is calculated.
Description of drawings
Fig. 1 is a hardware block diagram of the present utility model;
Fig. 2 is a workflow diagram of the present utility model.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing this utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
Human body can show certain electrology characteristic under the situation of energising, because the human body non-fat tissue contains more water, can be regarded as the good conductor of electricity, and fatty tissue moisture is few, can be regarded as the non-conductor of electricity.When alternating current feeds human body, electric current will mainly pass through non-fat tissue, and current ratio interior by cell, the path, extracellular is relevant with power frequency.When at a certain size, under the exciting current effect of certain frequency, if the human body fat content of unit volume is many more, impedance is just big more, and the body moisture is many more, and impedance is just more little, and the size of human body component content and human body impedance has very high dependency.Therefore, can measure the impedance of human body, can derive each component target such as body fat the most at last by import the unidirectional current of a certain fixed frequency, fixed size at human body.The electrical impedance characteristics that this utility model just is being based on above-mentioned human body comes each component target of human body.
As shown in Figure 1, this utility model comprises control module 17, the supply module 18 that is connected with control module 17, body weight detection module 19, input module 20, display module 21, electric current generation module 22, voltage detection module 27 and data base's memory module 28, and exciting electrode gating module 23, detecting electrode gating module 26, hand electrode module 24, foot's electrode module 25 and wireless output module 29 respectively; Exciting electrode gating module 23 is connected with foot electrode module 25 with electric current generation module 22, control module 17, hand electrode module 24 respectively; Detecting electrode gating module 26 is connected with foot electrode module 25 with voltage detection module 27, control module 17, hand electrode module 24 respectively; Wireless output module 29 is connected with data base's memory module 28.Wireless output module 29 is used for the data wireless of data base's memory module 28 is sent to computer, and it structurally mainly comprises the wireless two-way transceiving chip.The preferred radio frequency chip of described wireless two-way transceiving chip, this radio frequency chip is provided with as the pin one of the serial control interface of data inputs, as the pin two of the serial control interface of clock input, the pin 4 that keeps as the pin 3 of the serial control interface of chip, as the serial data output bus, the pin 5 that is used for interrupt requests output, and wherein pin 3 and pin 5 all are that low level is effective.
The resistance value that control module 17 is measured according to hand electrode module 24 and foot's electrode module 25 calculates human body component.What in the present embodiment, control module 17 was selected for use is singlechip chip; It is big that this singlechip chip has an amount of ram, integrated level height, advantages such as low price.Supply module 18 is selected low pressure reduction voltage stabilizing chip for use, and power consumption is extremely low.
Body weight detection module 19 comprises force cell 191, differential voltage amplification module 192 and the analog-to-digital conversion module 193 that connects successively, and analog-to-digital conversion module 193 also is connected with control module 17.Force cell 191 is the four arm differential bridges that four resistance strain gages are formed, and it is good, highly sensitive that four arm differential bridges have the linearity, and advantages such as temperature self-compensation have guaranteed the quality in measuring-signal source.Differential voltage amplification module 192 adopts secondary to amplify, and wherein preposition amplification end uses differential amplifier, and characteristics are common mode rejection ratio height, and circuit has very strong capacity of resisting disturbance; Secondary amplification end adopts amplifier in the same way, and the main pro-of Amplifier Gain is put big end, effectively utilizes the advantage of differential amplifier, makes error reduce to minimum as far as possible.Analog-to-digital conversion module 193 uses 10 integrated A/D chips of main control chip, and circuit is simple, the reliability height.
Input module 20 adopts the 4*4 matrix keyboard.Display module 21 uses segment code type LCD to show that power consumption is extremely low.The 50KHz square wave that is sent by the main control chip of control module 17 is selected the sine wave of 50KHz through filtering frequency-selecting module, this sine wave is at the sinusoidal current source that produces under the amplifier effect about 0.1mA, and this current source is after electric current generation module 22 amplifies and measures the excitation current source that uses.Exciting electrode gating module 23 is a multiway analog switch, and the main control chip control multiway analog switch by control module 17 is transported to different measurement points to excitation current source.
Hand electrode module 24 comprises a left hand exciting electrode, a right hand exciting electrode, a left hand measurement electrode and a right hand measurement electrode, left hand exciting electrode, right hand exciting electrode are connected with exciting electrode gating module 23 respectively, and left hand measurement electrode, right hand measurement electrode are connected with detecting electrode gating module 26 respectively.Foot's electrode module 25, structure and hand electrode module 24 are similar, comprise a left foot exciting electrode, a right crus of diaphragm exciting electrode, a left foot measurement electrode and a right crus of diaphragm measurement electrode, left foot exciting electrode, right crus of diaphragm exciting electrode are connected with exciting electrode gating module 23 respectively, and left foot measurement electrode, right crus of diaphragm measurement electrode are connected with detecting electrode gating module 26 respectively.
Detecting electrode gating module 26, structure is identical with exciting electrode gating module 23.27 pairs of measured voltages of voltage detection module carry out processing such as filtering, shaping, amplification, peak value sampling, the main control chip of the voltage transmission after handling to control module 17, obtain total impedance of a human body's value by main control chip then.Data base's memory module 28 uses the eeprom of 16K can store a large number of users data, and the user is had at fingertips to self recent health.
As shown in Figure 2, work process of the present utility model is as follows:
1, instrument is inspected in unlatching.If the system time that shows is the time (as 2010) of initial setting, then shown system's power-down rebooting, be normal shutdown if not then be described last time; Can finish the modification of system time during the system power-down rebooting by the button of panel.
2, measure body weight, show the body weight value, by " user/setting " key explicit user data and selection interface.
3, if need compiles user data or system time, then enter editing interface, just can finish the modification of subscriber data (as sex, height, body weight etc.) or system time by keyboard; If do not need compiles user data or system time, then carry out human impedance and measure.
When the user selected ID, screen was removed body weight and is shown, shows the data of selected user, to make things convenient for user's calibration information; If the user finds that shown subscriber data is wrong, or need newly add a user time, just can revise wrong data or set up a new user's data by keyboard.All confirm errorlessly when all information of user, also do not have new user and add, and when not needing to revise system time, just can carry out human body resistance; The measurement of human impedance is carried out five-part form and is measured by the gate action of multiway analog switch.
4, after the partes corporis humani divided impedance to measure to finish, control module was handled measured value, calculated each component target of human body.
5, the user searches the component target that needs demonstration by button.If the component target of being searched is in the historical data state,, take out historical data then by the binary search database data; After historical data finds out, at first with this data show on display screen, calculate the difference with the current measured value of component target simultaneously, then difference is shown.If the component target of being searched is not to be in the historical data state, then direct current measured value with component target shows.
6, as if current measured value being deposited in the data of data base, then current measured value is deposited among the eeprom as the current time.So, deserve preceding measured value and can cover the data of preserving last time.After if current measured value deposits eeprom in, also need further to be transferred to individual PC, promptly on the computer, then can finish by wireless output module 29.
The foregoing description is this utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (7)
1. inspect instrument based on the human body component of bio-electrical impedance measuring, it is characterized in that, comprise: control module, the body weight detection module that is connected with control module respectively, input module, display module, electric current generation module, voltage detection module and data base's memory module, and exciting electrode gating module, detecting electrode gating module, hand electrode module and foot's electrode module; Exciting electrode gating module is connected with the foot electrode module with electric current generation module, control module, hand electrode module respectively; Detecting electrode gating module is connected with the foot electrode module with voltage detection module, control module, hand electrode module respectively.
2. the human body component based on bio-electrical impedance measuring according to claim 1 is inspected instrument, it is characterized in that, described body weight detection module comprises force cell, differential voltage amplification module and the analog-to-digital conversion module that connects successively, and analog-to-digital conversion module also is connected with control module.
3. the human body component based on bio-electrical impedance measuring according to claim 2 is inspected instrument, it is characterized in that, described force cell is the four arm differential bridges that four resistance strain gages are formed.
4. the human body component based on bio-electrical impedance measuring according to claim 2 is inspected instrument, it is characterized in that, described differential voltage amplification module comprises preposition amplification end and the secondary amplification end that is connected, and wherein preposition amplification end adopts differential amplifier, and secondary amplification end adopts amplifier in the same way.
5. the human body component based on bio-electrical impedance measuring according to claim 1 is inspected instrument, it is characterized in that, described hand electrode module comprises a left hand exciting electrode, a right hand exciting electrode, a left hand measurement electrode and a right hand measurement electrode, left hand exciting electrode, right hand exciting electrode are connected with exciting electrode gating module respectively, and left hand measurement electrode, right hand measurement electrode are connected with detecting electrode gating module respectively.
6. the human body component based on bio-electrical impedance measuring according to claim 1 is inspected instrument, it is characterized in that, described foot electrode module comprises a left foot exciting electrode, a right crus of diaphragm exciting electrode, a left foot measurement electrode and a right crus of diaphragm measurement electrode, left foot exciting electrode, right crus of diaphragm exciting electrode are connected with exciting electrode gating module respectively, and left foot measurement electrode, right crus of diaphragm measurement electrode are connected with detecting electrode gating module respectively.
7. the human body component based on bio-electrical impedance measuring according to claim 1 is inspected instrument, it is characterized in that, also comprises the wireless output module that is used for the data wireless of data base's memory module is sent to computer; Described wireless output module is connected with data base's memory module.
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| CN2010205316652U CN201798740U (en) | 2010-09-15 | 2010-09-15 | Body composition inspection instrument based on bioelectrical impedance measurement |
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| CN2010205316652U CN201798740U (en) | 2010-09-15 | 2010-09-15 | Body composition inspection instrument based on bioelectrical impedance measurement |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102512167A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Body composition detector |
| CN102613973A (en) * | 2012-03-14 | 2012-08-01 | 深圳市倍泰健康测量分析技术有限公司 | Wireless fat instrument |
| CN103162781A (en) * | 2011-12-19 | 2013-06-19 | 天津九安医疗电子股份有限公司 | Body scale having body composition measurement function |
| CN105212930A (en) * | 2015-09-02 | 2016-01-06 | 杨静 | A kind of portable body analytical instrument |
| CN105232034A (en) * | 2014-06-04 | 2016-01-13 | 中国科学院半导体研究所 | Electrode and circuit multiplex structure for detecting electrocardiograph signals and human impedance |
| CN105326503A (en) * | 2015-11-30 | 2016-02-17 | 江门大诚医疗器械有限公司 | Human body moisture detection bracelet |
| CN105476632A (en) * | 2015-11-10 | 2016-04-13 | 北京章鱼智数科技有限公司 | Human body electrical impedance health risk assessment system and human body electrical impedance health risk assessment method |
| CN105769194A (en) * | 2016-03-30 | 2016-07-20 | 缤刻普锐(北京)科技有限责任公司 | Device for quickly measuring human body information |
| CN107808697A (en) * | 2017-10-20 | 2018-03-16 | 全民（北京）健康医疗数据有限公司 | A kind of management system for health evaluating |
| WO2018090560A1 (en) * | 2016-11-19 | 2018-05-24 | 深圳市前海安测信息技术有限公司 | Integrated health detection machine-based multi-point fat detector |
| CN111380921A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院合肥物质科学研究院 | Meat moisture detector and detection method based on bioelectrical impedance |
| CN112294259A (en) * | 2020-10-09 | 2021-02-02 | 合肥拉塞特机器人科技有限公司 | Convenient-to-use physique detector and detection method thereof |
-
2010
- 2010-09-15 CN CN2010205316652U patent/CN201798740U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162781A (en) * | 2011-12-19 | 2013-06-19 | 天津九安医疗电子股份有限公司 | Body scale having body composition measurement function |
| CN103162781B (en) * | 2011-12-19 | 2016-01-27 | 天津九安医疗电子股份有限公司 | A kind of weighing scale with measuring body composition function |
| CN102512167A (en) * | 2011-12-27 | 2012-06-27 | 王培勇 | Body composition detector |
| CN102613973A (en) * | 2012-03-14 | 2012-08-01 | 深圳市倍泰健康测量分析技术有限公司 | Wireless fat instrument |
| CN105232034A (en) * | 2014-06-04 | 2016-01-13 | 中国科学院半导体研究所 | Electrode and circuit multiplex structure for detecting electrocardiograph signals and human impedance |
| CN105212930A (en) * | 2015-09-02 | 2016-01-06 | 杨静 | A kind of portable body analytical instrument |
| CN105476632A (en) * | 2015-11-10 | 2016-04-13 | 北京章鱼智数科技有限公司 | Human body electrical impedance health risk assessment system and human body electrical impedance health risk assessment method |
| CN105326503A (en) * | 2015-11-30 | 2016-02-17 | 江门大诚医疗器械有限公司 | Human body moisture detection bracelet |
| CN105769194A (en) * | 2016-03-30 | 2016-07-20 | 缤刻普锐(北京)科技有限责任公司 | Device for quickly measuring human body information |
| CN105769194B (en) * | 2016-03-30 | 2018-11-13 | 缤刻普锐(北京)科技有限责任公司 | A kind of device of quick measurement human body information |
| WO2018090560A1 (en) * | 2016-11-19 | 2018-05-24 | 深圳市前海安测信息技术有限公司 | Integrated health detection machine-based multi-point fat detector |
| CN107808697A (en) * | 2017-10-20 | 2018-03-16 | 全民（北京）健康医疗数据有限公司 | A kind of management system for health evaluating |
| CN111380921A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院合肥物质科学研究院 | Meat moisture detector and detection method based on bioelectrical impedance |
| CN112294259A (en) * | 2020-10-09 | 2021-02-02 | 合肥拉塞特机器人科技有限公司 | Convenient-to-use physique detector and detection method thereof |
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Granted publication date: 20110420 |