CN106887888A - A kind of intelligent heating Weight-detecting device and its application method - Google Patents
A kind of intelligent heating Weight-detecting device and its application method Download PDFInfo
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- CN106887888A CN106887888A CN201710164018.9A CN201710164018A CN106887888A CN 106887888 A CN106887888 A CN 106887888A CN 201710164018 A CN201710164018 A CN 201710164018A CN 106887888 A CN106887888 A CN 106887888A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The present invention relates to smart machine field, and in particular to a kind of intelligent heating Weight-detecting device and its application method.A kind of intelligent heating Weight-detecting device, comprising body fat measurement module and power supply module, the power supply module is included and is connected with the bodily fat measurement module, and for the battery module to the bodily fat measurement module for power supply；Heating module is also included, the heating module is used for calandria re-detection apparatus surface.It is an object of the invention to provide a kind of intelligent heating Weight-detecting device and its application method, improve electric power system, comprising heating module and the charging module being attached thereto and control module so that Weight-detecting device can be heated to itself, and solve the problems, such as heating power supply.
Description
Technical field
The present invention relates to smart machine field, and in particular to a kind of intelligent heating Weight-detecting device and its application method.
Background technology
With the development and the rising of levels of substance of society, concern of the people to own health is more and more stronger.It is strong at itself
In the problem of health, one of focus of concern is exactly the weight levels of itself.Once with advancing age and life style
Change, cause the change of itself metabolism, easily cause the body weight of itself and rise and problem of obesity, it is and fat,
The stature for not only affecting itself is attractive in appearance, also easily causes various health problems and disease, such as：Angiocardiopathy, height
Blood pressure etc., and be very easy to trigger the various chronic diseases for being difficult to cure in the course of time.
In order to improve the body weight question of itself, people begin to focus on diet, concern and take exercise and body-building, and can pay close attention to daily
The changes of weight of itself.But, the body weight of a people contains blood, bone, muscle, fat etc., and the problem of obesity returns root
Knot bottom is the height of own fat content, and adult possesses strong muscle and an adult possesses substantial amounts of fat,
Identical body weight may but be possessed, so, compared to the body weight numerical value for once only using batheroom scale, people are more and more using all
The calculating scale of Determination of Total Body Fat is carried out by Human fat balance that the Chinese patent document of CN 105708459A is announced such as publication No.
Amount.
Human fat balance can measure the fat content index of user, and measuring method is relatively more, for example weighing mensuration, body under water
Fat pincers mensuration, NMR imaging method, bioelectrical impedance analysis.Wherein, in recent years, the bodily fat measurement meter based on bioimpedance
The main flow for industry is counted as, its principle is, when such as certain electrical signal of the frequency passes through human body, fats portion is than muscle and human body
" impedance " of its hetero-organization is higher.When passing through human body using a CF electric signal for safety, electric signal can be because of human body " resistance
It is anti-" difference and there is different degrees of change.Intramuscular contains the moisture such as more blood, electrically conductive, and fat is not lead
Electricity.Because the channel conductor of internal electric current is muscle, the difficulty passed through from electric current is it is known that the weight of muscle, thus can sentence
Disconnected, in the ratio of body weight, the ratio of the less people's fat of muscle is higher.
But the design of such Human fat balance also containing it is certain the drawbacks of, it is necessary to user is stepped down on Human fat balance barefoot, it is and present
Human fat balance for light design concept, power supply often uses dry cell power supply, and voltage x current is all less than normal, is not enough to the short time
It is interior that Human fat balance is electrically heated, to work as autumn and winter, especially the north, than relatively low, human body contacts Human fat balance to environment temperature barefoot
Have very strong sense of discomfort.
The content of the invention
It is an object of the invention to provide a kind of intelligent heating Weight-detecting device and its application method, power supply system is improved
System, comprising heating module and the charging module being attached thereto and control module so that Weight-detecting device can be added to itself
Heat, and solve the problems, such as heating power supply.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of intelligent heating body weight detection
Device, comprising body fat measurement module and power supply module, the power supply module is included and is connected with the bodily fat measurement module, and is used for
To the battery module of the bodily fat measurement module for power supply；
Heating module is also included, the heating module is used for calandria re-detection apparatus surface；
The power supply module also includes charging inlet, and the charging inlet is used to be powered to the heating module；
Control module is also included, the control module includes the switch module being connected with the heating module, the switch
The power supply state and off-state of the changeable heating module of module.
As it is of the invention preferably, the charging inlet be connected with the battery module, the battery module be it is chargeable
Battery, the charging inlet can be charging battery module.
As it is of the invention preferably, the charging inlet be micro usb interfaces.
As it is of the invention preferably, the control module is also comprising accessing detection module, the access detection module and institute
Charging inlet connection is stated, for detecting whether the charging inlet is connected with charging equipment.
As it is of the invention preferably, also comprising temperature judge module, the temperature judge module connects with the control module
Connect, and for detecting environment temperature.
As it is of the invention preferably, also comprising time detecting module, the time detecting module connects with the control module
Connect, the time detecting module includes heat time detection module, the heat time detection module is used to detect the heating
The duration of module heated condition.
Preferably the time detecting module also includes current time detection module as of the invention, current for obtaining
Time.
A kind of application method of intelligent heating Weight-detecting device, comprises the following steps：
Step 1：Detecting step is accessed, whether detection intelligent heating Weight-detecting device charging inlet has successfully linked up
Charging equipment；
Step 2：Switching step, if the testing result in step 1 is to be successfully connected, opens intelligent heating body weight detection dress
The heating module put, the power supply of the heating module comes from the charging equipment that the charging inlet is accessed；
Step 3：Bodily fat measurement step, user's body is measured by the bodily fat measurement module of intelligent heating Weight-detecting device
Fat, the power supply of the bodily fat measurement module comes from the battery module of intelligent heating Weight-detecting device.
Preferably also judge step comprising temperature as of the invention, when environment temperature is detected higher than preset value, then open
The heating module.
Preferably after step 3, step also is closed comprising timing as of the invention, when the detection heating module adds
The hot time is reached after preset value, then disconnect the heating module；Before step 3, also comprising time opening step, when current
Between when reaching Preset Time, open the heating module.
The present invention has the advantages that：
1st, the power supply of heating module comes from charging inlet, and the power supply of bodily fat measurement module comes from battery module, independently of one another,
Solve the powerup issue of heating module.
2nd, charging inlet can charge to battery module, solve the problems, such as the replacing of dry cell.
3rd, accessing detection module can detect whether that external charging equipment is connected to charging by bleeder circuit
Mouthful.
4th, switch module can open and close the power supply of heating module under the control of MCU, so as to carry out Based Intelligent Control
The temperature of Weight-detecting device.
5th, current time detection module can realize the reservation timing heated of Weight-detecting device.
6th, heat time detection module can realize that timing closes heating module so as to control the function of temperature.
Brief description of the drawings
Fig. 1 is system architecture schematic diagram of the invention；
Fig. 2 is control module, power supply module, the circuit diagram of heating module in the present invention；
Fig. 3 is schematic flow sheet of the invention；
Fig. 4 is the flow chart of embodiment 1.
Specific embodiment
Specific examples below is only explanation of the invention, and it is not limitation of the present invention, art technology
Personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as
All protected by Patent Law in scope of the presently claimed invention.
Embodiment one
As this paper background technology described in, body fat measurement increasingly be subject to health personage paid close attention to, one kilogram
Fat and one kilogram of muscle, although weight is identical, but volume differs greatly, and the overall perception to human body stature also has very
Big difference.And the reduction of body fat is different from other fitness projects, the reduction of body fat is an incremental and uniform reduction
Process is, it is necessary to spend the sizable energy of user.That is, user needs to keep on a diet for a long time, fatty foods are reduced
Input, controls the input of heat, on the other hand, is more worked hard again, time aerobic exercise more long, by the fat in human body
Fat burning discharge, and this process is relatively slow, it is impossible to settle at one go.For this reason that, for needing such as body fat
Special instrument as scale just can know that daily body fat change, it is impossible to depends merely on naked eyes and is just effectively observed.
And existing body fat calculation, such as body fat are clamped, measurement site is right arm acromion to the midpoint of caput radii line,
Need the manually operated body fat pincers of user to go to clamp this part, there is certain pain, on the other hand, it not is final to measure the reading for coming
The result of body fat rate, but a computing formula is needed, the relevant parameter on the body density form of human body is introduced, operation is calculated
It is cumbersome, and numeral is less accurate.
And the Weight-detecting device that the present invention is announced is used or present main flow, use the most commonly used life of scope
The Weight-detecting device of thing impedance, all advantages for not only possessing conventional Human fat balance, such as simple to operate, reading is accurate, user
On Weight-detecting device, Weight-detecting device occurs test electric current, and electric current passes through human body, because muscle to only need to station barefoot
Organize impedance with adipose tissue to electric current different, calculate adipose tissue such that it is able to the difference according to this impedance shared by
The proportion of whole human body.
In the present embodiment, as depicted in figs. 1 and 2, heating module is also added into, heating module can in the state of energization
To be heated, the temperature of Weight-detecting device is lifted so that user detects in naked foot-operated upper body re-detection apparatus surface with body weight
Device and the naked pin contact of electrode slice, there will not be due to the too low sense of discomfort of temperature.
This kind of Weight-detecting device includes a charging inlet first, e.g. micro USB interfaces, or other
Such as MINI USB interfaces, can directly be charged with circumscripted power line.Heating module can include heating plate, and heating module
Power supply, do not come from battery module, and come from charging module.
Fig. 2 is the schematic block diagram of the power supply circuit of heating plate, and in this embodiment, battery module can be used
The chargeable lithium cell of 2000MHA is powered, and electrode slice is to the bodily fat measurement of user, the i.e. power supply of bodily fat measurement module, from this
Individual lithium battery.Meanwhile, charging inlet is connected with battery module, i.e., user can give this lithium electricity by micro USB interfaces
Pond is charged, and so not only solves the problems, such as the replacing of dry cell, also can further increase the use time of Weight-detecting device.
On the block diagram shown in Fig. 2, on hardware circuit, an on-off circuit is designed on the power supply circuit of heating source, be used for
Control of the software to power supply circuit, i.e. switch module in control module.
Wherein Mic USB interfaces be with to lithium battery provide charge power supply interface, the heating plate 1 that heating module is included,
2,3,4 respectively below four metal electrodes, and the quantity of heating plate is not necessarily 4, can be 1, or 2 or 8
It is individual, it is 4 in the present embodiment.Resistance R1 and resistance R2 composition bleeder circuits, for detecting whether DC-5V voltages have, also
It is whether USB interface inserts；Here it is the access detection module mentioned in present specification.
Switch module includes Q1, R3, Q2, and they constitute on-off circuit, for controlling whether to give heating plate power transmission.Microcontroller
Unit (, Microcontroller Unit, i.e. MCU), it is the control centre of Weight-detecting device, that is, in present specification
Control module.Comprising detection module is accessed, whether the effect for accessing detection module is for detecting charging inlet to control module
There is electricity, i.e., whether external charging equipment smoothly connects upper charging inlet.In the present case, GPIO1 is used for detecting the electricity between R1, R2
Pressure value changes, for determining whether there is charger insertion, when GPIO1 level is high, have charger to insert, when GPIO1 level
For it is low when then without charger insert, GPIO1 just serve described in text access detection module effect, and GPIO2 be used for control
Whether system powers to heating plate, when GPIO2 is output as high, it is allowed to powered to heating plate, when GPIO2 is low, disconnects heating plate and supplies
Electricity, serves the effect of switch module.
During life's work, first, external power supply by wiring, is connected to charging inlet, i.e., by user
On MICRO USB interfaces, on the one hand this interface can be supplied to the charging of lithium battery, be also heating module on the other hand
Power supply source.Now, access detection module to start to start, i.e. GPIO1 starts working, and detects whether that charger is smoothly accessed.When
The level of GPIO1 is height, and that represents that charger is smoothly accessed, and now allows for heating module to operate, and the output of GPIO2 is just
It is high.If charging inlet does not connect charger, then the power supply of heating plate is disconnected, otherwise, if the power consumption of heating module is from electricity
Pond module goes out, on the one hand, electricity and power do not reach appropriate requirement, it is impossible to heat heating plate in rational time range
To assigned temperature, on the other hand, larger load and power consumption will be formed to battery, influence is normally used.
The preferred scheme implemented as this, as shown in figure 1, also including temperature judge module, temperature judge module can be with
Comprising a temperature inductor being integrated on Weight-detecting device, temperature inductor can detect current environment temperature.System
Uniting can also preset a critical temperature value in MCU, e.g. 15 degrees Celsius, when the environment temperature that temperature inductor is detected
When higher than 15 degrees Celsius, that is, represent that environment temperature is higher, without heating, the naked feet station of user on Weight-detecting device not yet
Can feel a sense of cold.Further, since be that temperature judge module is real-time monitoring to environment temperature, if heating module is examined to body weight
During survey apparatus surface is in heating, half is heated to, temperature judge module detects environment temperature from 14 degrees Celsius
16 degrees Celsius are risen to, that switch module can also disconnect, cut off the heated condition of heating module, be i.e. GPIO2 becomes low level,
Disconnection heating plate is closed to power.
Additionally, as shown in figure 1, also time detecting module, time detecting module divide into two parts, be respectively current
Time detecting module and heat time module, both effect are different, the former, current time detection module is mainly and has used
Reservation function.
For example, user is accustomed to daily early morning measures oneself empty stomach body fat in the middle of one day when get up, for example daily all
Measured when six o'clock sharps in the morning.And body temperature scale is heated to suitable temperature by heating plate itself, it is necessary to when certain
Between, thus heating specific time of reservation to consider the heat time of itself.For example this heat time need 15 minutes, then this
Individual reservation value can also be stored in advance in MCU, and current time detection module detects current time and has arrived at 5: 40
Five points, now, the switch module of control module begins to running, specifically, GP102 becomes high level, opens heating power supply.
So, by control module and current time detection module, it is achieved that the body weight inspection of technical scheme
Survey the timer reservation heating function of device.
What deserves to be explained is, the realization of this reservation heating function has number of ways, can be that user specifies, and setting is pre-
Fixed heat time, or systematic learning, i.e., measure the time of Weight-detecting device by user, carries out probability statistics,
When some time period, the use of user's high probability then stores lower this time, as definite value, reservation is being realized next time
Automatic heating.
Time detecting module also includes heat time detection module, different from current time detection module mentioned above,
Heat time detection module is mainly the continuous heating time of monitoring heating module.If heating module is continued for heating, one
Aspect, can cause Weight-detecting device surface temperature too high, cause the sense of discomfort of user, there is the sensation for bathing one's feet in hot water.On the other hand,
The burden of electric power system can be caused, unnecessary waste is caused.The duration of time detecting module detection heating, this time
There can also be a preset value, for example, the duration of heating is 15 minutes, be reached when time detection module detects the duration
To this preset value, then the switch module in control module is switched off the power supply of heating module, and GPIO2 is changed into low level.
Additionally, the technical scheme announced of the present invention is preferred, the step of electric power detection can also be added.Specifically, such as
Mentioned above, charging inlet, i.e. MICRO USB interfaces are connected with battery module, and battery module is rechargeable lithium battary,
MICRO USB can charge to lithium battery.System also has electric power detection module, and the dump energy of lithium battery can be carried out
Detection.
Meanwhile, a warning preset value for battery electric quantity can be preset, and store in MCU.When the residue electricity of lithium battery
Amount is less than this numerical value, then can be alerted.Further, system can be charged, and the electricity of charging inlet is used for electricity
The charging of pond module, realizes the automatic charging of battery module.
Above-mentioned multiple modules, are all the preferred schemes of the technical scheme that the present invention is announced, and are not to of the invention
The limitation of technical scheme, each module corresponds to its difference in functionality on Weight-detecting device, and these modules can be with single
It is integrated, it is also possible to be all integrated on Weight-detecting device simultaneously.
When above-mentioned modules are all concentrated on this Weight-detecting device, each judges that classification is present in step
Sequencing, specific ranking order is as shown in Figure 3.
First, what is carried out is temperature judge module.
Temperature judge module carries out automatic and real-time detection to current environment temperature, and it is Celsius that critical-temperature is set to 15
Degree, when higher than 15 degrees Celsius, expression need not start heating module and Weight-detecting device is heated, therefore GPIO2 is
Low level, cuts off the power supply of heating module.
If environment temperature is less than 15 degrees Celsius, then it represents that need to heat Weight-detecting device, then into next
Individual step.
As noted above, system can be preset, it is also possible to realize pre-heated function by study, now, when
Preceding time detecting module comes into operation, and detects the current time, and judge, the interval of the use time of distance users.
If time interval was more than a heating duration, such as 15 minutes.If the use of current time gap user
Time is more than 15 minutes, represents that heating is also premature now, it is not necessary to reservation heating is carried out at current time, so switching molding
Block is in closed mode, and GPIO2 is in low level state, and heating module should not also be heated.
It it is, for example, less than 15 minutes, then into next step when time interval is less than heating duration.
Into detecting step is accessed, now access detection module and start to judge whether charger insert, i.e., whether external electricity
Micro USB interfaces have been accessed in source, if detect not accessing, if now being heated, can be used to battery module, i.e. lithium
The electricity of battery, not only influences whether heating power heating effect, can also reduce the system standby time, if so discovery does not connect
Enter external power supply, then GPIO2 is in low level state, heating module is not heated still.
If accessing detection module by detection, it is found that external charger has been successfully accessed, then now, it is possible to normal
Start heating module, GPIO2 is changed into high level, and four heating plates are initially powered up heating to lift whole Weight-detecting device
Surface temperature.
In heating at first, heat time detection module begins to timing.
Then, heat time detection module starts the duration of detection heating, if the time is also not above preset value, for example
15 minutes, were it not for more than this 15 minutes, then GPIO2 is in high level position, heating module is powered also in heating
State.
But if more than 15 minutes, then it represents that the heat time has arrived, continuing to heat can cause the too high problem of temperature, this
When be accomplished by cutting off the power supply of heating module, GPIO1 drags down, and has cut off the power supply of heating module, control body weight detection means
Temperature no longer rise.
In sum, the present embodiment has the advantages that：
1st, the power supply of heating module comes from charging inlet, and the power supply of bodily fat measurement module comes from battery module, independently of one another,
Solve the powerup issue of heating module.
2nd, charging inlet can charge to battery module, solve the problems, such as the replacing of dry cell.
3rd, accessing detection module can detect whether that external charging equipment is connected to charging by bleeder circuit
Mouthful.
4th, switch module can open and close the power supply of heating module under the control of MCU, so as to carry out Based Intelligent Control
The temperature of Weight-detecting device.
5th, current time detection module can realize the reservation timing heated of Weight-detecting device.
6th, heat time detection module can realize that timing closes heating module so as to control the function of temperature.
Claims (10)
1. a kind of intelligent heating Weight-detecting device, comprising body fat measurement module and power supply module, it is characterised in that：The power supply
Module is included and is connected with the bodily fat measurement module, and for the battery module to the bodily fat measurement module for power supply；
Heating module is also included, the heating module is used for calandria re-detection apparatus surface；
The power supply module also includes charging inlet, and the charging inlet is used to be powered to the heating module；
Control module is also included, the control module includes the switch module being connected with the heating module, the switch module
The power supply state and off-state of the changeable heating module.
2. a kind of intelligent heating Weight-detecting device according to claim 1, it is characterised in that：The charging inlet and institute
Battery module connection is stated, the battery module is rechargeable battery, and the charging inlet can be charging battery module.
3. a kind of intelligent heating Weight-detecting device according to claim 1, it is characterised in that：The charging inlet is
Micro usb interfaces.
4. a kind of intelligent heating Weight-detecting device according to claim 1 or 2 or 3, it is characterised in that：The control mould
Also comprising detection module is accessed, the access detection module is connected block with the charging inlet, for detecting the charging inlet
Whether charging equipment is connected with.
5. a kind of intelligent heating Weight-detecting device according to claim 1 or 2 or 3, it is characterised in that：Also include temperature
Judge module, the temperature judge module is connected with the control module, and for detecting environment temperature.
6. a kind of intelligent heating Weight-detecting device according to claim 1 or 2 or 3, it is characterised in that：Also include the time
Detection module, the time detecting module is connected with the control module, and the time detecting module is detected comprising the heat time
Module, the heat time detection module is used to detect the duration of the heating module heated condition.
7. a kind of intelligent heating Weight-detecting device according to claim 6, it is characterised in that：The time detecting module
Current time detection module is also included, for obtaining current time.
8. one kind is based on the application method of intelligent heating Weight-detecting device described in claim 1-7 any one, and its feature exists
In comprising the following steps：
Step 1：Detecting step is accessed, whether detection intelligent heating Weight-detecting device charging inlet has successfully linked up charging
Equipment；
Step 2：Switching step, if the testing result in step 1 is to be successfully connected, opens intelligent heating Weight-detecting device
Heating module, the power supply of the heating module comes from the charging equipment that the charging inlet is accessed；
Step 3：Bodily fat measurement step, user's body fat, institute are measured by the bodily fat measurement module of intelligent heating Weight-detecting device
The power supply for stating bodily fat measurement module comes from the battery module of intelligent heating Weight-detecting device.
9. the application method of a kind of intelligent heating Weight-detecting device according to claim 8, it is characterised in that：Also include
Temperature judges step, when environment temperature is detected higher than preset value, then opens the heating module.
10. the application method of a kind of intelligent heating Weight-detecting device according to claim 8, it is characterised in that：In step
After rapid 3, step also is closed comprising timing, after detecting that the heating module heat time reaches preset value, then disconnect institute
State heating module；Before step 3, also comprising time opening step, when current time reaches Preset Time, the heating is opened
Module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164018.9A CN106887888A (en) | 2017-03-20 | 2017-03-20 | A kind of intelligent heating Weight-detecting device and its application method |
| PCT/CN2017/084833 WO2018171035A1 (en) | 2017-03-20 | 2017-05-18 | Intelligent heating weight measurement apparatus and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710164018.9A CN106887888A (en) | 2017-03-20 | 2017-03-20 | A kind of intelligent heating Weight-detecting device and its application method |
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| CN106887888A true CN106887888A (en) | 2017-06-23 |
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| CN201710164018.9A Pending CN106887888A (en) | 2017-03-20 | 2017-03-20 | A kind of intelligent heating Weight-detecting device and its application method |
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| WO (1) | WO2018171035A1 (en) |
Cited By (1)
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| CN107490424A (en) * | 2017-07-17 | 2017-12-19 | 上海斐讯数据通信技术有限公司 | A kind of Weight-detecting device heating means and system, heating plate control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107490424A (en) * | 2017-07-17 | 2017-12-19 | 上海斐讯数据通信技术有限公司 | A kind of Weight-detecting device heating means and system, heating plate control circuit |
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| Publication number | Publication date |
|---|---|
| WO2018171035A1 (en) | 2018-09-27 |
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