CN209627711U - A kind of scale - Google Patents

Abstract

The utility model embodiment discloses a kind of scale.It include: control module, data measurement module and communication module, communication module includes bluetooth unit and Wireless Fidelity unit；Control module includes measurement data receiving port and communication port, and communication port includes bluetooth connection port and Wireless Fidelity connectivity port；Control module is connect by measurement data receiving port with data measurement module；Control module is connect by bluetooth connection port with bluetooth unit；Control module is connect by Wireless Fidelity connectivity port with Wireless Fidelity unit.Wireless Fidelity access information can be transmitted to control module by bluetooth unit by technical solution provided by the embodiment of the utility model, so that control module control Wireless Fidelity unit connects wireless fidelity network, to improve distribution success rate, and easy to operate.

Description

A kind of scale

Technical field

The utility model embodiment is related to physical measurement techniques field more particularly to a kind of scale.

Background technique

Wireless Fidelity (Wireless Fidelity, WIFI) module has the advantages that small in size and low in energy consumption, extensive use In the electronic products such as mobile phone, plate and scale.If the built-in WIFI module in scale, measurement data can pass through WIFI Module is uploaded to background server, and user can pass through application program (Application, letter corresponding in terminal whenever and wherever possible Claim APP) inquiry measurement data.

But when scale uses for the first time, need to connect Wireless Fidelity (Wireless to doctor's type scale Fidelity, WIFI) network, it is not any since the interactive interface that electronic body claims is usually individual digital display panel Keyboard input.Therefore currently used two kinds are user data to the title of scale transmission WIFI network and the mode of password Datagram protocol (User Datagram Protocol, UDP) broadcasts distribution and virtual radio tie point (Soft Access Point) Distribution.

For udp broadcast distribution, the WIFI module of scale passes through external key or other are operated into the monitoring mould of UDP Formula is monitored from the udp broadcast protocol package by APP setting corresponding in terminal, therefrom parses the WIFI net for needing to connect Then the title and password of network go to connect the WIFI network.But this is lower with net mode success rate, is interfered by outside ratio Larger, user, which usually requires to operate, could repeatedly match successfully.For SoftAp distribution, the WIFI module of scale is pressed by outside Key or other operation one hot spots of self-generating, terminal need to first disconnect the WIFI network oneself connected, then pass through itself WIFI module connects the upper hot spot, then the title and password of the Wi-Fi that doctor's type scale is needed to connect pass through in terminal accordingly APP is sent to scale.This operation needs user actively to go to switch connected WIFI network, and process is relatively cumbersome.

Utility model content

The utility model provides a kind of scale, improves scale distribution success rate to realize, and simplify user's distribution Operation.

In a first aspect, the utility model embodiment provides a kind of scale, which includes: control module, data Measurement module and communication module, communication module include bluetooth unit and Wireless Fidelity unit；

Control module includes measurement data receiving port and communication port, and communication port includes bluetooth connection end Mouth and Wireless Fidelity connectivity port；Control module is connect by measurement data receiving port with data measurement module；Control module It is connect by bluetooth connection port with bluetooth unit, for receiving the Wireless Fidelity access information transmitted through bluetooth unit；Control Module is connect by Wireless Fidelity connectivity port with Wireless Fidelity unit, is connect for controlling Wireless Fidelity unit according to Wireless Fidelity Enter information connection wireless fidelity network, and for weight data to be transmitted to server by Wireless Fidelity unit.

Optionally, Wireless Fidelity connectivity port includes the first data sending terminal mouth, the first data receiver port and connection Indicate receiving port；Bluetooth connection port includes the second data receiver port；

Wireless Fidelity unit includes third data sending terminal mouth, third data receiver port and connection instruction transmitting terminal Mouthful；

Bluetooth unit includes the 4th data sending terminal mouth；

First data sending terminal mouth is connect with third data receiver port, for sending Wireless Fidelity to Wireless Fidelity unit Access information and weight data；First data receiver port is connect with third data sending terminal mouth, is received for receiving data It replys；Connection instruction receiving port is connected with instruction sending port is connect, for receiving successful connection notice；

Second data receiver port is connect with the 4th data sending terminal mouth, for receiving Wireless Fidelity access information.

Optionally, bluetooth connection port further includes the second data sending terminal mouth；Bluetooth unit further includes the 4th data receiver Port；

Second data sending terminal mouth is connect with the 4th data receiver port, for sending weight to the 4th data receiver port Data.

Optionally, Wireless Fidelity unit includes Wireless Fidelity chip, first resistor and second resistance；Wireless Fidelity chip On be provided with third data sending terminal mouth, third data receiver port and connection instruction sending port；

Third data sending terminal mouth is connect by first resistor with the first data receiver port, and third data receiver port is logical Second resistance is crossed to connect with the first data sending terminal mouth.

Optionally, bluetooth unit includes Bluetooth chip, antenna matching unit, crystal oscillator matching unit, 3rd resistor and Four resistance；The 4th data sending terminal mouth, the 4th data receiver port, crystal oscillator matching port and antenna are provided on Bluetooth chip Match port；

4th data sending terminal mouth is connect by 3rd resistor with the second data receiver port, and the 4th data receiver port is logical The 4th resistance is crossed to connect with the second data sending terminal mouth；

Bluetooth chip matches port by crystal oscillator and connect with crystal oscillator matching unit, and crystal oscillator matching unit is used to be Bluetooth chip Match crystal oscillator；Bluetooth chip is connect by antenna match port with antenna matching unit, and antenna matching unit is used to be bluetooth core Piece matches antenna.

Optionally, crystal oscillator matching unit includes first capacitor, the second capacitor and crystal oscillator；It includes simulation that crystal oscillator, which matches port, Input port and simulation output port；

The first end of crystal oscillator is connect with the first end of simulation input port and first capacitor respectively, the second end point of crystal oscillator It is not connect with the first end of simulation output port and the second capacitor, the second end of the second end of first capacitor and the second capacitor It is grounded.

Optionally, antenna matching unit include the first inductance, the second inductance, third inductance, the 4th capacitor, the 5th capacitor, 6th capacitor, the 7th capacitor, the 8th capacitor and antenna；Antenna match port includes second source decoupling port, radio frequency amplification Output port of power source, the first prevention at radio-frequency port and the second prevention at radio-frequency port；

The first end of first inductance is connect with the first end of the second prevention at radio-frequency port and the 4th capacitor respectively, the 4th capacitor Second end is connect with the first end of the first end of the second inductance and the 5th capacitor respectively, and the second end of the second inductance is respectively with The first end and antenna of six capacitors connect, the second end of the 5th capacitor and the second end ground connection of the 6th capacitor；Third inductance First end connect respectively with the second end of the first inductance and the first prevention at radio-frequency port, the second end of third inductance respectively with radio frequency Amplify the first end connection of output port of power source and the 7th capacitor, the second end ground connection of the 7th capacitor；Second source decoupling end Mouth passes through the 8th capacity earth.

Optionally, data measurement module includes measured body weight unit and bodily fat measurement unit；Measured body weight unit includes body Sending port is fed back again；Bodily fat measurement unit includes body fat feedback sending port；

Measurement data receiving port includes weight feedback reception port and body fat feedback reception port；

Weight feedback sending port is connect with weight feedback reception port, for sending weight feedback letter to control module Number；

Body fat feedback sending port is connect with body fat feedback reception port, for sending body fat feedback letter to control module Number.

Optionally, scale further includes power module, power module include the first power supply unit, the second power supply unit and Third power supply unit, includes the first supply port on the first power supply unit, and the second power supply unit includes the second supply port, third Power supply unit includes that third supply port and Wireless Fidelity power and enable receiving port；Control module further includes Wireless Fidelity power supply Enabled sending port；

First power supply unit is connect by the first supply port with control module and bluetooth unit, for being control module And bluetooth unit power supply；

Second power supply unit is connect by the second supply port with data measurement module, for supplying to data measurement module Electricity；

Wireless Fidelity power supply enable port and Wireless Fidelity enabled receiving port of powering are connect, and third power supply unit passes through the Three supply ports are connect with Wireless Fidelity unit, and control module is for controlling third power supply unit as the power supply of Wireless Fidelity unit.

Optionally, scale further includes display module, and control module further includes display connectivity port；

Control module shows weight data by showing that connectivity port is connect with display module, for controlling display module.

Wireless Fidelity access information is transmitted to control module by bluetooth unit by the utility model, so that control module control Wireless Fidelity unit processed connects wireless fidelity network, solve it is in the prior art with net mode bring distribution success rate it is low and The cumbersome problem of user's operation is realized and improves scale distribution success rate, and simplifies the effect that user matches net operation.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of scale provided by the embodiment of the utility model；

Fig. 2 is a kind of circuit element diagram of scale provided by the embodiment of the utility model；

Fig. 3 is a kind of circuit element diagram of control module provided by the embodiment of the utility model；

Fig. 4 is a kind of circuit element diagram of Wireless Fidelity unit provided by the embodiment of the utility model；

Fig. 5 is a kind of circuit element diagram of bluetooth unit provided by the embodiment of the utility model；

Fig. 6 is a kind of circuit element diagram of data measurement module provided by the embodiment of the utility model；

Fig. 7 is a kind of circuit element diagram of power module provided by the utility model.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.

Fig. 1 is a kind of structural schematic diagram of scale provided by the embodiment of the utility model.Referring to Fig. 1, the scale packet Include: control module 20, data measurement module 10 and communication module 30, communication module 30 include bluetooth unit 32 and Wireless Fidelity list Member 31, control module 20 include measurement data receiving port and communication port, and communication port includes bluetooth connection end Mouth and Wireless Fidelity connectivity port；Control module 20 is connect by measurement data receiving port with data measurement module 10；Control Module 20 is connect by bluetooth connection port with bluetooth unit 32, for receiving the Wireless Fidelity transmitted through bluetooth unit 32 access Information；Control module 20 is connect by Wireless Fidelity connectivity port with Wireless Fidelity unit 31, for controlling Wireless Fidelity unit 31 connect wireless fidelity network according to Wireless Fidelity access information, and for being transmitted weight data by Wireless Fidelity unit 31 To server.

Illustratively, user terminal matching is provided with the APP for receiving and showing weight information, APP starting Open the included bluetooth unit of user terminal.Scale it is as follows with network process: when scale is connect with WIFI network for the first time When, bluetooth unit 32 of the APP of user terminal through the bluetooth unit of terminal and scale passes the access information of WIFI network Control module 20 is transported to, control module 20 controls Wireless Fidelity (Wireless Fidelity, WIFI) unit and accesses according to WIFI Information connects WIFI network.

Illustratively, the course of work of scale is as follows: data measurement module 10 feeds back the weight for carrying weight information Signal is sent to control module 20, and control module 20 determines weight data according to weight feedback signal, and control module 20 passes through Weight data is uploaded to server by WIFI unit, after user terminal A PP is opened, can download weight data from server.

Wireless Fidelity access information is transmitted to control module 20 by bluetooth unit 32 by the utility model, so that control mould Block 20 controls Wireless Fidelity unit 31 and connects wireless fidelity network, solves in the prior art with net mode bring distribution success The problem that rate is low and user's operation is cumbersome is realized and improves scale distribution success rate, and simplifies the effect that user matches net operation Fruit.

Based on the above technical solution, optionally, Wireless Fidelity connectivity port includes the first data sending terminal mouth, the One data receiver port and connection instruction receiving port；Bluetooth connection port includes the second data receiver port；Wireless Fidelity Unit 31 includes third data sending terminal mouth, third data receiver port and connection instruction sending port；Bluetooth unit 32 wraps Include the 4th data sending terminal mouth；First data sending terminal mouth is connect with third data receiver port, is used for Wireless Fidelity unit 31 send Wireless Fidelity access information and weight data；First data receiver port is connect with third data sending terminal mouth, is used It is replied in receiving data receiver；Connection instruction receiving port is connected with instruction sending port is connect, logical for receiving successful connection Know；Second data receiver port is connect with the 4th data sending terminal mouth, for receiving Wireless Fidelity access information.

Based on the above technical solution, optionally, bluetooth connection port further includes the second data sending terminal mouth；Bluetooth Unit 32 further includes the 4th data receiver port；Second data sending terminal mouth is connect with the 4th data receiver port, for the Four data receiver ports send weight data.The advantages of this arrangement are as follows control module 20 can be direct by bluetooth unit 32 Weight data is transmitted to user terminal, so that the APP of user terminal shows weight data.

Illustratively, the course of work of scale is as follows: data measurement module 10 feeds back the weight for carrying weight information Signal is sent to control module 20, and control module 20 determines weight data according to weight feedback signal, if user terminal A PP is in Open state, control module 20 are passed weight data by the bluetooth unit 32 of scale and the bluetooth unit 32 of user terminal Transport to user terminal；If user terminal A PP is not in open state, control module 20 will be on weight data by WIFI unit Server is reached, after user terminal A PP is opened, weight information can be downloaded from server.

There are many specific setting methods of above-mentioned technical proposal, is described in detail below with regard to typical case, but do not constitute Limitation to the application.

Fig. 2 is a kind of circuit element diagram of doctor's type scale provided by the embodiment of the utility model.Referring to Fig. 1-2, the scale Including control module 20, data measurement module 10 (Fig. 2 is not shown) and communication module 30, communication module 30 includes Wireless Fidelity list Member 31 and bluetooth unit 32.

Fig. 3 is a kind of circuit element diagram of control module provided by the embodiment of the utility model.Fig. 4 is the utility model reality A kind of circuit element diagram of Wireless Fidelity unit of example offer is provided.- Fig. 4 referring to fig. 2, control module 20 include microcontrol processor BH66F2650.Wireless Fidelity unit 31 includes Wireless Fidelity chip HF-LPB120, first resistor R1 and second resistance R2.Nothing It is provided with third data sending terminal mouth TX3, third data receiver port RX3 on line fidelity chip HF-LPB120 and connection refers to Show that sending port GPIO_15/nlink, third data sending terminal mouth TX3 pass through first resistor R1 and the first data receiver port RX1 connection, third data receiver port RX3 are connect by second resistance R2 with the first data sending terminal mouth TX1, connection instruction hair Sending end mouth GPIO_15/nlink with connect instruction receiving port PD0 connection.

With continued reference to Fig. 2-Fig. 4, Wireless Fidelity chip HF-LPB120 further include WIFI reset signal input port REST, WIFI starts indication output end mouth GPIO_18/NREADY and WIFI factory reset input port GPIO_2/NRELOAD. Microcontrol processor BH66F2650 further include WIFI reset signal output port PA7, WIFI starting instruction input port PD1 with And WIFI factory reset output port PC3.WIFI reset signal input port REST and WIFI reset signal output port PA7 connection, for receiving the WIFI reset instruction of microcontrol processor BH66F2650 transmission；WIFI starts indication output end mouth GPIO_18/NREADY starts instruction input port PD1 with WIFI and connect, for sending just to microcontrol processor BH66F2650 Often starting notice；WIFI factory reset input port GPIO_2/NRELOAD and WIFI factory reset output port PC3 connection, for receiving the factory reset instruction of microcontrol processor BH66F2650 transmission.

Fig. 5 is a kind of circuit element diagram of bluetooth unit provided by the embodiment of the utility model.Referring to fig. 2, Fig. 3 and figure 5, bluetooth unit 32 include Bluetooth chip nRF51822, antenna matching unit 322, crystal oscillator matching unit 321,3rd resistor R3 with And the 4th resistance R4；Be provided on Bluetooth chip nRF51822 the 4th data sending terminal mouth TX4, the 4th data receiver port RX4, Crystal oscillator matches port and antenna match port, and the 4th data sending terminal mouth TX4 passes through 3rd resistor R3 and the second data receiver Port RX2 connection, the 4th data receiver port RX4 are connect by the 4th resistance R4 with the second data sending terminal mouth TX2, bluetooth core Piece nRF51822 matches port by crystal oscillator and connect with crystal oscillator matching unit 321, and crystal oscillator matching unit 321 is for matching bluetooth core Piece nRF51822 and crystal oscillator Y1；Bluetooth chip nRF51822 is connect by antenna match port with antenna matching unit 322, antenna Matching unit 322 is for matching Bluetooth chip nRF51822 and antenna J1.

With continued reference to Fig. 2 and Fig. 5, Bluetooth chip nRF51822 further includes BLE reset signal input port nREST, receives It indicates input port P0.02 and sends indication output end mouth P0.03.Microcontrol processor BH66F2650 further includes that BLE resets Signal output port PB0, it receives indication output end mouth PC4 and sends instruction input port PB1.BLE reset signal input terminal Mouth nREST is connect by the 6th resistance R6 with BLE reset signal output port PB0, for receiving microcontrol processor The BLE reset instruction that BH66F2650 is sent；Instruction input terminal P0.02 is received by the 5th resistance R5 and receives indication output end PC4 connection, for receiving the data receiver notice of microcontrol processor BH66F2650 transmission, i.e. microcontrol processor BH66F2650 notice Bluetooth chip nRF51822 will have data to be delivered to Bluetooth chip nRF51822；Send indication output end P0.03 is connect with instruction input terminal PB1 is sent, and sends notice for sending data to microcontrol processor BH66F2650, i.e., blue Tooth chip nRF51822 notice microcontrol processor BH66F2650 will have data transmission to be delivered to microcontrol processor BH66F2650。

With continued reference to Fig. 5, optionally, crystal oscillator Y1 matching unit 321 includes first capacitor C1, the second capacitor C2 and crystal oscillator Y1；It includes simulation input port XC1, simulation output port x C2 that crystal oscillator, which matches port,；

The first end of crystal oscillator Y1 is connect with the first end of simulation input port XC1 and first capacitor C1 respectively, crystal oscillator Y1 Second end connect respectively with the first end of simulation output port x C2 and the second capacitor C2, the second end of first capacitor C1 with And second the second end of capacitor C2 be grounded GND.

Optionally, antenna J1 matching unit 322 includes the first inductance L1, the second inductance L2, third inductance L3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8 and antenna J1；Antenna match port includes second Power decoupling port DEC2, radio frequency amplification output port of power source VDD_PA, the first prevention at radio-frequency port ANT1 and the second prevention at radio-frequency port ANT2；

The first end of first inductance L1 is connect with the first end of the second prevention at radio-frequency port ANT2 and the 4th capacitor C4 respectively, the The second end of four capacitor C4 is connect with the first end of the first end of the second inductance L2 and the 5th capacitor C5 respectively, the second inductance L2 Second end connect respectively with the first end of the 6th capacitor C6 and antenna J1, the second end and the 6th capacitor of the 5th capacitor C5 The second end of C6 is grounded GND；The first end of third inductance L3 respectively with the second end and the first prevention at radio-frequency port of the first inductance L1 ANT1 connection, the second end of third inductance L3 respectively with radio frequency amplification output port of power source VDD_PA and the 7th capacitor C7 the The second end of one end connection, the 7th capacitor C7 is grounded GND；Second source decouples port DEC2 and is grounded GND by the 8th capacitor C8.

Based on the above technical solution, optionally, data measurement module includes that measured body weight unit 11 and body fat are surveyed Measure unit 12；Measured body weight unit 11 includes that weight feeds back sending port；Bodily fat measurement unit 12 includes that body fat feeds back transmitting terminal Mouthful；Measurement data receiving port includes weight feedback reception port and body fat feedback reception port；Weight feed back sending port with Weight feedback reception port connection, for sending weight feedback signal to control module；Body fat feeds back sending port and body fat is anti- Receiving port connection is presented, for sending body fat feedback signal to control module.

Fig. 6 is a kind of circuit element diagram of data measurement module provided by the embodiment of the utility model.Referring to Fig. 6, data Measurement module includes measured body weight unit 11 and bodily fat measurement unit 12, and it includes the first weight feedback hair that weight, which feeds back sending port, Sending end mouth and the second weight feed back sending port, and weight feedback reception port includes the first weight feedback reception port and the second body Weight feedback reception port.

With continued reference to Fig. 6, measured body weight unit 11 includes full-bridge type sensor group, the 39th capacitor C39, the 40th electricity Hold C40 and the 41st capacitor C41；Full-bridge type sensor group includes first sensor S1, second sensor S2, third sensing Device S3 and the 4th sensor S4.The first end of first sensor S1 is connect with the third end of second sensor S2, the first sensing The second end of device S1 is connect with power module, and the third end of first sensor S1 is connect with the first end of the 4th sensor S4；The The first end of two sensor S2 is connect with the third end of 3rd sensor S3, and (the first weight is anti-for the second end of second sensor S2 Present sending port) with first analog-to-digital conversion input port AN0 (the first weight feedback reception of microcontrol processor BH66F2650 Port) it connects, the second end of second sensor S2 is grounded GND by the 39th capacitor C39；The first end of 3rd sensor S3 It is connect with the third end of the 4th sensor S4, the second end of 3rd sensor S3 is grounded GND；The second end of 4th sensor S4 Second analog-to-digital conversion input port AN1 (second body of (the second weight feeds back sending port) with microcontrol processor BH66F2650 Weight feedback reception port) it connects, the second end of the 4th sensor S4 is grounded GND by the 40th capacitor C40；Second sensor S2 Second end and the second end of 3rd sensor S3 between connect the 41st capacitor C41.

Wherein, first sensor S1, second sensor S2,3rd sensor S3 and the 4th sensor S4 are that pressure passes Sensor.In addition, it should be noted that, the 39th capacitor C39, the 40th capacitor C40 and the 41st capacitor C41 play filter The effect of wave prevents interference of the noise to weight feedback signal.

With continued reference to Fig. 6, bodily fat measurement unit 12 includes the 35th capacitor C35, the 36th capacitor C36, the 30th Seven capacitor C37, the 38th capacitor C38, the 42nd capacitor C42, eleventh resistor R11, twelfth resistor R12, the 13rd Resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21 and the 22nd resistance R22.

The first end of eleventh resistor R11 is connect with power module, and the second end of eleventh resistor R11 is respectively with the 12nd The first end of resistance R12, the peak detector input port CP0N of microcontrol processor BH66F2650 and the 38th capacitor The first end of C38 connects；The second end of twelfth resistor R12 respectively with the first end of the 35th capacitor C35, the 36th electricity Hold the first end connection of the first end of C36, the first end of the 14th resistance R14 and the 37th capacitor C37, twelfth resistor The second end of R12 is grounded GND；The second end of 36th capacitor C36 respectively with the first end and micro-control of thirteenth resistor R13 The third analog-to-digital conversion input port AN2 connection of processor BH66F2650 processed, the second end of thirteenth resistor R13 is respectively with The modulus of the second end of 35 capacitor C35, the second end of the 14th resistance R14 and microcontrol processor BH66F2650 turns The port RFC connection of parallel operation simulation input；The second end of the 37th capacitor C37 second end with the 38th capacitor C38 respectively And the 15th resistance R15 first end connection, the second end of the 15th resistance R15 and microcontrol processor BH66F2650's The TO connection of operation amplifier output port.First electrode sheet e1 passes through the 16th resistance R16's and microcontrol processor BH66F2650 Right crus of diaphragm passes through the 17th resistance R17's and microcontrol processor BH66F2650 with signal port FVR connection, second electrode sheet e2 Right crus of diaphragm slaps signal port FIR connection, and third electrode slice e3 passes through the 20th resistance R20's and microcontrol processor BH66F2650 Left foot slaps signal port FIL connection, and the 4th electrode slice e4 passes through the 21st resistance R21 and microcontrol processor BH66F2650 The FVL connection of left heel signal port.The first end of 18th resistance R18 respectively with microcontrol processor BH66F2650 Two reference impedance access port RF2 connections, the second end of the 18th resistance R18 respectively with the second end of the 19th resistance R19, The second end of 22 resistance R22 and the reference impedance access port RF connection of microcontrol processor BH66F2650, the 19th The first end of resistance R19 is connect with the first reference impedance access port RF1 of microcontrol processor BH66F2650, and the 22nd The first end of resistance R22 is connected to the sinewave output port of microcontrol processor BH66F2650 by the 12nd capacitor C12 SIN。

Wherein, body fat circuit is built-in in microcontrol processor BH66F2650.Illustratively, bodily fat measurement working principle As follows: the sine wave detection electric current of the sinewave output port SIN output of microcontrol processor BH66F2650 passes through third electrode Piece e3 flows into the human body left foot palm and followed by left heel, right crus of diaphragm with, the right crus of diaphragm palm, flows back to finally by second electrode sheet e2 micro- The right crus of diaphragm of control processor BH66F2650 slaps signal port FIR, thus measures impedance between bipod, that is, between electrode slice e1 and e4 Impedance, and then obtain body fat data.

Wherein, the 42nd capacitor C42 plays the role of obstructing direct current, and the 22nd resistance R22 plays current limliting.

Based on the above technical solution, optionally, scale further includes power module, and power module includes the first confession Electric unit 61, the second power supply unit 62 and third power supply unit 63 include the first supply port on first power supply unit 61, the Two power supply units 62 include the second supply port, and third power supply unit 63 includes that third supply port and Wireless Fidelity power supply are enabled Receiving port；Control module further includes the enabled sending port of Wireless Fidelity power supply；First power supply unit 61 passes through the first feeder ear Mouth is connect with control module and bluetooth unit, for powering for control module and bluetooth unit；Second power supply unit 62 is logical It crosses the second supply port to connect with data measurement module, for powering to data measurement module；Wireless Fidelity power supply is enabled to be sent Port is connect with the enabled receiving port of Wireless Fidelity power supply, and third power supply unit 63 passes through third supply port and Wireless Fidelity list Member connection, control module is for controlling third power supply unit 63 as the power supply of Wireless Fidelity unit.

Optionally, scale further includes display module, and control module further includes display connectivity port；Control module passes through aobvious Show that connectivity port is connect with display module, shows weight data for controlling display module.The advantages of this arrangement are as follows convenient User intuitively obtains display weight data.

Optionally, power module further includes the 4th power supply unit 64, the 4th power supply unit 64 include the 4th supply port and Display, which is powered, enables receiving port, and control module further includes the enabled sending port of display power supply.Display, which is powered, enables sending port It is connect with the enabled receiving port of display power supply, the 4th power supply unit 64 is connect by the 4th supply port with display module, is controlled Module is for controlling the 4th power supply unit 64 as display module power supply.

It should be noted that Wireless Fidelity unit at the time of sending or receiving data, can cause voltage dithering；Show mould Block can also cause voltage dithering in display data procedures.By the way that Wireless Fidelity unit, display module and other modules are separated It is independently-powered, power module can be enabled to provide stable power supply for data measurement module, not by Wireless Fidelity unit with And the influence of display module.

There are many specific set-up modes of power module, is described in detail below with regard to typical case, but does not constitute to this The limitation of application.

Fig. 7 is a kind of circuit element diagram of power module provided by the utility model.Referring to Fig. 6 and Fig. 7, power module packet Include the first power supply unit 61, the second power supply unit 62, third power supply unit 63 and the 4th power supply unit 64, the 4th power supply unit 64 for display module for powering.

First power supply unit 61 includes the first low voltage difference positive regulator device AP1122, the 15th capacitor C15, the 16th capacitor C16, the 17th capacitor C17, the 18th capacitor C18 and the 7th resistance R7.The input of first low voltage difference positive regulator device AP1122 End VIN1 is connect with the first end of the positive B+ of external power supply and the 15th capacitor C15 respectively, and the second of the 15th capacitor C15 End is grounded GND by the 7th resistance R7；The ground terminal GND5 of first low voltage difference positive regulator device AP1122 is grounded GND；First low pressure The output end VOUT1 of poor positive regulator device AP1122 is grounded GND by the 17th capacitor C17；The electricity of 16th capacitor C16 and the 15th It is in parallel to hold C15, the 18th capacitor C18 is in parallel with the 17th capacitor C17；The output end of first low voltage difference positive regulator device AP1122 VOUT1 is the first supply port.

With continued reference to Fig. 6 and Fig. 7, the second power supply unit 62 further includes the 32nd capacitor C32, the 33rd capacitor C33 And the 34th capacitor C34.The first end of 32nd capacitor C32 is with microcontrol processor BH66F2650 just with reference to defeated Inbound port VREFP connection, the second end of the 32nd capacitor C32 and the negative reference input of microcontrol processor BH66F2650 The second end of mouth VREFN connection, the 32nd capacitor C32 is grounded GND；33rd capacitor C33 and the 32nd capacitor C32 are simultaneously Connection；The common mode input port VCM of microcontrol processor BH66F2650 is grounded GND by the 34th capacitor C34.At microcontroller The positive reference input port VREFP for managing device BH66F2650 is the second supply port.

Specifically, microcontrol processor BH66F2650 is built-in with low voltage difference line style voltage-stablizer, the low voltage difference line style voltage-stablizer The voltage for inputting microcontrol processor BH66F2650 is converted into the voltage used for data measurement module.

Third power supply unit 63 includes the second low voltage difference positive regulator device AP2112, the 19th capacitor C19, the 20th capacitor C20, the 21st capacitor C21, the 22nd capacitor C22, the 23rd capacitor C23, the 24th capacitor C24, the 25th Capacitor C25, the 26th capacitor C26, the 8th resistance R8 and the 9th resistance R9.Second low voltage difference positive regulator device AP2112's is defeated Enter to hold VIN2 to connect respectively with the first end of the positive B+ of external power supply, the first end of the 19th capacitor C19 and the 8th resistance R8 It connects, second end the ground connection GND, the 20th capacitor C20 and the 21st capacitor C21 of the 19th capacitor C19 is electric with the 19th It is in parallel to hold C19；The ground terminal GND6 of second low voltage difference positive regulator device AP2112 is grounded GND；Second low voltage difference positive regulator device The enable end EN1 of AP2112 is connect with the second end of the second end of the 8th resistance R8 and the 9th resistance R9 respectively, the 9th resistance The first end (Wireless Fidelity, which is powered, enables receiving port) of R9 is connect with the enabled sending port PA5 of Wireless Fidelity power supply；Second is low The front of motor NC of pressure difference positive regulator device AP2112 is grounded GND by the 22nd capacitor C22；Second low voltage difference positive regulator device The output end VOUT2 of AP2112 is grounded GND, the 24th capacitor C24, the 25th capacitor C25 by the 23rd capacitor C23 And the 26th capacitor C26 it is in parallel with the 23rd capacitor C23, the output end of the second low voltage difference positive regulator device AP2112 VOUT2 is third supply port.

4th power supply unit 64 includes third low voltage difference positive regulator device HL53R33, the 27th capacitor C27, the 28th Capacitor C28, the 29th capacitor C29, the 30th capacitor C30 and the tenth resistance R10.Third low voltage difference positive regulator device The input terminal VIN3 of HL53R33 is connect with the first end of the positive B+ of external power supply, the 27th capacitor C27 respectively, and the 20th The second end of seven capacitor C27 is grounded GND, and the 28th capacitor C28 is in parallel with the 27th capacitor C27；Second low voltage difference is just adjusted The ground terminal GND8 for saving device AP2112 is grounded GND；(display power supply makes the enable end EN2 of third low voltage difference positive regulator device HL53R33 Energy input port) it is connect by the tenth resistance R10 with the enabled output port PA6 of display power supply；Third low voltage difference positive regulator device The output end VOUT3 of HL53R33 is grounded GND, the 29th capacitor C29 and the 30th capacitor C30 by the 29th capacitor C29 It is in parallel；The output end VOUT3 of third low voltage difference positive regulator device HL53R33 is the 4th supply port.

Specifically, external power supply can be dry cell or rechargeable lithium battery.

Based on the above technical solution, with continued reference to Fig. 6, optionally, power module further includes electric power detection unit 65, electric power detection unit 65 includes the 23rd resistance R23 and the 24th resistance R24.The first end of 24th resistance R24 With external power supply anode connect, the second end of the 24th resistance R24 respectively with the first end of the 23rd resistance R23 and The 4th analog-to-digital conversion input port AN3 connection of microcontrol processor BH66F2650, the second termination of the 23rd resistance R23 Ground GND.

Correspondingly, display module can also show the charge condition of external power supply.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (10)

1. a kind of scale characterized by comprising control module, data measurement module and communication module, the communication module Including bluetooth unit and Wireless Fidelity unit；

The control module includes measurement data receiving port and communication port, and the communication port includes that bluetooth connects Connect port and Wireless Fidelity connectivity port；The control module passes through the measurement data receiving port and the DATA REASONING mould Block connection；The control module is connect by the bluetooth connection port with the bluetooth unit, for receiving through the bluetooth The Wireless Fidelity access information of unit transmission；The control module passes through the Wireless Fidelity connectivity port and the Wireless Fidelity Unit connection connects wireless fidelity network according to the Wireless Fidelity access information for controlling the Wireless Fidelity unit, and For weight data to be transmitted to server by the Wireless Fidelity unit.

2. scale according to claim 1, which is characterized in that sent out including the first data the Wireless Fidelity connectivity port Sending end mouth, the first data receiver port and connection instruction receiving port；The bluetooth connection port includes the second data receiver Port；

The Wireless Fidelity unit includes third data sending terminal mouth, third data receiver port and connection instruction transmitting terminal Mouthful；

The bluetooth unit includes the 4th data sending terminal mouth；

The first data sending terminal mouth is connect with the third data receiver port, for sending to the Wireless Fidelity unit The Wireless Fidelity access information and the weight data；First data receiver port and the third data sending terminal Mouth connection, receives reply for receiving data；The connection instruction receiving port and connection instruction sending port connection, are used It is notified in receiving successful connection；

Second data receiver port is connect with the 4th data sending terminal mouth, for receiving the Wireless Fidelity access letter Breath.

3. scale according to claim 2, which is characterized in that the bluetooth connection port further includes that the second data are sent Port；The bluetooth unit further includes the 4th data receiver port；

The second data sending terminal mouth is connect with the 4th data receiver port, is used for the 4th data receiver port Send the weight data.

4. scale according to claim 2, which is characterized in that the Wireless Fidelity unit include Wireless Fidelity chip, First resistor and second resistance；The third data sending terminal mouth is provided on the Wireless Fidelity chip, third data connect Receiving end mouth and connection instruction sending port；

The third data sending terminal mouth is connect by the first resistor with the first data receiver port, and the third data connect Receiving end mouth is connect by the second resistance with the first data sending terminal mouth.

5. scale according to claim 3, which is characterized in that the bluetooth unit includes Bluetooth chip, antenna match Unit, crystal oscillator matching unit, 3rd resistor and the 4th resistance；The 4th data sending terminal is provided on the Bluetooth chip Mouth, the 4th data receiver port, crystal oscillator matching port and antenna match port；

The 4th data sending terminal mouth is connect by the 3rd resistor with second data receiver port, the 4th number It is connect by the 4th resistance with the second data sending terminal mouth according to receiving port；

The Bluetooth chip matches port by the crystal oscillator and connect with the crystal oscillator matching unit, and the crystal oscillator matching unit is used In for the Bluetooth chip match crystal oscillator；The Bluetooth chip is connected by the antenna match port and the antenna matching unit It connects, the antenna matching unit is used to match antenna for the Bluetooth chip.

6. scale according to claim 5, which is characterized in that the crystal oscillator matching unit includes first capacitor, second Capacitor and crystal oscillator；Crystal oscillator matching port includes simulation input port and simulation output port；

The first end of the crystal oscillator is connect with the first end of the simulation input port and the first capacitor respectively, the crystalline substance The second end of vibration is connect with the first end of the simulation output port and second capacitor respectively, and the of the first capacitor The second end of two ends and second capacitor is grounded.

7. scale according to claim 5, which is characterized in that the antenna matching unit includes the first inductance, second Inductance, third inductance, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor and antenna；The antenna It include second source decoupling port, radio frequency amplification output port of power source, the first prevention at radio-frequency port and the second prevention at radio-frequency port with port；

The first end of first inductance is connect with the first end of second prevention at radio-frequency port and the 4th capacitor respectively, institute The second end for stating the 4th capacitor is connect with the first end of the first end of second inductance and the 5th capacitor respectively, described The second end of second inductance is connect with the first end of the 6th capacitor and the antenna respectively, and the second of the 5th capacitor The second end of end and the 6th capacitor ground connection；The first end of the third inductance second end with first inductance respectively And first prevention at radio-frequency port connection, the second end of the third inductance amplify respectively with the radio frequency output port of power source with And the first end connection of the 7th capacitor, the second end ground connection of the 7th capacitor；Second source decoupling port passes through 8th capacity earth.

8. scale according to claim 1, which is characterized in that the data measurement module include measured body weight unit and Bodily fat measurement unit；The measured body weight unit includes weight feedback sending port；The bodily fat measurement unit includes that body fat is anti- Present sending port；

The measurement data receiving port includes weight feedback reception port and body fat feedback reception port；

The weight feedback sending port is connect with weight feedback reception port, for sending weight to the control module Feedback signal；

The body fat feedback sending port is connect with body fat feedback reception port, for sending body fat to the control module Feedback signal.

9. scale according to claim 1, which is characterized in that further include power module, the power module includes the One power supply unit, the second power supply unit and third power supply unit include the first supply port, institute on first power supply unit Stating the second power supply unit includes the second supply port, and the third power supply unit includes third supply port and Wireless Fidelity power supply Enabled receiving port；The control module further includes the enabled sending port of Wireless Fidelity power supply；

First power supply unit is connect by first supply port with the control module and the bluetooth unit, is used It powers in for the control module and the bluetooth unit；

Second power supply unit is connect by second supply port with the data measurement module, is used for the data Measurement module power supply；

The Wireless Fidelity power supply enable port is connect with the enabled receiving port of Wireless Fidelity power supply, and the third power supply is single Member is connect by the third supply port with the Wireless Fidelity unit, and the control module is for controlling the third power supply Unit is Wireless Fidelity unit power supply.

10. scale according to claim 1, which is characterized in that further include display module, the control module further includes Show connectivity port；

The control module is connect by the display connectivity port with the display module, aobvious for controlling the display module Show the weight data.