CN214125533U

CN214125533U - Intelligent body fat scale based on Bluetooth technology

Info

Publication number: CN214125533U
Application number: CN202023001169.9U
Authority: CN
Inventors: 龚政; 夏凡
Original assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Current assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-03
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses an intelligent body fat scale based on Bluetooth technology, which comprises a main control module, a body fat sensor module, a weight sensor module, a Bluetooth module, a LED display module, a power supply module, a pyroelectric sensor module and a network module; the body fat sensor module, the weight sensor module, the Bluetooth module, the LED display module, the power supply module, the pyroelectric sensor module and the network module are respectively connected with the main control module; the Bluetooth module is used for connecting a mobile terminal, and the network module is used for connecting a central server of the intelligent home system.

Description

Intelligent body fat scale based on Bluetooth technology

Technical Field

The utility model belongs to intelligence house field especially involves an intelligent body fat balance based on bluetooth.

Background

Along with the rapid development of scientific technology, people gradually enter networked, digitalized and humanized intelligent social life, and the intelligent social life cannot be separated from intelligent household products, so that the life and working level are improved year by year in a multiple relation through good intelligent household products.

In intelligent house product, body fat balance appears in masses' visual field gradually, but does not have an intelligent body fat balance that really is fit for intelligent house at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides an intelligent body fat balance based on bluetooth monitors the health at any time, uses succinctly convenient, satisfies intelligent house demand and user demand.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an intelligent body fat scale based on a Bluetooth technology comprises a main control module, a body fat sensor module, a weight sensor module, a Bluetooth module, an LED display module, a power supply module, a pyroelectric sensor module and a network module; the body fat sensor module, the weight sensor module, the Bluetooth module, the LED display module, the power supply module, the pyroelectric sensor module and the network module are respectively connected with the main control module; the Bluetooth module is used for connecting a mobile terminal, and the network module is used for connecting a central server of the intelligent home system.

Further, the main control module is a high-integration low-power-consumption Bluetooth SOC chip CST34M 97.

Further, the body fat sensor module adopts a CS1256 chip.

Further, the weight sensor module adopts a GML670 chip.

Further, the power module adopts an AMS1117 chip.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides an intelligent body fat scale based on bluetooth can detect that the user's human body is close to obtain user's basic information and the weight body fat information of weighing last time from the central server of intelligent house, show on LED display module, LED display module shows user's this weight, body fat information simultaneously, the person of facilitating the use contrast; and send to the mobile terminal through bluetooth. The utility model discloses monitor human health at any time, it is succinct convenient to use, satisfies intelligent house demand and user demand.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

fig. 2 is a schematic diagram of a body fat sensor chip CS1256 of the present invention;

fig. 3 is a schematic diagram of the bluetooth module of the present invention;

fig. 4 is a schematic diagram of a power module according to the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the control circuit of the present invention includes a main control module, a body fat sensor module, a body weight sensor module, a bluetooth module, an LED display module, a power module, a pyroelectric sensor module, and a network module; the body fat sensor module, the weight sensor module, the Bluetooth module, the LED display module, the power supply module, the pyroelectric sensor module and the network module are respectively connected with the main control module; the Bluetooth module is used for connecting a mobile terminal, and the network module is used for connecting a central server of the intelligent home system.

The main control module is a high-integration-level low-power-consumption Bluetooth SOC chip CST34M 97. CST34M97 is a high-integration Bluetooth low energy SOC chip, based on the Bluetooth low energy 4.1 protocol stack, with 24bit A/D converter highly integrated chip, with 8 internal and 2 external interrupts, with 8 LED driving ports, can drive 56 LEDs at most.

The body fat sensor module adopts CS1256 of Chi-sea technology as a body fat chip, the CS1256 chip internally comprises an ADC signal chain and a body impedance measurement module (BIM), wherein the ADC signal chain comprises input MUXP/MUXN, a programmable low noise gain amplifier (PGA), a Sigma-delta ADC and a Digital Filter; wherein the MUXP/MUXN has 3 internal input channels; the PGA and the ADC have various gain options, and the digital filter can be configured with various output rates. The human body impedance measuring module adopts a sine exciting source, converts human body impedance into a voltage signal and transmits the voltage signal to an ADC signal chain for measurement, and multi-electrode and multi-frequency human body impedance measurement can be supported. The chip circuit schematic is shown in fig. 2. The CS1256 body fat circuit is mainly provided with a filter circuit, a power supply circuit and a protection circuit in basic peripheral circuits.

The weight sensor module adopts a GML670 chip, and the GML670 chip is characterized by a full-bridge structure and is mainly suitable for high-precision human body scales, kitchen scales and other miniature electronic weighing equipment. The 50kg range is selected and the excitation voltage is 3-10 VDS.

The Bluetooth module transmits signals through the antenna, and in the design process of the radio frequency circuit, the transmission line needs to be wrapped by GND, and the routing line needs to keep 50-ohm characteristic impedance. Fig. 3 is a circuit diagram of the bluetooth module.

The power supply module adopts USB input, the power supply input range is 4.5V-5.5V voltage, and the system voltage is 3.3V. The LDO current is not required to be too large, and an AMS1117 series chip is selected as a chip, and specific parameters of the chip are shown in the following table 2. The schematic diagram is shown in fig. 4.

The utility model discloses during the use, detect top and the peripheral scope of this body fat scale through pyroelectric sensor module, walk into the detection range as the user and be detected by pyroelectric sensor module, host system passes through the central server of network module connection intelligence house, equipment such as the camera of central server accessible intelligence house obtain user's image and judge the identity information who is close to the person, then central server draws this user's last measuring weight body fat information transmission and gives host system, host system shows on LED display module. This user uses simultaneously the utility model discloses measure, this measured information also shows on LED display module, and convenient to use person carries out the data contrast, knows from the heavy body fat situation of change of health, and host system sends this measured information to mobile terminal through bluetooth module on, sends the central server of intelligent house with data storage through network module simultaneously.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent body fat scale based on a Bluetooth technology is characterized by comprising a main control module, a body fat sensor module, a weight sensor module, a Bluetooth module, an LED display module, a power supply module, a pyroelectric sensor module and a network module; the body fat sensor module, the weight sensor module, the Bluetooth module, the LED display module, the power supply module, the pyroelectric sensor module and the network module are respectively connected with the main control module; the Bluetooth module is used for connecting a mobile terminal, and the network module is used for connecting a central server of the intelligent home system.

2. The bluetooth technology-based intelligent body fat scale of claim 1, wherein the main control module is a high-integration bluetooth low energy SOC chip CST34M 97.

3. The bluetooth technology-based smart body fat scale of claim 1, wherein the body fat sensor module employs a CS1256 chip.

4. The intelligent body fat scale based on Bluetooth technology of claim 1, wherein the weight sensor module adopts a GML670 chip.

5. The bluetooth technology-based smart body fat scale of claim 1, wherein the power module employs an AMS1117 chip.