CN104042207A - Intelligent bracelet with feedback and relaxing functions - Google Patents

Abstract

The invention discloses a smart wristband with a feedback relaxation function, comprising a sensor module, a central processing unit, an output module, a wireless communication module and a power supply module, the sensor module is electrically connected to the central processing unit, and the central processing unit The unit is electrically connected to the output module, the central processing unit is also connected to the wireless communication module, and the sensor module, the central processing unit and the wireless communication module are all connected to the power supply module. By adopting the technical solution of the present invention, not only can real-time detection of physiological signals such as electrocardiogram, pulse wave, and skin impedance of the wearer of the wristband be performed, but also through real-time analysis of the physiological signals, the wearer of the wristband can be guided to perform relaxation training to relieve psychological tension. It is beneficial for the wearer of the bracelet to maintain mental health.

Description

Smart bracelet with feedback relaxation function

technical field

The invention relates to an intelligent bracelet, in particular to an intelligent bracelet with a feedback relaxation function.

Background technique

The pace of life in today's society is constantly accelerating, and the resulting pressure has caused a variety of physical or psychological problems for people. While the standard of living has improved, many people have begun to pay attention to their mental health. However, physical and mental health cannot only rely on drugs and counseling, but also rely on the body's own ability to relax and adjust, so as to relieve stress and maintain mental health. the goal of.

With the development of sensing detection and electronic technology, a large number of smart bracelets with functions such as physiological signal detection, information storage, intelligent reminder, and interconnection with smartphones have appeared on the market, making the bracelet beyond the original decorative function. More practical purposes are added, which facilitates people's life. However, the existing smart bracelets on the market do not have the function of collecting the user's physiological parameters to provide feedback and guide the user to carry out active relaxation training. This function is very beneficial to people who are troubled by stress, so it is necessary to add this function to on the smart bracelet.

Contents of the invention

The purpose of the present invention is to overcome the problems existing in the prior art, and provide a smart wristband with a feedback relaxation function, which can collect physiological signals such as the user's ECG, pulse wave, skin impedance, etc., thereby evaluating the user's The degree of tension and the state of relaxation, guide the user to carry out active relaxation training through sound and light signals.

In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:

A smart wristband with a feedback relaxation function, including a sensor module, a central processing unit, an output module, a wireless communication module and a power supply module, the sensor module is electrically connected to the central processing unit, and the central processing unit is connected to the output module Electrically connected, the central processing unit is also connected to the wireless communication module, the sensor module, the central processing unit and the wireless communication module are all connected to the power supply module;

The sensor module detects the physiological signal of the wearer of the wristband, and receives the physiological signal collected by the sensor module for analysis and processing. Based on this, the tension and relaxation state of the wearer of the bracelet are obtained through the evaluation algorithm. tension and relaxation state, the central processing unit selects the corresponding relaxation guidance mode to control the output unit to guide the bracelet wearer to perform relaxation training

Preferably, the sensor module includes an electrocardiogram sensor, a pulse wave sensor and a skin impedance sensor, through which the electrocardiogram sensor, the pulse wave sensor and the skin impedance sensor respectively detect the wearer's electrocardiogram, pulse wave and skin impedance physiological signals, and transmit the signals to the central processing unit.

Further, the central processing unit includes a main control microprocessor and a memory, and the main control microprocessor and the memory are electrically connected.

Further, the output module includes an LED and a speaker, the LED is controlled by the central processing module to control the light color and flashing frequency, and the speaker is also controlled by the central processing module to send out audio signals.

Further, the wireless communication module is used for wireless communication between the smart bracelet and the smart phone.

Preferably, the power module includes a battery and a power management circuit for providing power for the smart bracelet.

Beneficial effects of the present invention:

By adopting the technical scheme of the present invention, not only can real-time detection of physiological signals such as electrocardiogram, pulse wave, and skin impedance of the wearer of the bracelet be carried out, but also through real-time analysis of the physiological signals, the wearer of the bracelet can be guided to perform relaxation training to relieve psychological stress. It is beneficial for the wearer of the bracelet to maintain mental health.

Description of drawings

Fig. 1 is a structural block diagram of the smart wristband with feedback relaxation function of the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

Referring to FIG. 1 , a smart wristband with a feedback relaxation function includes a sensor module 1 , a central processing unit 2 , an output module 3 , a wireless communication module 4 and a power supply module 5 .

Wherein, the sensor module 1 is electrically connected to the central processing unit 2, and is used to detect physiological signals such as electrocardiogram, pulse wave, and skin impedance of the wearer of the wristband, and transmit them to the central processing unit 2, so The central processing unit 2 includes a main control microprocessor 21, and the main control microprocessor 21 is electrically connected with a memory 22 for receiving and processing the physiological signals collected by the sensor module 1, and controlling the output module 3 and the The above wireless communication module 4 works.

In this embodiment, the sensor module 1 includes an electrocardiographic sensor 11, a pulse wave sensor 12, and a skin impedance sensor 13 electrically connected to the central processing unit 2, and the electrocardiographic sensor 11 is connected to the central processing unit 2. Electrically connected, two or three electrodes are used to collect the ECG signal of the wearer of the wristband, after amplification and filtering, the analog-to-digital conversion is carried out into a digital signal, and it is transmitted to the central processing unit 2, and the pulse wave sensor 12 is electrically connected to the central processing unit 2, adopts photoplethysmography technology to collect the pulse wave signal of the wearer of the wristband, performs analog-to-digital conversion into a digital signal after amplification and filtering, and transmits it to the central processing unit 2 , the skin impedance sensor 13 is electrically connected to the central processing unit 2, adopts constant current or constant voltage method to detect the impedance between the two skins of the wrist of the wristband wearer, and transmits it to the central processing unit 2.

In this embodiment, the output module 3 includes an LED31 and a speaker 32 electrically connected to the central processing unit 2, the central processing unit 2 controls the color and the flashing frequency of the LED31, and the central processing unit 2 controls The loudspeaker 32 emits audio signals of different frequencies or different durations.

In this embodiment, the wireless communication module 4 adopts the Bluetooth protocol to realize the wireless communication connection between the user's smart bracelet and the smart phone, and transmit the information of the smart bracelet to the smart phone.

In this embodiment, the power supply module 5 includes a battery and a power management circuit for providing power to other modules. The battery is a non-rechargeable button battery or a rechargeable battery. The power supply module is also provided with a USB interface, which is used to connect to the power supply. The rechargeable battery is charged through the power management circuit.

In this embodiment, the principle of the assessment algorithm of the tension and relaxation state of the bracelet wearer adopted by the central processing unit 2 is based on the electrocardiogram, pulse wave, and skin impedance of the bracelet wearer collected by the sensor module 1. Physiological signals such as heart rate, heart rate variability, pulse rate, skin conductance and other physiological parameters of the wearer of the bracelet are calculated separately, and the tension of the wearer of the bracelet is obtained by integrating the three indicators of heart rate, heart rate variability, and pulse rate. The degree of tension is scored; the relaxation state of the bracelet wearer is obtained through the skin conductance and the change trend of the skin conductance, and an evaluation of the relaxation state is given. The specific content of the evaluation algorithm is:

a) Respectively receive and store the ECG, pulse wave and skin impedance data uploaded by the sensor module 1 within a specific period of time;

b) According to the stored ECG, pulse wave and skin impedance data, respectively calculate the physiological indicators of the wearer's heart rate, heart rate variability, pulse rate, average value of skin conductance, etc., and write them into the memory. The communication module 4 uploads physiological indicators such as heart rate, heart rate variability, pulse rate, skin conductance, etc. of the bracelet wearer to the smart phone;

c) Calculate the average difference between the heart rate, heart rate variability, pulse rate, and skin conductance calculated in the previous time length and the current time length, and multiply them by the weight values corresponding to the differences to obtain the current time length The relaxation state score of , and write to memory;

e) Calculate the difference between the relaxation state score between the previous time length and the current time length, and compare it with the predefined positive and negative thresholds, and set the physical and mental state flag F of the bracelet wearer (initial value F=0): if If the difference is greater than or equal to the positive threshold, it indicates that the wearer of the bracelet is more relaxed and the tension is relieved, F=1; if the difference is less than the positive threshold and greater than the negative threshold, it indicates that the wearer of the bracelet is relaxed and There is no significant change in tension, F=0; if the difference is less than or equal to the negative threshold, it indicates that the wearer of the bracelet is less relaxed and the tension has increased, F=-1;

f) To avoid data overflow, clear the ECG, pulse wave and skin impedance data stored in the storage area in step (a), and then repeat steps (a)-(d). 

In this embodiment, the relaxation guidance mode adopted by the central processing unit 2 for the wearer of the wristband guides the wearer of the wristband to carry out active training by controlling the flickering frequency of the LED31 and the audio signal sent by the speaker 32. Rhythmic deep breathing inhibits the excitability of the sympathetic nerves through breathing relaxation, reduces the heart rate, and relieves the tension of the wearer of the bracelet. The relaxation guidance algorithm is as follows:

a) Receive and store the current physical and mental state flag F _N obtained in step (d) of the above tension and relaxation state evaluation algorithm.

b) Comprehensively compare the currently received physical and mental state flags F _N with the previous n received physical and mental state flags F _N-1 , F _N-2 , ..., F _Nn , and judge the relaxation training effect of the bracelet wearer.

c) Through the color and flashing frequency of LED31, the speaker 32 outputs a specific audio signal to guide the wearer of the bracelet for relaxation training; the color of the LED31 is used to indicate the effect of relaxation training (in this embodiment, red indicates the effect of relaxation training Poor, yellow means that the effect of relaxation training is general, and green means that the effect of relaxation training is better); the function of the LED31 flashing at a specific frequency is to guide the wearer of the wristband to take deep breaths according to this rhythm, so as to achieve the purpose of breathing relaxation training. The loudspeaker 32 outputs a specific audio signal for sound feedback to the wearer of the bracelet, which not only enables the wearer of the bracelet to know the effect of his own relaxation training when his eyes are closed (not looking at the LED31), but also the specific audio signal The audio signal can help the wearer of the bracelet to better perform relaxation training.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention. the

Claims (6)

1. there is feedback and loosen the intelligent hands ring of function, comprise sensor assembly (1), CPU (2), output module (3), wireless communication module (4) and power module (5), it is characterized in that, described sensor assembly (1) is electrically connected with described CPU (2), described CPU (2) is electrically connected with described output module (3), described CPU (2) is also connected with described wireless communication module (4), described sensor assembly (1), described CPU (2) is all connected with described power module (5) with described wireless communication module (4),

Described sensor assembly (1) detects bracelet wearer's physiological signal, and the physiological signal that receives described sensor assembly (1) collection is analyzed and is processed, obtain accordingly bracelet wearer's tensity and relaxation state by assessment algorithm, according to bracelet wearer's tensity and relaxation state, described CPU (2) selects output unit (3) described in the control of corresponding relaxation instructing mode to instruct bracelet wearer to carry out relaxation training.

2. according to claim 1 have feedback and loosen the intelligent bracelet of function, it is characterized in that, described sensor assembly (1) comprises EGC sensor (11), pulse wave sensor (12) and skin impedance sensor (13), by described EGC sensor (11), described pulse wave sensor (12) and described skin impedance sensor (13) detect respectively bracelet wearer's electrocardio, the physiological signal of pulse wave and Skin Resistance, and described signal is sent to described CPU (2).

3. according to claim 1 have feedback and loosen the intelligent bracelet of function, it is characterized in that, described CPU (2) comprises main control microprocessor (21) and memorizer (22), and described main control microprocessor (21) and described memorizer (22) are electrically connected.

4. according to claim 1 have feedback and loosen the intelligent bracelet of function, it is characterized in that, described output module (3) comprises LED(31) and speaker (32), described LED(31) control glow color and flicker frequency by described central processing module (2), described speaker (32) also controls by described central processing module (2) audio signal of sending.

5. according to claim 1 have feedback and loosen the intelligent bracelet of function, it is characterized in that, described wireless communication module (4) is for the radio communication between described intelligent bracelet and smart mobile phone.

6. according to claim 1 have feedback and loosen the intelligent bracelet of function, it is characterized in that, described power module (5) comprises battery and electric power management circuit, for the power supply of described intelligent bracelet is provided.