CN208551844U - A wearable sticker for collecting body sound signals - Google Patents

Abstract

A wearable card for collecting body sound signals, comprising a flexible shell, a flexible battery and a flexible circuit module, the flexible shell is arranged to be suitable for being directly attached to the skin surface or attached to the inner side of clothes to make the sound sensor closely contact with the skin, The sound sensor converts the vibration signal into an electrical signal, the analog sensor interface is connected with the sound sensor, and the electrical signal is transmitted to the analog filter module. The analog filter module filters the electrical signal and amplifies it to meet the requirements of A/D sampling. The controller circuit control module controls the A/D sampling, the processed data is wirelessly sent to the upper computer by the wireless transmission module, and the power supply module supplies power to the flexible circuit module. By attaching the wearable card to the surface of the human skin or to the inside of the clothing, it can detect and process human sound signals in various parts, and has high portability and real-time detection.

Description

A kind of wearable sticker acquiring body sound signal

Technical field

The utility model relates to a kind of wearable stickers for acquiring body sound signal.

Background technique

A large amount of human health information is carried in the voice signal of human body, as doctor can pass through the heart sound and lung of patient Sound, to judge whether it is cardiovascular healthy, perfect with lung function.

Traditional detection mode needs patient is intermittent to auscultate to hospital, then the concrete condition of patient is judged by doctor, Such mode do not have it is perspective, the state of an illness of patient cannot be prompted in daily life；Patient is also required to remotely to hospital simultaneously Waiting and inspection.

Existing Medical Equipment needs patient to rest on hospital's waiting for a long time, and special instrument can not be continuous Detection, is difficult to accomplish the accurate positionin of disease in this way；Traditional stethoscope is difficult to identify that subtleer sound, and doctor is listening Also it will receive the interference of environment during examining；In addition, being current auscultation system there are also the joint sound of some human bodies and pulse sound It can not monitor, such signal medically equally has medical value.

Therefore, it is necessary to establish fairly perfect human acoustical signal's detection system, and by this system with it is wearable Cooperation, in the case where realizing wearing comfort, real-time detection, easy detection.

Utility model content

The main purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of wearing for acquisition body sound signal Wear sticker.

To achieve the above object, the utility model uses following technical scheme:

A kind of wearable sticker acquiring body sound signal, including soft shell, flexible battery and flexible circuit module, it is described Flexible circuit module includes the sound transducer being set to outside the soft shell and the simulation that is set in the soft shell Sensor interface, analog filter block, power supply module, microprocessor circuit control module, wireless sending module, it is described soft Property shell be arranged to be suitable for directly being affixed on skin surface or be attached at garment interior so that the sound transducer and skin it is tight Contiguity touching, the sound transducer are used to being converted to vibration signal into electric signal, the analog sensor interface and the sound Sensor connection, for electric signal to be sent to the analog filter block, the analog filter block be used for electric signal into Row filtering conditioning, amplification, the microprocessor circuit control module carry out the A/D sampling, data that treated for controlling Host computer is wirelessly transmitted to by the wireless sending module, the power supply module is used to supply for the flexible circuit module Electricity.

Further:

The material of the soft shell is silica gel or TPU, and be arranged to Grazing condition is placed directly in chest, abdomen, hand Wrist, Bones and joints or ligament junction.

The analog sensor interface in a manner of FPC connector with the sound transducer wired connection.

The sound transducer is encapsulated as lamelliform complete soft structure.

The sound transducer is PVDF piezoelectric film sensor.

The sound transducer includes two PVDF piezoelectric membranes, is respectively placed in heart and wrist to detect heart sound and arteries and veins sound Signal.

The analog filter block includes sequentially connected difference channel, 4 ranks-Butterworth LPF and main amplification Circuit, the difference channel for inhibiting common-mode signal and amplifying useful signal, use by the 4 ranks-Butterworth LPF In eliminating high band noise, the main amplifying circuit, which is used to adjust signal to what A/D was sampled, adopts range.

The microprocessor circuit control module includes ADC module and DSP module, and the ADC module is used for the mould Signal after quasi- filter module filtering processing carries out A/D sampling, and the DSP module is sampled for controlling ADC module, and to described ADC module treated signal carries out digital processing.

The utility model has the beneficial effects that

The utility model provides a kind of wearable sticker for acquiring body sound signal.From medical angle, the sound of human body Signal has larger medical value, such as: heart sound, lungs sound, breath sound, arteries and veins sound, joint sound；The movement of each organ, body Vibration signal can be reached body surface by interior each tissue；Sensor is attached at skin table by the way of flexible sticker by the utility model Face, as long as the frequency of its sound, in the effective working frequency range of sensor, sensor can carry out signal conversion to the voice signal, Voice signal is converted to electric signal；The processing such as analog filtering, amplification, A/D sampling are carried out to signal again, are finally obtained with larger The body sound data of medical value.The sticker of the utility model is attached at human skin surface or worn clothing surface, can be by more A Flexible Node circuit, in places such as the shirtfront of human body, abdomen, wrist, joint connections, to the heart sound, lungs sound, wriggling of human body The voice signal of sound, arteries and veins sound, joint sound etc. extracts；In real time, the detection human acoustical signal of multinode, then send the signal to Host computer such as mobile phone or Medical Devices are handled, shown and are stored, and can be sent doctor to by network layer or be carried out into one The judgement of medicine algorithm is walked, realizes that the real time monitoring of disease and tele-medicine detect.

The advantages of the utility model specific embodiment, has:

1) sticker Grazing condition material makes, flexible base material make to wear it is more comfortable, do not influence the work of user with Life；

2) when wearable sticker solves previous detection human acoustical signal, cumbersome, inconvenient puzzlement, wireless biography are detected Defeated mode keeps detection more convenient, can accomplish real-time detection whenever and wherever possible；

3) sticker not only can detect the signal of heart sound, lungs sound, breath sound etc., also can detect the tradition such as arteries and veins sound, joint sound and sets Basis has been opened up in standby non-detectable voice signal, the research for human health and human body signal；

4) detection mode of Yi Shixian multinode accomplishes the sound letter as much as possible for extracting and wanting in information extraction Breath, and the relevance between a signal can be found by way of Digital Signal Analysis and Processing.

Detailed description of the invention

Fig. 1 is the circuit block diagram of the wearable sticker of the utility model embodiment.

Fig. 2 is the test point schematic diagram of the utility model embodiment.

Fig. 3 is the sticker mounted inside figure of the embodiment of the present invention；

Fig. 4 is the sticker exterior view of the embodiment of the present invention.

Specific embodiment

It elaborates below to the embodiments of the present invention.It is emphasized that following the description is only example Property, rather than in order to limit the scope of the utility model and its application.

Refering to fig. 1 to Fig. 4, in one embodiment, including soft shell 08, flexible battery 09 and flexible circuit module 11, the flexible circuit module 11 includes the sound transducer 01 being set to outside the soft shell 08 and is set to the flexibility Analog sensor interface 02, analog filter block 03 in shell 08, power supply module 04, microprocessor circuit control module (specifically may include ADC module 05 and DSP module 06), wireless sending module 07, the soft shell 08 are arranged to directly be affixed on Skin surface or be attached at garment interior so that the sound transducer 01 and skin close contact, the sound transducer 01 Vibration signal is converted into electric signal, the analog sensor interface 02 connect with the sound transducer 01, electric signal is passed It send to the analog filter block 03, the analog filter block 03 is filtered conditioning to electric signal, amplification makes it meet A/D The requirement of sampling, the microprocessor circuit control module control carry out the A/D sampling, and data that treated are by described wireless Sending module 07 is wirelessly transmitted to host computer 10, and the power supply module 04 is flexible circuit module power supply.

The soft shell 08 can be completed by way of mold or 3D printing by flexible materials such as silica gel, TPU.It is described Reasonable Arrangement internal components are put in soft shell 08, reserve the communication interface and power input interface of sensor, in addition, Viscose glue position and required weaving position 12 can have been reserved.

Shell 08 is that can directly be affixed on skin surface, it is possible to use textile technology by 08 nesting of shell or sticks on Garment interior guarantees the close contact of sensor and skin.

Whole equipment can be Grazing condition, can be placed directly in chest, abdomen, wrist, Bones and joints or ligament junction, directly It connects and the human acoustical signal for placing position is extracted.

Vibration signal is converted to electric signal by the sound transducer 01, and the analog sensor interface 02 is with FPC or FFC Electric signal is sent to the analog filter block 03 with 01 wired connection of sound transducer by the mode of connector.

Referring to Fig.2, according in the position that human body surface is placed difference, the extractible signal packet of the sound transducer 01 Include: breath sound V1, lungs sound V2, heart sound V3, pulse tone V4, peristaltic sound V5, muscle sound V6, joint sound V7 and bone sound etc. are because of people The voice signal that body organ movement generates.By multiple Flexible Node circuits, can connect in the shirtfront of human body, abdomen, wrist, joint Equal places are connect, the voice signals such as the heart sound of human body, lungs sound, peristaltic sound, arteries and veins sound, joint sound are extracted.Sound transducer 01 encapsulates For slice-shaped, complete soft structure, 08 material of sensor outer housing does not have irritation to human body, and sensor should have high sensitivity, work With the wide, linearity characteristics such as preferably, it is suitable for the extraction of body sounds information.The sensor shape of selection is sheet type, small Encapsulating structure, convenient for attaching.

The analog filter block 03 improves electric signal, amplifies, and electric signal is made to be satisfied with the sample range of A/D；It is described 4 ranks-Butterworth filter can be selected in analog filter block 03, to the pretreatment that electric signal carries out, does the preparation of digital filtering.

The analog filter block 03 may include difference channel, 4 ranks-Butterworth LPF and main amplifying circuit. Difference channel inhibits common-mode signal, amplifies useful signal；4 ranks-Butterworth LPF eliminates high band noise, guarantees filter Wave device leads to the integrality of inband signaling；Main amplifying circuit, which adjusts signal to ADC module 05, can adopt range.

Since measured signal is more, different signals is in different frequency ranges, the filter circuit of selection as far as possible simple logical With filtering out unnecessary high-frequency noise, guarantee the integrality of signal.

The microprocessor circuit control module may include ADC module 05 and DSP module 06, and DSP module 06 controls ADC mould 05 sampling filter of block treated signal, according to required signal type, to ADC module 05, treated that signal carries out number Processing；Data that treated are sent to host computer 10 by wireless sending module 07 and reprocess.

The power supply module 04 is flexible circuit module power supply, and flexible battery 09 is 3.7V, connects the power supply and supplies Electric module 04.Power module in flexible circuit module can provide for circuit node: the differences such as 2V, 3.3V, positive and negative 5V need electricity Pressure.

As Figure 1-Figure 4, the wearable sticker of a kind of specific embodiment, comprising: (PVDF piezoelectricity passes sound transducer 01 Sensor), it is analog sensor interface 02, analog filter block 03, power supply module 04, ADC module 05, DSP module 06, wireless Sending module 07, soft shell 08,09 battery 09；Circuit block diagram is as shown in Figure 1.

Wearable sticker can detect simultaneously when in use in the different parts of human body；In use, host computer 10 can respectively with Detection node connects to form connec-tionless network, and wireless transmission acquires the voice data of each detection node.

In the present embodiment, sound transducer 01 selects PVDF piezoelectric membrane, and two sensors are respectively placed in heart and hand Wrist, detection heart sound and arteries and veins sound signal.

FPC flexible circuit module is equipped with analog sensor interface 02, and 2 signal wires of PVDF piezoelectric transducer are connected to mould Quasi- sensor interface 02, analog sensor interface 02 are connected to the difference channel of analog filter block 03, and difference channel inhibits altogether Mould signal, amplifies useful signal, and the difference amplifier of difference channel selects TI instrument amplifier INA118, and 30 times of amplification factor； Signal is passed through to the 4 ranks-Butterworth LPF of analog filter block 03 again, cutoff frequency 500Hz eliminates high frequency band Noise guarantees the integrality of signal in filter passband；Signal is finally passed through to the main amplifying circuit of analog filter block 03, it will Signal, which is adjusted to ADC module 05, can adopt range, resupply the sampling of ADC module 05.

After ADC module 05 samples, since voice signal is generally in 30Hz~500Hz or so, higher sample rate is needed, because The data volume that this directly upper former biography data may cause wireless transmission is excessive, therefore, is first adopted by DSP module 06 to ADC module 05 Signal after sample filtering processing carries out Digital Signal Processing, then signal after processing is sent to host computer by wireless sending module 07 10 displays and processing.The present embodiment, DSP module 06 are 4 ranks-Butterworth band for the DSP digital filter of middle heart sound setting Bandpass filter, free transmission range 30Hz~150Hz；DSP module 06 is fertile for 4 ranks-Bart for the DSP digital filter of arteries and veins sound setting This bandpass filter, free transmission range 30Hz~90Hz.In the present embodiment, the chip of wireless sending module 07 selects TI CC2650 Low-power consumption, BLE chip.

After the wireless terminals such as mobile phone receive the signal of the transmission of wireless sending module 07, signal is stored, display, is located again Reason, stored signal can be supplied to the judgement of mobile phone algorithm, can also reach doctor PC by network layer in time, algorithm or doctor are to disease Disease is prejudged.

The micro process with DSP and less radio-frequency function can be used in microprocessor circuit control module and wireless sending module Device realizes that the quantity of microprocessor is according to depending on requirement；If microprocessor has the function of DSP and less radio-frequency simultaneously, 1 If not having simultaneously 2 microprocessors can be selected, then with the mode mailing address that near field is wired or wireless in microprocessor Reason.

In conclusion the wearable sticker of the utility model record human acoustical signal, it can be in the above manner, can be to not Same human acoustical signal's detection and analysis, have high portability, real-time, and can extract different voice signals simultaneously.

The above content is specific/preferred embodiment further detailed description of the utility model is combined, no It can assert that the specific implementation of the utility model is only limited to these instructions.For the common skill of the utility model technical field For art personnel, without departing from the concept of the premise utility, the embodiment that these have been described can also be made Some replacements or modifications, and these substitutions or variant all shall be regarded as belonging to the protection scope of the utility model.

Claims (8)

1. A wearable card for collecting body sound signals, characterized in that it comprises a flexible casing, a flexible battery and a flexible circuit module, and the flexible circuit module comprises a sound sensor arranged outside the flexible casing and a sound sensor arranged outside the flexible casing. An analog sensor interface, an analog filter module, a power supply module, a microprocessor circuit control module, and a wireless transmission module in a flexible housing that is configured to be directly attached to the skin surface or attached to the inside of clothing to enable the The sound sensor is in close contact with the skin, the sound sensor is used to convert the vibration signal into an electrical signal, the analog sensor interface is connected with the sound sensor, and is used to transmit the electrical signal to the analog filtering module, the analog The filtering module is used for filtering, conditioning and amplifying the electrical signal, the microprocessor circuit control module is used for controlling A/D sampling, the processed data is wirelessly sent to the upper computer by the wireless sending module, and the power supply is powered A module is used to power the flexible circuit module. 2. The wearable sticker according to claim 1, wherein the material of the flexible shell is silicone or TPU, which is set to be fully flexible and can be directly placed on the chest, abdomen, wrist, bone joint or ligament connection. 3. The wearable card of claim 1, wherein the analog sensor interface is wired to the sound sensor in the form of an FPC connector. 4. The wearable card according to claim 1, wherein the sound sensor is packaged in a sheet-shaped fully flexible structure. 5. The wearable card of claim 1, wherein the sound sensor is a PVDF piezoelectric film sensor. 6. The wearable card of claim 1, wherein the sound sensor comprises two PVDF piezoelectric films, which are respectively placed on the heart and the wrist to detect heart sound and pulse sound signals. 7. The wearable card sticker according to any one of claims 1 to 6, wherein the analog filter module comprises a differential circuit, a 4th-order-Butterworth low-pass filter and a main amplifier circuit connected in sequence, The differential circuit is used to suppress common-mode signals and amplify effective signals, the 4th-order-Butterworth low-pass filter is used to eliminate high-band noise, and the main amplifier circuit is used to adjust the signal to the A/D sampled value. Available range. 8. The wearable card sticker according to any one of claims 1 to 6, wherein the microprocessor circuit control module comprises an ADC module and a DSP module, and the ADC module is used for the analog filtering module The filtered signal is subjected to A/D sampling, and the DSP module is used to control the sampling of the ADC module, and perform digital processing on the signal processed by the ADC module.