阅读说明：本技术 一种柔性可穿戴钢琴及其实现方法 (A kind of flexible wearable piano and its implementation ) 是由 段升顺 马睿楠 吴俊� 于 2019-08-06 设计创作，主要内容包括：本发明公开了一种柔性可穿戴钢琴及其实现方法,包括可穿戴电子器件、信号获取处理单元和基本音阶播放器单元；所述可穿戴电子器件包括基底层、功能层和绝缘封装层,基底层贴附在皮肤上,功能层由多个压力形变传感器组成,对应于不同的音阶信号,绝缘封装层覆盖于功能层上方。当压力挤压可穿戴电子器件中的压力形变传感器时,压力形变传感器两端的电压发生变化,信号获取处理单元采集电压变化情况,基本音阶播放器单元根据电压变化情况播放对应的音阶。本发明实现了钢琴的可穿戴功能,交互性得到了显著提高；本发明借助于纹身纸和柔性电子技术,可以根据实际使用情况改变尺寸和结构,以贴合不同的身体部位,具有更高的灵活性和通用性。(The invention discloses a kind of flexible wearable piano and its implementation, including wearable electronic device, signal acquisition process unit and basic scale player unit；The wearable electronic device includes basal layer, functional layer and insulating sealed layer, and basal layer attaches on the skin, and functional layer is made of multiple pressure deformation sensors, and corresponding to different scale signals, insulating sealed layer is covered in above functional layer.When the pressure deformation sensor in pressure extrusion wearable electronic device, the voltage at pressure deformation sensor both ends changes, signal acquisition process unit collection voltages situation of change, and basic scale player unit plays corresponding scale according to voltage change situation.The present invention realizes the wearable function of piano, and interactivity is significantly improved；The present invention can change size and structure according to actual use situation, to be bonded different physical feelings, have higher flexibility and versatility by means of paper and the flexible electronic technology of tatooing.)

1. a kind of flexible wearable piano, it is characterised in that: including wearable electronic device, signal acquisition process unit and basic Scale player unit；The wearable electronic device and the electrical connection of signal acquisition process unit, the signal acquisition process list First and basic scale player unit electrical connection；

The wearable electronic device includes basal layer, functional layer and insulating sealed layer；The basal layer attaches on the skin；Institute It states functional layer to be made of multiple pressure deformation sensors, each pressure deformation sensor corresponds to a scale signal；It is described exhausted Edge encapsulated layer is covered in above functional layer.

2. flexible wearable piano according to claim 1, it is characterised in that: the basal layer is using paper of tatooing.

3. flexible wearable piano according to claim 1, it is characterised in that: the pressure deformation sensor is and is coupled The cathode of structure, each pressure deformation sensor is connected with each other and is grounded.

4. flexible wearable piano according to claim 3, which is characterized in that the preparation of the wearable electronic device walks Suddenly include following content:

Step 1, the mask for carving specific shape on PDMS using laser engraving machine, wherein PDMS with a thickness of 0.5- 1mm；

The MWCNTs of the MXene and 0.5-2 component of 1-3 component is dispersed in water by step 2, and then magnetic stirs 2-3 hours, 300-500W sonic oscillation 2-3h prepares uniform MXene/MWCNTs aqueous dispersions；

PDMS mask is placed on and tatoos on paper by step 3, presses lightly on, and the PDMS mask is k biography of laser engraving Sensor device arrangement architecture；

MXene/MWCNTs aqueous dispersions are sprayed on PDMS mask, 40-80 degrees Celsius of constant temperature using spraying process by step 4 Kiln dried solidification, repeats aforesaid operations 4-5 times, PDMS mask is removed from paper of tatooing, is prepared by k pressure shape Become the functional layer of sensor composition；K+1 copper conductor is drawn in the interface of pressure deformation sensor, as electrical connection interface；Its In, negative signal of 1 electrical interface for wearable electronic device exports, and k electrical interface is being used for wearable electronic device just The output of pole signal；

Step 5 sprays one layer of PVP aqueous solution on a functional, forms one layer of insulating sealed layer after cured.

5. flexible wearable piano according to claim 1, it is characterised in that: the pressure deformation sensor is parallel row Array structure, each sensor spacing 1-1.5cm, each a length of 1.5-2cm of sensor.

6. a kind of implementation method of the flexible wearable piano as described in claim any one of 1-5, which is characterized in that including following Step:

Step 1, when finger pressing wearable electronic device in some pressure deformation sensor when, pressure deformation sensor both ends Voltage generates variation；

Step 2, signal acquisition process unit acquire the voltage at the pressure deformation sensor both ends that are pressed, and handle and export 7 Binary signal；

Who sound step 3, basic scale player unit determine according to the binary signal that signal acquisition process unit exports Rank plays.

7. flexible wearable piano implementation method according to claim 6, which is characterized in that the step 2 specifically:

(2-1) signal acquisition process unit acquires wearable electronic device according to certain time interval by k channel modulus converter The voltage at all pressure deformation sensors both ends in part；

The unit record of (2-2) signal acquisition process current voltage Um1, forward voltage Um0, m=1,2 ... k-1, k are pressure shape Become number of probes；

(2-3) is if the voltage that m-th of pressure deformation sensor both end voltage successively acquires twice meetsThen M of the corresponding k binary signal of the pressure deformation sensor are 1, are otherwise 0, wherein the Uth is threshold voltage, The degree being pressed for judging m-th of sensor exports m-th of scale with excitation；

(2-4) exports k binary signal combinations.

Technical field

The present invention relates to flexible electronic, human-computer interaction and Musical Instrument, and in particular to a kind of flexible wearable piano is arrived, Also relate to the implementation method of the flexible wearable piano.

Background technique

With the fast development of flexible electronic and technology of Internet of things, it is great that flexible wearable equipment has caused people Concern.The propagation direction novel as human-computer interaction, flexible wearable device are being entertained, medical treatment detection, supplemental training etc. Increasingly important role is played, the great interest of researcher and enterprise is caused.

On the other hand, in amusement probing direction, the preparation of traditional piano equipment, mostly hard material, and that there are volumes is big The problem of, be not suitable for carrying, and current mobile phone, the mobile devices such as tablet computer have manufacturer and develop piano class APP, still So there are problems for the sense of touch of piano times, and are restricted by screen size；In addition, with the development of flexible electronic technology, Yi Xiejie The novel flexible piano for closing flexible material also occurs, for example binding silica gel is made into flexible piano, however, such piano is still In the presence of can not be wearable, the low problem of accuracy.

Summary of the invention

Goal of the invention: of the existing technology in order to solve the problems, such as, the object of the present invention is to provide one kind.

Technical solution: a kind of flexible wearable piano, including wearable electronic device, signal acquisition process unit and basic Scale player unit；The wearable electronic device and the electrical connection of signal acquisition process unit, the signal acquisition process list First and basic scale player unit electrical connection；The wearable electronic device includes basal layer, functional layer and insulating sealed layer； The basal layer attaches on the skin；The functional layer is made of multiple pressure deformation sensors, each pressure deformation sensor Corresponding to a scale signal；The insulating sealed layer is covered in above functional layer.

Preferably, the basal layer is using paper of tatooing.

Further, the pressure deformation sensor is parallel-connection structure, and the cathode of each pressure deformation sensor is connected with each other And it is grounded.

The preparation step of the wearable electronic device includes following content:

Step 1, the mask for carving specific shape on PDMS using laser engraving machine, wherein PDMS with a thickness of 0.5-1mm；

The MWCNTs of the MXene and 0.5-2 component of 1-3 component is dispersed in water by step 2, and then magnetic stirring 2-3 is small When, 300-500W sonic oscillation 2-3h prepares uniform MXene/MWCNTs aqueous dispersions；

PDMS mask is placed on and tatoos on paper by step 3, presses lightly on, and the PDMS mask is the k of laser engraving A sensor component arrangement architecture；

MXene/MWCNTs aqueous dispersions are sprayed on PDMS mask using spraying process by step 4, and 40-80 degrees Celsius Freeze-day with constant temperature furnace dry solidification repeats aforesaid operations 4-5 times, PDMS mask is removed from paper of tatooing, and is prepared into and is pressed by k The functional layer of power changing sensor composition；K+1 copper conductor is drawn in the interface of pressure deformation sensor, is connect as electrical connection Mouthful；Wherein, 1 electrical interface is exported for the negative signal of wearable electronic device, and k electrical interface is used for wearable electronic device Positive signal output；

Step 5 sprays one layer of PVP aqueous solution on a functional, forms one layer of insulating sealed layer after cured.

Preferably, the pressure deformation sensor is parallel arranged structure, each sensor spacing 1-1.5cm, Mei Gechuan The a length of 1.5-2cm of sensor.

The implementation method of the flexible wearable piano, comprising the following steps:

Step 1, when finger pressing wearable electronic device in some pressure deformation sensor when, pressure deformation sensor two The voltage at end generates variation；

Step 2, signal acquisition process unit acquire the voltage at the pressure deformation sensor both ends that are pressed, and handle and export 7 binary signals；

Which step 3, basic scale player unit determine according to the binary signal that signal acquisition process unit exports Position scale plays；

Further, the step 2 specifically:

(2-1) signal acquisition process unit acquires wearable electricity according to certain time interval by k channel modulus converter The voltage at all pressure deformation sensors both ends in sub- device；

The unit record of (2-2) signal acquisition process current voltage Um1, forward voltage Um0, m=1,2 ... k-1, k are pressure Power changing sensor number；

(2-3) is if the voltage that m-th of pressure deformation sensor both end voltage successively acquires twice meetsThen m of the corresponding k binary signal of the pressure deformation sensor are 1, are otherwise 0, wherein institute Stating Uth is threshold voltage, and the degree being pressed for judging m-th of sensor exports m-th of scale with excitation；

(2-4) exports k binary signal combinations.

Compared to the prior art, the present invention has following marked improvement: for traditional piano, realizing can be worn Wear characteristic；Compared to mobile device-based piano software, interactivity is more preferable, and entertainment is stronger；By means of the paper and soft of tatooing Property electronic technology, flexibly this can wear the size and structure of flexible wearable piano, to be bonded different physical feelings, have Higher flexibility.

Detailed description of the invention

Fig. 1 is module connection diagram of the invention；

Fig. 2 is the structural schematic diagram of wearable electronic device；

Fig. 3 is the work flow diagram of signal acquisition process unit.

Specific embodiment

With reference to the accompanying drawing with the wearable piano of the arm of 7 scales, technical solution of the present invention is described further.

As shown in Figs. 1-2, a kind of wearable piano of flexible arm includes:

(1) wearable electronic device

Wearable electronic device is by the resistance variations of corresponding pressure deformation sensor, so that the voltage at its both ends Change, be pressed to characterize corresponding pressure deformation sensor, and then be equivalent to corresponding scale and selected, more than realizing Function, the device is using paper layer-functional layer-encapsulated layer three-decker of tatooing.

Wherein, paper of tatooing is directly attached to the basal layer on arm as wearable electronic device；Functional layer is 7 identical Pressure deformation sensor, 7 pressure deformation sensors correspond respectively to scale 1,2,3,4,5,6,7, further, such as Fig. 2 Shown, 7 pressure deformation sensors form parallel-connection structure, and the cathode of 7 pressure deformation sensors links together.Its In, the pressure deformation sensor of functional layer is prepared using Mxene/MWCNTs composite nanometer conductive material by amask & aspray At；Encapsulated layer is prepared on a functional using the spraying of PVP aqueous solution, plays the role of electrical isolation and defencive function layer.

First pressure deformation sensor, which is squeezed, when scale 1 (do) is pressed in selection, in functional layer generates deformation, thus Crack is generated, resistance is caused to increase, both end voltage increases, and remaining 6 pressure deformation sensor resistance remains unchanged substantially, and two It holds voltage constant, characterizes whether a certain scale is selected by the voltage change at pressure deformation sensor both ends to realize.

The preparation of wearable electronic device on PDMS the following steps are included: carve specific shape using laser engraving machine Mask, wherein PDMS with a thickness of 0.5mm；Later, the MWCNTs of the MXene of 2 components and 1 component are dispersed in water, so Magnetic stirs 2 hours afterwards, and 300W sonic oscillation 2h prepares uniform MXene/MWCNTs aqueous dispersions；Later by PDMS mask It is placed on and tatoos on paper, press lightly on；MXene/MWCNTs aqueous dispersions are sprayed on PDMS mask using spraying process later Version, 40 degrees Celsius of freeze-day with constant temperature furnace dry solidifications repeat the above steps 4-5 times later, PDMS mask are shelled from paper of tatooing From being prepared into functional layer；8 copper conductors are drawn in the interface of pressure deformation sensor, as electrical connection interface；Finally, In One layer of PVP aqueous solution is sprayed in functional layer, forms one layer of electrical isolation protection packaging layer after cured, when wearing, will directly be tatooed Paper is fitted on arm, is prepared into the signal picker of the wearable piano of flexible arm --- wearable electronic device.

(1) signal acquisition process unit

Signal acquisition process unit includes obtaining voltage signal U1, U2, U3, U4, U5, the voltage of U6, U7 obtain module and Handle voltage signal U1, U2, U3, U4, U5, the voltage processing module of U6, U7.

Further, voltage obtains module and acquires flexible wearable electronic device by the every 0.01s of 7 channel modulus converters The voltage signal at 7 pressure deformation sensor both ends in functional layer, acquires as U1, U2, U3, U4, U5, U6, U7.

As shown in figure 3, voltage processing module record is worked as the voltage Um (m=1,2,3 ..., 7) of each channel acquisition Preceding voltage Um1, forward voltage Um0 determine whether the corresponding pressure deformation sensor in the channel is depressed using threshold voltage, right Whether the scale answered is selected.Specifically, if the voltage that m-th of pressure deformation sensor both end voltage successively acquires twice meetsThen m of corresponding 7 binary signals of the pressure deformation sensor are 1, are otherwise 0.

Further, for convenience of understanding, it is assumed that scale 1 (do) selection, i.e., first pressure deformation sensor is pressed, then 7 binary signals of signal acquisition process unit final output are 0000001.

(2) basic scale player unit

Basic scale player unit receives 7 binary signals exported from signal acquisition process unit, finds 1 institute In position, controls audio player plays and correspond to scale.

Further, for convenience of understanding, if 7 binary signals that signal acquisition process unit passes over are 0000001, then basic scale player unit meeting cycle detection 7 binary signals, it is found that first is 1, then basic announcement Rank player unit controls audio player plays scale 1 (do).

The implementation method and work of the wearable piano of the flexible arm are illustrated below with reference to pop-up music scale 1 (do) Make process:

Step 1, when finger pressing wearable electronic device function layer first pressure deformation sensor when, wearable electricity Sub- device is by the voltage change at the 1st pressure deformation sensor both ends in functional layer, and remaining 6 pressure deformation sensor Voltage will not change

Step 2, signal acquisition process unit acquire the voltage at 7 pressure deformation sensor both ends, and handle output 7 two 0 signal 0000001 of system；Specifically:

Voltage in (2-1) signal acquisition process unit obtains module can by the every 0.01s acquisition of 7 channel modulus converters Dress the voltage at 7 pressure deformation sensor both ends in electronic device；

The unit record of (2-2) signal acquisition process current voltage Um1, forward voltage Um0, wherein the m=1,2,3,4, 5,6,7 respectively represent the voltage at 7 pressure deformation sensor both ends；

(2-3) voltage that the 1st pressure deformation sensor both end voltage successively acquires twice at this time meetsThen the 1st of 7 binary signals is 1, and the voltage at remaining 6 both ends is unsatisfactory for Thus 2-6 of 7 binary signals are 0, wherein each scale of excitation output needs to judge biography corresponding to the scale The degree that sensor is pressed, Uth are threshold voltage, and value range is influenced by transducer sensitivity, and Uth value is bigger, are indicated The excitation output of the scale needs bigger pressure deformation effect.In the present embodiment, it is contemplated that the spirit of the flexible sensor of preparation Sensitivity, Uth are selected as 5, that is, it is original 6 times that the deformation for pressing generation, which makes the resistance value of the pressure deformation sensor become larger,.

(2-4) exports 7 binary signal combinations, and exporting is 0000001.

The binary signal 0000001 that step 3, basic scale player unit are exported according to signal acquisition process unit, Position where finding 1 is 1, and driving audio player plays play scale 1 (do).