阅读说明：本技术 一种弦乐器指位提示和检测装置及弦乐器 (String instrument finger position prompting and detecting device and string instrument ) 是由 胡洁 于 2020-04-14 设计创作，主要内容包括：本发明提供了一种弦乐器指位提示和检测装置及弦乐器,其中弦乐器指位提示和检测装置,包括：指位提示单元,设置在弦乐器的指板上；所述指位提示单元包含显示膜,所述显示膜用于提示按弦的位置；指位检测单元,用于检测按弦位置。本弦乐器指位提示和检测装置及弦乐器,能够在真实乐器上提示练习者按弦位置,能安装在指板和弦之间的狭小空间内,并能很好的贴合在指板的曲面上,不影响乐器的演奏。本发明同时具有指位提示和指位检测的功能,能够根据乐谱的节奏来动态显示按弦位置和按弦保持时间,使练习者更易于上手,并能反馈练习者的实际按弦位置和保持时间,以便练习者能看到练习效果。(The invention provides a string instrument finger position prompting and detecting device and a string instrument, wherein the string instrument finger position prompting and detecting device comprises: the finger position prompting unit is arranged on a finger plate of the stringed instrument; the finger position prompting unit comprises a display film, and the display film is used for prompting the position of pressing a string; and the finger position detection unit is used for detecting the string pressing position. The string instrument finger position prompting and detecting device and the string instrument can prompt a practicer to press strings on a real musical instrument, can be installed in a narrow space between fingerboards and strings, can be well attached to the curved surface of the fingerboards, and do not influence the playing of the musical instrument. The invention has the functions of finger position prompt and finger position detection, can dynamically display the string pressing position and the string pressing holding time according to the rhythm of the music score, enables a practicer to be easier to get on hand, and can feed back the actual string pressing position and the holding time of the practicer so that the practicer can see the exercise effect.)

1. A string instrument finger position prompting and detecting device is characterized by comprising:

the finger position prompting unit is arranged on a finger plate of the stringed instrument; the finger position prompting unit comprises a display film, and the display film is used for prompting the string pressing position;

and the finger position detection unit is used for detecting the string pressing position.

2. The stringed musical instrument finger position presenting and detecting device as in claim 1, wherein the finger position detecting unit is provided on a finger board of the stringed musical instrument;

the finger position detection unit is provided with a touch film.

3. A stringed musical instrument finger position presenting and detecting device as in claim 1, wherein the display film is a flexible light emitting display film;

the flexible luminous display film comprises a plurality of finger position prompting sheets; the finger position prompting sheet is one or more of a cold light sheet device, an organic light emitting diode device, electronic paper and a graphene display device.

4. A stringed musical instrument finger position cue and detection device as in claim 2, wherein the touch membrane is attached to the display membrane;

the display film is fixed on the finger board, and the touch film is arranged above the display film.

5. A stringed musical instrument finger position pointing and detecting device as in claim 2, wherein the touch film is a transparent flexible multi-touch film comprising at least one electromagnetic induction layer consisting of a fine wire mesh.

6. A stringed musical instrument finger position presenting and detecting device according to claim 1, further provided with an information processing unit;

the information processing unit is in communication connection with the finger position prompting unit and is used for controlling the position of the display film for prompting the pressing string according to the finger position information.

7. A stringed musical instrument fingering position presenting and detecting device as in claim 6, wherein the information processing unit is connected to the fingering position detecting unit for acquiring a string pressing position detected by the fingering position detecting unit.

8. A stringed musical instrument comprising the stringed musical instrument finger position presenting and detecting device of any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of stringed instruments, in particular to a finger position prompting and detecting device for a stringed instrument and the stringed instrument.

Background

In recent years, parents pay more and more attention to the cultivation of children in music, and more children practice musical instruments from childhood. Stringed instruments are an important branch of the musical family, which rely on mechanical forces to vibrate tensioned strings to produce sounds. The string instrument usually uses different strings to play different tones, and the string length is changed by pressing the strings with fingers, namely, the string length is changed by pressing the strings at different positions of the fingerboard, thereby achieving the purpose of changing the pitch.

However, in many string instruments, such as violins and cellos, the fingerboards do not have any marks, and beginners cannot clearly find out the actual positions of notes to be played on the fingerboards, so that the determination of the positions of the notes on the fingerboards is one of important and difficult-to-master technologies, and is a complex thinking activity and cable source listening process for learners, and the learners are required to accurately memorize the corresponding tones of each note, so that the difficulty is high, the efficiency is low, and the effect is slow.

At present, some products for string music fingering exercise are available in the market, most of the products belong to devices for simulation exercise, the products are not used on real musical instrument bodies, and although the products are simple and convenient to use, a lot of characteristics of the products for string music fingering exercise on real musical instruments are lost.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide a string instrument finger position indicating and detecting device and a string instrument, which can indicate the string pressing position of a practicer on a real instrument.

The technical scheme of the invention is realized as follows:

a stringed instrument finger position cue and detection device comprising:

the finger position prompting unit is arranged on a finger plate of the stringed instrument; the finger position prompting unit comprises a display film, and the display film is used for prompting the string pressing position;

and the finger position detection unit is used for detecting the string pressing position.

Preferably, the finger position detecting unit is provided on a finger board of the stringed musical instrument;

the finger position detection unit is provided with a touch film.

Preferably, the display film is a flexible light-emitting display film;

the flexible luminous display film comprises a plurality of finger position prompting sheets; the finger position prompting sheet is one or more of a cold light sheet device, an organic light emitting diode device, electronic paper and a graphene display device.

Preferably, the touch film is attached to the display film;

the display film is fixed on the finger board, and the touch film is arranged above the display film.

Preferably, the touch film is a transparent flexible multi-touch film comprising at least one electromagnetic induction layer consisting of ultrafine wire grids.

Preferably, an information processing unit is further provided;

the information processing unit is in communication connection with the finger position prompting unit and is used for controlling the position of the display film for prompting the pressing string according to the finger position information.

Preferably, the information processing unit is connected with the finger position detection unit and is used for acquiring the string pressing position detected by the finger position detection unit.

The invention also provides a stringed instrument, which comprises the stringed instrument finger position prompting and detecting device.

According to the string instrument finger position prompting and detecting device and the string instrument, the display film is arranged on the finger board of the string instrument, and can prompt the string pressing position, so that a practicer can be prompted to press the string position; the string pressing position can be detected by the finger position detection unit.

Drawings

FIG. 1 is a schematic structural diagram of a finger position indicating and detecting device for a stringed musical instrument according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a touch film structure;

FIG. 3 is a schematic view showing the structure of a display film in a finger position indicating and detecting device for a stringed musical instrument according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a stringed instrument finger position cue and detection device in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a finger position indicating and detecting device for a stringed musical instrument according to still another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a finger position indicating and detecting device for a stringed instrument, including:

a finger position indicating unit 5 provided on the fingerboard 2 of the stringed instrument 1; the finger position prompting unit comprises a display film 51, and the display film 51 is used for prompting a string pressing position;

and a finger position detection unit 7 for detecting the string pressing position.

Therefore, the finger position prompting and detecting device for the stringed instrument, provided by the invention, has the advantages that the display film is arranged on the finger board of the stringed instrument, so that the display film can prompt the position for pressing the strings, and a practicer can be prompted to press the string position; the string pressing position can be detected by the finger position detection unit.

The invention also provides a stringed instrument, which comprises the stringed instrument finger position prompting and detecting device.

Both the display film and the touch film adopt ultrathin flexible devices. Since the minimum spacing between fingerboards and strings of many string instruments is only about 2mm, and fingerboards tend to be curved with a certain curvature, the display film and touch film attached to the fingerboards must meet the requirements of being thin and flexible.

At present, the flexible light emitting device includes a luminescent sheet device, an Organic Light Emitting Diode (OLED) device, electronic paper, a graphene display device, and the like.

The electroluminescent sheet is called EL (Electro luminescence) for short, which is a phenomenon of converting electric energy into light energy, and is generally called as luminescence because it does not generate heat during operation. The cold light sheet works on the principle that zinc sulfide particles are driven by alternating current voltages between two electrodes to generate an alternating current electric field, electrons run at a high speed in a light-emitting layer to activate light-emitting atoms, so that the light-emitting atoms are accelerated to obtain enough energy, and the electrons excited by the electric field collide with a light-emitting center and a fluorescent substance, so that jump-change-recombination of electron energy poles is caused to cause a physical phenomenon of emitting high-efficiency cold light, namely an electroluminescence phenomenon. The EL cold light sheet has the advantages of being light and thin as paper, being bendable or cut, occupying no space and being simple and convenient to install.

An OLED (Organic Light-Emitting Diode) is also called an Organic electroluminescent display or an Organic Light-Emitting semiconductor. The OLED is a current-type organic light emitting device, and emits light by injection and recombination of carriers, and the intensity of light emission is proportional to the injected current. Under the action of an electric field, holes generated by an anode and electrons generated by a cathode move, are respectively injected into a hole transport layer and an electron transport layer, and migrate to a light emitting layer. When the two meet at the light emitting layer, energy excitons are generated, thereby exciting the light emitting molecules to finally generate visible light. Compared with an LCD, the OLED display screen is lighter and thinner, has good flexibility, high brightness, low power consumption, quick response, high definition and high luminous efficiency.

The electronic paper technology is a general name of a technology, and is generally called as E-paper technology, an electrophoretic Display (EPD) is mostly adopted as a Display panel, and the Display technology which is comfortable to read, ultrathin, light, bendable and ultra-low in power consumption like paper is generally called as electronic paper technology; the electronic paper is a paper-like electronic display, which has the advantages of paper (such as almost complete visual perception and the like), can continuously convert and refresh the display content like a common liquid crystal display, and saves much power compared with the liquid crystal display. The electronic paper has the advantages of being light, thin, foldable and bendable, fine and smooth in picture display, wide in visual angle and good in visual effect in sunlight without dead angles compared with other display technologies.

The graphene electronic display screen is made of graphene materials, the graphene is resistant to falling and collision, high in light transmittance and good in display brightness, can be curled like paper, and is used as a novel nano material which is the thinnest, the largest in strength and the strongest in electric conduction and heat conduction performance and is called as black gold.

The Touch film is also called as a nano Touch film, and is called as iFoil or interactive foil or Touch film in English. The touch film is a transparent film, can accurately sense the touch of hands, is a core component of an accurate positioning device such as a touch screen and the like, and mainly solves the problem of accurate touch positioning. The high-temperature-resistant and corrosion-resistant flexible PET film is mainly composed of 4 parts, namely a PET film (polyethylene terephthalate, a high-temperature-resistant and corrosion-resistant transparent flexible plastic), a nano wire (a superfine wire prepared by sintering metal nano particles), a control circuit board and driving software.

The touch film is a transparent flexible multi-point touch film and comprises at least one electromagnetic induction layer formed by superfine wire grids. As shown in figure 2, the ultra-fine wire grid encapsulates X-axis nano-wires and Y-axis nano-wires in a PET film by digital encapsulation automation equipment according to a certain rule so as to form an induction matrix, each matrix unit is a proximity sensor capable of sensing touch actions in different directions, the matrix units form a holographic touch induction matrix, a sensing signal is input to a control chip by the touch induction matrix, the control chip eliminates noise, an effective touch signal is input to upper-layer driving software, and functions of accurate positioning, triggering actions and realizing touch are achieved