744 results about "Piano" patented technology

The invention relates to the technical field of music teaching, and discloses a piano pedal motion range indicating device for music teaching, which comprises a placing plate and an indicating structure arranged on the placing plate, and is characterized in that a sucker is mounted at the bottom of the placing plate; the indicating structure comprises an indicating frame, a soft pedal display screen, a noise reduction pedal display screen and a tenuto pedal display screen are sequentially arranged on the front face of the indicating frame from left to right, a reminding piece for reminding pedal switching is further arranged on the indicating frame, and a first indicating piece for displaying actions of the soft pedal is arranged on the soft pedal display screen. Through the arrangement of the indication structure, the action and amplitude of the piano pedal can be displayed, so that accurate reminding of the action of the piano pedal is realized, a practicer can conveniently and accurately control the action amplitude of the piano pedal, teaching display of the piano is further facilitated, the teaching effect of the piano can be improved, and rapid learning of the piano is facilitated.

The invention relates to the field of piano intelligent display, in particular to a playing data display method and system, and the method comprises the steps: obtaining music score data; the music score data comprises one or more of the following: standard time values, standard strength, standard fingering and standard pitches corresponding to the plurality of notes; the playing data of the user are obtained, the playing data of the user comprise data sets at multiple moments, and the data sets comprise one or more of the following data: time value data, force data, fingering data and pitch data; judging whether at least one data group is matched with the corresponding music score data or not; if yes, correlation comparison is carried out on the music score data and the matched data set, and the difference degree is calculated; and displaying the music score, and displaying the associated data group in a region corresponding to the notes. According to the playing data display method provided by the invention, visual optimization can be realized on the basis of ensuring the integrity of playing parameters.

The present application relates to the technical field of piano, in particular to a piano pedal system, comprising an external unit and an additional unit; the external unit comprises: an external pedal module comprising at least one external pedal; a data acquisition module for acquiring the pedal data of the external pedal; a height adjustment module comprising a driving mechanism and two supporting mechanisms, the driving mechanism comprising a driving motor, a driving gear fixedly connected with the output shaft of the driving motor and two driving racks, the two driving racks being oppositely engaged on both sides of the driving gear, the supporting mechanisms being one-to-one arranged with the driving racks, the supporting mechanisms being connected between the driving racks and the external pedal module, the driving racks driving the supporting mechanisms to stretch or retract to realize the height adjustment of the external pedal module; the additional unit is used for stepping on the corresponding piano pedal according to the pedal data. The present application can be applied to different types and models of pianos and improve the accuracy and convenience of the height adjustment of the pedal.

The invention discloses a hand exoskeleton control system and method for piano on-demand auxiliary teaching. The hand exoskeleton control system comprises a hand exoskeleton mechanical module, a dynamics module, an outer ring admittance controller, an inner ring position controller and an online compensation unit. The hand exoskeleton mechanical module is composed of a servo motor, a dynamic torque sensor, a hand exoskeleton base, a shaft sleeve, a palm fixing plate and a finger module. The dynamics module is used for constructing a dynamics simplified model of the finger module; the outer ring admittance controller is used for generating a compliant trajectory compensation amount conforming to the actual dynamic response; the inner ring position controller is used for dynamically adjusting the output torque of the servo motor, reducing buffeting of the sliding mode and realizing finger playing trajectory tracking; and the online compensation unit is used for performing real-time estimation and feed-forward compensation on a nonlinear disturbance term existing in the tracking error of the inner loop position controller based on the RBF neural network.

The invention discloses an intelligent piano teaching projection device and method based on computer vision. The device comprises a data acquisition and projection module, a calibration module, a data processing module, a side projection module and an auxiliary module. The intelligent piano teaching projection method realized based on the device comprises the following steps: segmenting a top view image of a player in a piano key area acquired by the data acquisition and projection module by using a Mask2form image segmentation model; constructing a finger skeleton of the player by using a finger skeleton modeling algorithm, judging whether the player performs playing correctly at the current moment, if so, keeping the light projection position of the data acquisition and projection module unchanged, prompting the player to press the keys again, and if not, stopping playing. If yes, keys needing to be pressed down and pedals needing to be treaded down at the next moment are prompted through projection, and guidance is provided for a player. According to the invention, the piano does not need to be transformed, and piano guidance can be realized through projection only by fixing the device on the piano.

A piano includes a first key on an upper side rotatably supported at a rear end by a balance pin via a balance pin hole, and pressed by a player, a second key on a lower side rotatably supported at a central portion, the second key a front end of which the first key abuts, an action that is arranged below the second key and includes a whippen that is rotated upward to drive a hammer to perform string striking, a wire material that lifts the whippen in response to press of the first key, and a keystop rail that comes into contact with a pin rear portion of the first key from above and prevents lift of the first key in the vicinity of the balance pin hole to such an extent that the first key does not pry when the first key is pressed.

The invention provides a self-adaptive rhythm electronic piano accompaniment system based on artificial intelligence, and the system comprises a single-key triggering module which is used for indicating an accompaniment process; the speed-control signal conversion module is used for converting the speed signal acquired by the inductive sensor into a music control signal; the storage module is used for storing accompaniment note sequence data of the song; and the artificial intelligence accompaniment generation module adjusts the accompaniment rhythm according to the trigger signal and the playing speed, and generates accompaniment sound or harmony in real time. The system further comprises a pitch calculation unit, a timbre parameter adjustment module, a timbre generation module, a dynamic range adjustment module, a timbre smooth transition module, an automatic harmony generation module, a volume dynamic adjustment module and an audio output module. The control unit receives a user instruction and adjusts system setting parameters. Intelligentization and self-adaption of the accompaniment can be achieved, self-adjustment of the playing speed of the accompaniment is achieved, the playing speed of the accompaniment is kept consistent with the singing speed of the user, the playing flexibility and expressive force are improved, and the playing experience is improved.

The invention relates to the technical field of piano pedal control, in particular to a pedal control method and system, the method is applied to a pedal system, the pedal system comprises an external unit and an additional unit, the external unit comprises an external pedal module, and the additional unit comprises a pedal driving module. The treading driving module is used for treading corresponding piano pedals according to the treading data; the external unit comprises a first external unit; correspondingly, the method comprises the following steps: acquiring a first external data source through a first external unit; generating a first analog signal according to the first external data source by adopting a first screening rule; the method comprises the steps that whether a pedal value is larger than a preset first treading threshold value or not is judged; if yes, identifying the pedal value as a to-be-simulated data source; generating a first analog signal according to the to-be-simulated data source; the first analog signal is transmitted to a treading driving module, and the treading driving module responds to the first analog signal to drive a piano pedal. According to the invention, the efficiency of practicing the pedaling technology by the user can be greatly improved.

The utility model discloses an interactive display device for a piano mechanical structure, and relates to the technical field of music education. The device comprises a key model structure, a pedal interaction structure and an audio-video playing unit. The key model structure comprises keys, supporting pieces, ejector rods, hammers and strings, one ends of the keys are connected with one ends of the ejector rods, the other ends of the ejector rods are connected with the hammers, and the striking direction of the hammers faces the strings; the pedal interaction structure comprises a pedal and a treading sensing unit, the downward pressing direction of the pedal faces the other end of the key, and the treading sensing unit is used for sensing the treading action of the foot of the human body on the pedal; and the audio-video playing unit is connected with the treading sensing unit and is used for playing a piano internal structure display video. According to the utility model, the interactive experience can be improved, the learning interest and participation sense of audiences are enhanced, and the complex mechanical principle of the piano becomes easy to understand and memorize, so that the effects of music education and musical instrument display are improved.

The invention discloses a soft reset type electric piano counterweight keyboard, and relates to the technical field of piano equipment. A key assembly is arranged at the top of the piano shell; a hinge frame is fixedly installed at the bottom in the piano shell through bolts, soft and feedback playing hand feeling is achieved through precise mechanical linkage, meanwhile, the position of an inductance piece is changed by sliding and extruding a clamping bead through a balance weight, and high-precision and high-reliability pressing force detection is achieved in combination with optical sensing auxiliary monitoring. The force signal is converted into keyboard'post-touch layer 'control, and a single-key or global tenuto mode is intelligently distributed; in addition, the key contact state is accurately captured through photoelectric induction, space capture is carried out on hand actions in combination with an infrared camera and a sensing radar, and real-time tactile feedback is provided through electromagnetic driving.

The invention relates to the field of piano intelligent display, in particular to a data set display method, system and device and a medium. The music score data comprises one or more of the following: standard time values, standard strength, standard fingering and standard pitches corresponding to the plurality of notes; the playing data of the user are obtained, the playing data of the user comprise data sets at multiple moments, and the data sets comprise one or more of the following data: time value data, force data, fingering data and pitch data; judging whether at least one data group is matched with the corresponding music score data or not; if yes, correlation comparison is carried out on the music score data and the matched data set, and the difference degree is calculated; and displaying the music score, and displaying the associated data group in a region corresponding to the notes. According to the playing data display method provided by the invention, visual optimization can be realized on the basis of ensuring the integrity of playing parameters.

A key depression amount sensor device (100) that is installed below keys of a piano, which keys are aligned along a longitudinal axis, and that detects a depression amount of each of the keys, the key depression amount sensor device including: an electronic circuit board (112) including a plurality of optical sensors that respectively detects the depression amounts of the keys by reflection of light; a housing (110) that extends along the longitudinal axis and houses the electronic circuit board; a clamp mechanism (130) that sandwiches an action beam (300), which is positioned below the keys, in a longitudinal axis direction; and a connection mechanism (120) that connects the clamp mechanism and the housing.

The invention discloses a piano pedal with a height adjusting function, which comprises a box body, the piano pedal is rotatably mounted on one side of the box body, and a mounting groove is formed in the piano pedal; the fixing cylinder is arranged on the inner side of the mounting groove, one end of the fixing cylinder is provided with a connecting shaft which is in running fit with the mounting groove, and one end of the connecting shaft penetrates through one side wall of the piano pedal and is fixedly connected with a first worm gear; when the height of the piano pedal needs to be adjusted, the height of the adjusting plate can be driven to change by exposing the fixed cylinder and prolonging the telescopic distance of the telescopic rod, so that the bottom of a foot can be in direct contact with the adjusting plate, and normal treading operation of the piano pedal is realized; meanwhile, the angle of the fixing cylinder and the angle of the adjusting plate can be adjusted, the adjusting plate can be better attached to the bottom of the foot of the human body, in addition, in the process that the piano pedal is treaded, dust on the piano pedal can be cleaned, and the tidiness and attractiveness of the piano pedal are kept.

The invention discloses a piano teaching interaction method based on a skeleton point image recognition technology. The method comprises the following steps: S1, collecting video data of hand actions when a user plays a piano; s2, carrying out preprocessing on the video data; s3, extracting hand skeleton point data by using the skeleton point extraction model to obtain a skeleton key point data set; s4, training a hand action recognition network model by using the extracted skeleton key point data set and the loss function; and S5, inputting the real-time output of the skeleton point extraction model into the trained hand action recognition network model, and detecting the correctness of the hand posture. According to the method, the motion information of the hands of the piano player can be captured and analyzed in real time with high precision, and targeted and personalized teaching feedback can be realized through deep mining of skeleton point data, so that the interactivity and teaching efficiency of piano teaching are improved.

The utility model discloses a piano cover capable of flexibly rotating and positioning for a new energy electronic piano, which relates to the technical field of electronic musical instruments and comprises a piano body and a flip cover, and rotating mechanisms are fixedly connected to positions, close to the rear side, of the left and right sides of the piano body and positions, close to the front side, of the left and right sides of the flip cover. The outer side of the rotating mechanism is fixedly connected with first connecting rods, the two first connecting rods are symmetrically distributed left and right, the position, close to the front side, of the lower surface of the turning cover is rotationally connected with a turning plate, and the positions, close to the left side and the right side, of the inner side of the turning plate are fixedly connected with turning mechanisms. According to the piano cover for the new energy electronic piano capable of being flexibly rotated and positioned, the turning plate is turned down and fixed through the turning mechanism, and the turning cover is rotated into a step shape by virtue of the first connecting rod, so that the turning cover can be used as a placement rack for articles such as a music score, and the piano cover is more diversified in function, convenient to operate and integrated with more functions; and the problem that the overall size is increased due to dispersion of functional parts is avoided.

The utility model discloses a digital piano with light guide keys, and relates to the technical field of digital pianos. The top side of the musical instrument frame lower shell is fixedly provided with a musical instrument frame upper shell through bolts. A mainboard is fixedly arranged on the top side of the piano frame upper shell, through rotation of the piano key body, on one hand, a reset piece on the rotating frame is pulled to be conducted, and on the other hand, a bottom button is extruded to trigger a PCB signal board to generate an electric signal and transmit the electric signal to a functional key board, and the functional key board supplies power to an LED lamp board; the generated colorful RGB light source enters the transparent light guide plate through the concave semicircle and the side opening, and is precisely scattered by the built-in array reflectors to form a multi-angle, large-range, uniform and soft lighting effect, and the diamond structure on the surface of the transparent light guide plate further prevents strong light dazzling and optimizes visual experience; and secondly, the loudspeaker component on the inner side is synchronously activated to give out corresponding note sound, so that instant and immersive linkage feedback of dynamic colors of sound and light is realized when a user presses the light guide keys each time.

The invention relates to the field of sensors, in particular to a pressure-tactile sensor based on a common electrode structure and application thereof, and the pressure-tactile sensor comprises a first electrode layer, an air dielectric layer, a conductive layer, a mixed pressure sensitive layer and a second electrode layer from top to bottom, wherein the air dielectric layer is formed at the middle position by arranging insulating cushion blocks at the edge between the first electrode layer and the conductive layer, and an output electrode layer is arranged between the insulating cushion block at one side and the conductive layer. The sensor can be used in wearable health equipment to realize health monitoring, can be integrated to a signal acquisition and processing system, and is combined with a graphical programming platform to realize accurate control of electronic piano key tones and volumes. Good application prospects and important technical development potential are shown in the fields of intelligent interaction interfaces, intelligent musical instruments, human-computer interaction and the like.

The invention provides a multi-mode interactive piano teaching and training system, and relates to the technical field of piano teaching and training, and the system carries out the cooperative fitting of a reciprocating motion track, obtains a cooperative contraction rule of a finger of a player on a piano keyboard, determines a fingering control label during the fingering rhythm synchronization according to the cooperative contraction rule, and carries out the fingering control. The fingering control label is used for carrying out tactile path guidance on the fingering decision attribute during playing; performing cross comparison on the rhythm synchronization data and the dynamic playing information to obtain a rhythm deviation identifier during music style conversion, and further performing auditory perception regulation and control on a beat point time sequence interval during playing through rhythm compensation constraint; and carrying out interactive fusion on the finger moving decision attribute after tactile path guidance and the beat point time sequence interval after auditory perception regulation and control, generating a playing manifold without a track, and projecting the playing manifold to the surface of the key in real time. According to the method and the device, real-time guidance of piano teaching can be formed in multi-modal interactive fusion teaching, so that the training adaptability of a player is improved.

The utility model discloses a piano music stand which comprises a base, a supporting rod arranged at the upper end of the base and a placing plate arranged at the upper end of the supporting rod, a supporting plate is arranged at the bottom end of the placing plate, a baffle is arranged at the end, away from the placing plate, of the supporting plate, and the piano music stand further comprises a first pressing mechanism and a second pressing mechanism, the pressing plate is arranged at the lower end of the placing plate and is used for pressing the bottom end of the piano score; the second pressing mechanism is arranged at the upper end of the placing plate and is used for pressing the top end of the piano score; and the rotating mechanism is arranged on the supporting rod and is used for rotating the placing plate. According to the piano score pressing device, the first pressing mechanism and the second pressing mechanism are arranged, the first pressing mechanism presses the bottom end of a piano score, the second pressing mechanism presses the top end of the piano score, and the first pressing mechanism and the second pressing mechanism can press the piano scores of different sizes, so that the position of the piano score on the supporting plate is stable; and the falling condition is avoided, so that the influence on the use feeling of a user is avoided.

The present application provides a multimodal interactive piano teaching and training system, which relates to the technical field of piano teaching and training. The system performs collaborative fitting on the reciprocating motion trajectory to obtain the collaborative contraction rules of the player's fingers on the piano keyboard. The fingering control labels during fingering rhythm synchronization are determined according to the collaborative contraction rules, and then the fingering control labels are used to guide the fingering decision attributes during playing by tactile paths; the rhythm synchronization data and dynamic playing information are cross-compared to obtain the rhythm deviation identifier during music style conversion, and then the beat timing spacing during playing is auditory perceptually regulated by the rhythm compensation constraint; the fingering decision attributes after tactile path guidance and the beat timing spacing after auditory perceptual regulation are interactively fused to generate a playing manifold of an unseen piece of music and project it onto the key surface in real time. The present application can form real-time guidance for piano teaching in multimodal interactive fusion teaching to improve the player's training adaptability.

1. Name of the designed product: toy music piano (panda). 2. Use of the designed product: for toys. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

1. Name of the Design Product: Card-reading Piano Calendar. 2. Use of the Design Product: For entertainment playing, audio playing, or placing (calendar) cards in the clamping plate. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

1. The name of the design product: toy piano. 2. The use of the design product: for toy piano. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application discloses a piano music segmentation and note recognition algorithm based on a deep learning network, and comprises the following steps: based on a recurrent neural network, obtaining the starting point of each single tone from a continuous piano audio; according to the starting point of each single tone, segmenting a complete piano audio signal into several single tone audios; constructing an audio data set for pitch recognition; pre-processing signals in the audio data set, drawing a transformed spectrogram, and simultaneously segmenting the spectrogram according to the frequency band of each fundamental frequency to obtain a sub-spectrogram; taking the multiple sub-spectrograms segmented from the spectrogram as input, and recognizing the pitch through multiple convolutional neural networks. Compared with a traditional time domain method, the application no longer depends on the selection of a threshold, improves the generalization ability, compared with a traditional frequency domain method, simplifies the calculation process, and improves the running speed.

1. Name of the designed product: piano (S80). 2. Use of the designed product: the designed product is used for playing music. 3. Design points of the designed product: the shape, pattern and their combination of the product. 4. Picture or photo showing the design points: perspective view 1.

The utility model relates to the technical field of piano measuring tools, and discloses a piano side plate positioning measuring tool, which comprises a fixed seat and a movable seat sleeved on the fixed seat and capable of sliding along the fixed seat, the side surface of the fixed seat is provided with a graduated scale fixedly connected with the fixed seat, and the bottom surface of the fixed seat is provided with a positioning block detachably connected with the fixed seat. And the edge of the movable seat is parallel to scales of the graduated scale. Compared with the prior art, the positioning block is used for fixing the fixed seat, the distance between the piano side plate positioning hole and other point positions is measured by sliding the movable seat, and the piano side plate positioning hole measuring structure is simple and reliable, easy to operate and good in use experience.

1. The name of the design product: ceiling machine panel. 2. The use of the design product: for ceiling machine panel, air conditioner indoor unit parts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design.

An injection molded wippen or repetition flange bushing for a grand piano action where the bushing has four supports posts or elongated appendages projecting outward from the outer surface of the sleeve member of the injection molded wippen or repetition flange bushing. The four supports posts help reduce or eliminate shrinkage of the sleeve member during the cooling stage in the manufacturing of the injection molded wippen or repetition flange bushing. This occurs because shrinkage occurs in the four support posts and not in the sleeve member portion of the injection molded wippen or repetition flange bushing. The result is a perfectly straight bushing with an extremely precise and accurate bushing surface that produces perfect wippen or repetition rotation.

The invention discloses a visual piano teaching aid and a control system thereof, and belongs to the technical field of pianos. The visual piano teaching aid comprises a piano body, the piano body comprises a transparent soundboard cover plate, a transparent soundboard, a transparent keyboard cover plate and a transparent music stand plate; the transparent soundboard cover plate, the transparent soundboard, the transparent keyboard cover plate and the transparent music stand plate are all made of optical-grade materials with the light transmittance larger than or equal to 60% and used for replacing non-transparent parts corresponding to the piano, and therefore the internal mechanical structure of the piano is visualized. According to the system, the complete visualization of the internal mechanical structure of the piano is realized through the high-transparency component with the light transmittance being greater than or equal to 60%, and unprecedented visual experience is brought to piano teaching. A learner can clearly observe a hammer string striking process corresponding to each key, a precise linkage mechanism of a string striking machine and a vibration transmission path of a soundboard, and the visual teaching mode can help the learner to deeply understand a sounding principle and key touch skills of a piano.

1. The name of this design product: Electric Piano (New Magnetic Splicing Model). 2. Purpose of this design product: This design product is used for playing music. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.