Laser musical instrument device for triggering electronic simulation sound production through laser induction
The laser piano device enables precise conversion of light signals into electrical signals into sound signals, solving the problem that photoelectric effects and electronic sound control are difficult to demonstrate intuitively in traditional teaching, thus stimulating students' interest and improving teaching effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING BEIJIAO YIZHI TEACHING INSTR TECH CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-24
AI Technical Summary
In traditional physics teaching, the photoelectric effect and electronic sound control are difficult to demonstrate intuitively, making it difficult for students to understand. Furthermore, the principles of music production lack integration with modern electronic technology, resulting in poor teaching effectiveness.
Design a laser piano device, comprising a laser emitting system, a laser receiving system, a circuit control module, an electronic analog sound generation module, and an audio output module. The device triggers electronic analog sound generation through laser sensing, achieving precise conversion of light signals into electrical signals into sound signals, vividly demonstrating the photoelectric effect and electronic sound generation control.
This approach aims to stimulate students' interest in the principles of light-controlled switches and electronically simulated sound production, enhance interactive teaching, visually demonstrate the intrinsic connection between physics and music, and improve teaching quality.
Smart Images
Figure CN224164017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of teaching instrument technology, and in particular to a laser piano device that uses laser sensing to trigger electronic simulated sound production. Background Technology
[0002] In traditional physics teaching, the photoelectric effect and related concepts such as electronic sound control are difficult for students to understand due to their abstract nature. Conventional teaching methods often focus on theoretical explanations, and the accompanying demonstration experiments are monotonous and unengaging, failing to fully stimulate students' learning enthusiasm. Most existing photoelectric effect demonstration devices can only display basic phenomena and are difficult to connect theory with practical applications, resulting in a significant deficiency in students' practical application and expansion of knowledge.
[0003] Meanwhile, teaching the principles of music production often revolves around traditional musical instruments, with little coverage of emerging instruments relying on modern electronic technology. This limits students' understanding of the underlying physics of music, making it difficult to build a comprehensive knowledge system. Therefore, there is an urgent need for an innovative teaching instrument that can both intuitively demonstrate physical principles and closely align with practical applications, thereby comprehensively improving teaching quality. Utility Model Content
[0004] The purpose of this invention is to provide a laser piano device that uses laser sensing to trigger electronically simulated sound, thereby solving the technical problems existing in the prior art. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A laser piano device that triggers electronic analog sound production via laser sensing includes a chassis, a mounting frame, a laser emitting system, a laser receiving system, a circuit control module, an electronic analog sound production module, and an audio output module. The mounting frame is located on the top of the chassis, the laser emitting system is mounted on the mounting frame, and the laser receiving system is located on the top of the chassis and below the laser emitting system. The laser emitting system is in the shape of a pipe organ. The circuit control module, the electronic analog sound production module, and the audio output module are all located inside the chassis. The circuit control module is electrically connected to the laser emitting system, the laser receiving system, and the electronic analog sound production module, respectively. The electronic analog sound production module is electrically connected to the audio output module.
[0007] Preferably, the laser emitting system includes a laser tube and a laser head. Several laser tubes are vertically connected to the fixed frame and distributed sequentially in the horizontal direction. The different laser tubes have different lengths so that all the laser tubes are combined to form a pipe organ shape. Each laser tube is provided with a laser head inside, and the laser head can emit lasers vertically downward.
[0008] Preferably, the laser receiving system includes a light-controlled switch element, which is disposed on the top of the chassis and there is a corresponding light-controlled switch element below each laser head. The light-controlled switch element is electrically connected to the circuit control module.
[0009] Preferably, the circuit control module includes a circuit control circuit board, which is electrically connected to all the light-controlled switching elements.
[0010] Preferably, the electronic analog sound generation module includes an audio synthesis chip, an electronic analog sound generation circuit board, and a power amplifier circuit board. The audio synthesis chip is electrically connected to the circuit control circuit board and the electronic analog sound generation circuit board, respectively. The electronic analog sound generation circuit board is electrically connected to the power amplifier circuit board, and the audio output line of the power amplifier circuit board is electrically connected to the audio output module.
[0011] Preferably, the audio output module includes a speaker, which is electrically connected to the audio output line of the power amplifier circuit board.
[0012] Preferably, the bottom of the chassis is in contact with the ground.
[0013] Preferably, the chassis is provided with an operation panel, which includes a power switch, a tone switching button, and a volume adjustment knob.
[0014] Preferably, the number of laser tubes and laser heads are both 28.
[0015] Preferably, the chassis is provided with heat dissipation holes and sound transmission holes.
[0016] The beneficial effects of this utility model are as follows: the laser emitting system can emit laser light, the laser receiving system can receive the laser light, form an electrical signal, and send it to the circuit control module. The circuit control module can quickly process and analyze the electrical signal transmitted from the laser receiving system, and can send corresponding note trigger commands to the electronic analog sound generation module. The electronic analog sound generation module generates corresponding sound signals according to the pre-set note and timbre correspondence rules, and outputs clear sound through the audio output module.
[0017] Through this precise conversion process of light signal, electrical signal, and sound signal, the laser piano achieves the unique function of triggering electronic simulated sound production through laser sensing. It vividly demonstrates knowledge such as photoelectric effect and electronic sound production control, providing a direct, interesting, and highly interactive teaching tool for physics education. It helps students deeply understand the principle of light-controlled switches and the practical application of electronic simulated sound production, intuitively feel the intrinsic connection between physics and musical sound production, broaden their knowledge horizons, and stimulate their strong interest in exploring the subject of physics. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a structural diagram of the present invention;
[0020] In the diagram: 1. Chassis; 2. Mounting frame; 3. Laser emitting system; 4. Laser receiving system; 5. Circuit control module; 6. Electronic analog sound generation module; 7. Audio output module. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] Reference Figure 1 This utility model provides a laser piano device that triggers electronic analog sound production through laser sensing, including a chassis 1, a mounting frame 2, a laser emitting system 3, a laser receiving system 4, a circuit control module 5, an electronic analog sound production module 6, and an audio output module 7.
[0025] The mounting bracket 2 is located on the top of the chassis 1. The laser emitting system 3 is mounted on the mounting bracket 2. The laser receiving system 4 is located on the top of the chassis 1 and below the laser emitting system 3. The laser emitting system 3 is in the shape of a pipe organ. The circuit control module 5, the electronic analog sound generation module 6, and the audio output module 7 are all located inside the chassis 1. The circuit control module 5 is electrically connected to the laser emitting system 3, the laser receiving system 4, and the electronic analog sound generation module 6, respectively. The electronic analog sound generation module 6 is electrically connected to the audio output module 7.
[0026] The laser emitting system 3 can emit lasers, and the laser receiving system 4 can receive the lasers, form electrical signals, and send them to the circuit control module 5. The circuit control module 5 can quickly process and analyze the electrical signals from the laser receiving system 4, and can send corresponding note trigger commands to the electronic analog sound generation module 6. The electronic analog sound generation module 6 generates corresponding sound signals according to the pre-set rules of note and timbre correspondence, and outputs clear sound through the audio output module 7.
[0027] Through this precise conversion process of light signal, electrical signal, and sound signal, the laser piano achieves the unique function of triggering electronic simulated sound production through laser sensing. It vividly demonstrates knowledge such as photoelectric effect and electronic sound production control, providing a direct, interesting, and highly interactive teaching tool for physics education. It helps students deeply understand the principle of light-controlled switches and the practical application of electronic simulated sound production, intuitively feel the intrinsic connection between physics and musical sound production, broaden their knowledge horizons, and stimulate their strong interest in exploring the subject of physics.
[0028] As an optional implementation, the laser emitting system 3 includes a laser tube and a laser head. Several laser tubes are vertically connected to the fixed frame 2 and distributed in sequence in the horizontal direction. The different laser tubes have different lengths so that all the laser tubes are combined to form a pipe organ shape, so that the laser emitting system 3 can better match the shape design of the pipe organ.
[0029] The laser tube is preferably made of SUS304 alloy stainless steel, which can provide reliable protection for the laser head, improve the durability and anti-interference ability of the device, and ensure that the laser emission system 3 can work stably for a long time under different environmental conditions.
[0030] Each laser tube is equipped with a laser head, and the laser power of a single laser head is preferably 5mW. The laser head can emit lasers vertically downwards. With the help of the electronic analog sound module 6, each laser head can produce sound corresponding to an independent note.
[0031] As an optional implementation, the laser receiving system 4 includes a light-controlled switching element. The operation of the light-controlled switching element is based on the photoelectric effect principle. When certain special materials are irradiated with light, the internal atoms absorb photon energy and release electrons, thereby changing the electrical properties of the material.
[0032] The light control switch element is located on the top of the chassis 1 and there is a corresponding light control switch element below each laser head. The light control switch element has high sensitivity and is vertically aligned with the corresponding laser head to achieve accurate light signal reception. The light control switch element is electrically connected to the circuit control module 5.
[0033] As an optional implementation, the circuit control module 5 includes a circuit control circuit board, which is electrically connected to all light-controlled switching elements. The circuit control circuit board can integrate key components such as signal processing circuits and microprocessors, and plays a control role over the entire device.
[0034] As an optional implementation, the electronic analog sound generation module 6 includes an audio synthesis chip, an electronic analog sound generation circuit board, and a power amplifier circuit board. The audio synthesis chip has a rich built-in timbre library. Based on electronic analog technology, it can generate a variety of timbres according to the instructions sent by the circuit control module. The audio synthesis chip can pre-store a timbre library covering common musical instruments such as piano, violin, and guitar, as well as a variety of special sound effects, which greatly enriches the sound generation effect of the laser piano.
[0035] The audio synthesis chip is electrically connected to the circuit control circuit board and the electronic analog sound generation circuit board, respectively. The electronic analog sound generation circuit board is electrically connected to the power amplifier circuit board, thereby constructing a complete sound signal processing path. The audio output line of the power amplifier circuit board is electrically connected to the audio output module 7 to ensure that the sound signal can be smoothly transmitted to the audio output module 7 for amplification and playback.
[0036] Upon receiving a note trigger command, the audio synthesis chip can quickly generate a precise audio signal according to the preset note-timbre correspondence. This audio signal is processed by the power amplifier circuit board to enhance the signal strength to an appropriate level, and finally outputs a clear and loud sound through the connected audio output module 7. The sound power can reach 10W, ensuring that students can clearly hear the demonstration sound even in a large space.
[0037] As an optional implementation, the audio output module 7 includes a speaker that is electrically connected to the audio output line of the power amplifier circuit board. The speaker can achieve high-quality sound output, accurately reproduce the various timbres generated by the electronic analog sound generation module 6, and make the notes played by the laser piano fuller and more layered, bringing students a high-quality auditory experience and comprehensively optimizing the teaching demonstration experience.
[0038] As an optional implementation, the bottom of the chassis 1 is in contact with the ground, forming a floor-standing design. The external dimensions of the chassis 1 are preferably 80×20×160cm, which can adapt to the space requirements of various teaching venues while ensuring the stability of the device, making it convenient for teachers to operate and students to observe.
[0039] As an optional implementation, the chassis 1 is provided with an operation panel, which is equipped with a power switch, a tone switching button and a volume adjustment knob. The power switch, tone switching button and volume adjustment knob can all be electrically connected to the circuit control module 5, thereby ensuring that the various functions of the device can be accurately controlled.
[0040] As an optional implementation, the number of laser tubes and laser heads is 28. The 28 laser heads can match the design effect of 28 laser pianos, which is closer to a real pipe organ.
[0041] As an optional implementation, the chassis 1 is preferably made of Q235 high-quality galvanized steel sheet according to the design dimensions, which can provide reliable protection for each module, improve the durability and anti-interference ability of the device. The chassis 1 is provided with heat dissipation holes and sound transmission holes, which helps to dissipate heat inside the chassis 1, and at the same time allows the sound of the speaker to be emitted from inside the chassis 1.
[0042] The working principle of a laser piano device that triggers electronically simulated sound through laser sensing is as follows:
[0043] Place the floor-standing 28-channel laser piano device in a suitable location in the classroom, connect the power, and turn on the power switch. The 28 laser heads in the organ-shaped area will start up and emit 28 parallel and bright laser beams downwards, forming a neat and orderly laser light curtain.
[0044] When the laser beam emitted by the laser head shines on the light-controlled switch element, the electrons in the element are excited by photons, causing the resistance value of the element to change, and the current in the circuit changes accordingly. At this time, the circuit is in an initial stable state, the electronic analog sound module 6 is not activated, and the laser piano does not emit any sound.
[0045] Once an object (such as a finger) blocks a laser beam, the corresponding light-controlled switch element quickly senses the change in light intensity. The light intensity decreases sharply, the resistance value increases rapidly, and the current in the circuit decreases drastically, converting the light signal into an electrical signal. This electrical signal is transmitted to the circuit control module 5. The circuit control module 5 uses a high-performance microprocessor, which can quickly process and analyze the signal from the light-controlled switch element, accurately determine the position of the blocked laser head, and then send the corresponding note trigger command to the electronic analog sound generation module 6. The electronic analog sound generation module 6 generates the corresponding audio signal using an audio synthesis chip according to the pre-set rules of note and timbre correspondence. After the signal is amplified by the power amplifier circuit, it outputs clear sound through the speaker.
[0046] Through this precise conversion process of optical signal-electric signal-sound signal, the laser piano realizes the unique function of triggering electronic analog sound production by means of light control switch, vividly demonstrating the working process of light control switch principle and electronic analog technology in actual music production application;
[0047] Meanwhile, the circuit control module 5 has the function of fine-tuning the laser emission power and the sensitivity of the light control switch element. Teachers can flexibly adjust it according to different teaching scenarios and demonstration needs to ensure that the system always maintains the best working state.
[0048] Compared to traditional physics demonstration instruments, this device ingeniously integrates light-controlled switches and electronic simulation technology, transforming abstract physical principles into an intuitive and engaging musical performance experience. Students can also operate the laser piano themselves, gaining a deeper understanding of the principles of light-controlled switches and electronic simulation sound production mechanisms. At the same time, they can experience the cross-disciplinary connection between physics and music, greatly enhancing their learning interest and participation, and significantly improving teaching quality and effectiveness.
[0049] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A laser piano device that triggers electronically simulated sound through laser sensing, characterized in that, The system includes a chassis (1), a mounting bracket (2), a laser emitting system (3), a laser receiving system (4), a circuit control module (5), an electronic analog sound generation module (6), and an audio output module (7). The mounting bracket (2) is located on the top of the chassis (1). The laser emitting system (3) is located on the mounting bracket (2). The laser receiving system (4) is located on the top of the chassis (1) and below the laser emitting system (3). The laser emitting system (3) is in the shape of a pipe organ. The circuit control module (5), the electronic analog sound generation module (6), and the audio output module (7) are all located inside the chassis (1). The circuit control module (5) is electrically connected to the laser emitting system (3), the laser receiving system (4), and the electronic analog sound generation module (6), respectively. The electronic analog sound generation module (6) is electrically connected to the audio output module (7). The laser emitting system (3) includes a laser tube and a laser head. Several laser tubes are vertically connected to the fixed frame (2) and distributed in sequence in the horizontal direction. The lengths of the different laser tubes are different so that all the laser tubes are combined to form a pipe organ shape. Each laser tube is provided with a laser head inside. The laser head can emit lasers vertically downward. The laser receiving system (4) includes a light control switch element, which is disposed on the top of the chassis (1) and there is a corresponding light control switch element below each laser head. The light control switch element is electrically connected to the circuit control module (5). The circuit control module (5) includes a circuit control circuit board, which is electrically connected to all the light-controlled switch elements; The electronic analog sound module (6) includes an audio synthesis chip, an electronic analog sound circuit board and a power amplifier circuit board. The audio synthesis chip is electrically connected to the circuit control circuit board and the electronic analog sound circuit board respectively. The electronic analog sound circuit board is electrically connected to the power amplifier circuit board. The audio output line of the power amplifier circuit board is electrically connected to the audio output module (7).
2. The laser piano device for triggering electronic simulated sound production via laser sensing according to claim 1, characterized in that, The audio output module (7) includes a speaker, which is electrically connected to the audio output line of the power amplifier circuit board.
3. The laser piano device for triggering electronic simulated sound production via laser sensing according to claim 1, characterized in that, The bottom of the chassis (1) is in contact with the ground.
4. The laser piano device for triggering electronic simulated sound production via laser sensing according to claim 1, characterized in that, The chassis (1) is provided with an operation panel, which is provided with a power switch, a tone switching button and a volume adjustment knob.
5. The laser piano device for triggering electronic simulated sound production via laser sensing according to claim 1, characterized in that, The number of laser tubes and laser heads are both 28.
6. The laser piano device for triggering electronic simulated sound production via laser sensing according to claim 1, characterized in that, The chassis (1) is provided with heat dissipation holes and sound transmission holes.