CN106601219B - Musical instrument playing music by using plants and control method thereof - Google Patents
Musical instrument playing music by using plants and control method thereof Download PDFInfo
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- CN106601219B CN106601219B CN201610178497.5A CN201610178497A CN106601219B CN 106601219 B CN106601219 B CN 106601219B CN 201610178497 A CN201610178497 A CN 201610178497A CN 106601219 B CN106601219 B CN 106601219B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0008—Associated control or indicating means
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H3/00—Instruments in which the tones are generated by electromechanical means
- G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
- G10H3/125—Extracting or recognising the pitch or fundamental frequency of the picked up signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The invention discloses a musical instrument played by plants, which comprises: a plant pot in which plants interacting with a person are planted; the detection module is connected with the plant insulated from the ground and used for detecting the change of the electric signals generated when the human touches different positions of the plant; the control chip is used for outputting an electric signal to the detection module and generating different audio control signals according to the change of the electric signal; the audio playing module is used for receiving audio control signals output by the control chip due to the fact that a person touches different positions of the plants and outputting sounds with different frequencies; the power module is used for providing working voltage for the control chip and the audio playing module; the invention also discloses a control method of the musical instrument played by the plants; according to the invention, brand-new human-computer interaction experience of music can be created by touching the plants, and sounds with different frequencies can be made by touching different parts of the plants, so that a new gate is opened for an artist to explore a new music form and create.
Description
Technical Field
The invention relates to man-machine interaction technology, in particular to a musical instrument playing music by using plants and a control method thereof.
Background
Capacitive touch sensing technology has grown in popularity in electronic musical instruments. Patent document CN105161088A discloses a capacitive touch-based detection device, an electronic musical instrument vibration detection system and a method, and provides a capacitive touch-based detection device, an electronic musical instrument vibration detection system and a method. It comprises the following steps: a metal plate for realizing capacitive touch; a capacitance measuring module for measuring capacitance on the metal plate; and a knocking judgment module for judging whether knocking exists or not according to the capacitance value. Acquiring a capacitance value in real time, and comparing and judging the acquired capacitance value; the current capacitance value is larger than the threshold value and the last capacitance value is smaller than the threshold value, and the triggering of the sound opening event is judged; and if the current capacitance value is smaller than the threshold value and the last capacitance value is larger than the threshold value, determining that the sound closing event is triggered. The invention adopts the detection device based on capacitive touch to judge whether the electronic musical instrument has knocking, so as to eliminate crosstalk, improve sound quality, and has simple structure and convenient operation, thereby bringing better economic benefit for enterprises. However, the invention must rely on a metal plate as an interaction carrier, and cannot be applied to living bodies such as plants, and has quite limitations.
Swept capacitance touch sensing technology SFCS (Swept frequency capacitive sensing) is a new generation of touch sensing technology. The technology can change almost any object into a device which is sensitive to human touch, and can work by only needing one wire. It can sense various frequencies emitted by the body part, and further analyze what way or action the user touches, such as a finger or an arm, and it can help the computer "snoop" what the user is doing. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pages 483-492,2012, touch: enhancing Touch Interaction on Humans, screens, liquids, and Everyday Objects and CHI'10Extended Abstracts on Human Factors in Computing Systems,Pages 4135-4140, sensing Human Activities With Resonant Tuning. In a typical capacitive sensor, a conductive element is subjected to an electrical signal of a fixed frequency, and the properties of the electrical signal change when a person touches the element, thereby detecting whether a person touches the element. SFCS is similar to a capacitive touch sensor in principle, and can detect capacitance at the time of touch and can directly detect a change in voltage. Unlike the conventional art, the SFCS can detect amplitude values, i.e., spectrum variations, in a large bandwidth of several MHz. When a person touches the element, the attribute changes of the electric signals at all frequencies caused by different touch actions are different, and the sensor monitors the attribute changes of the electric signals at all frequencies in the range, so that whether touch occurs or not can be identified, and how to touch can be identified. The technology has innovation, breaks through the weaknesses of relatively high cost and limited perceived information of the traditional capacitive touch sensor, and enables people to perceive touch behaviors of most articles in daily life. In the future, the keyboard, mouse and even the previous touch screen may not be needed if the technology is widely used. However, this technology also has limitations such as that the touch action of a person needs to be preset in advance, the degree of accuracy stabilization has great difficulty, the application scene is not clear enough, and it is difficult to identify which part of the object the person touches at all.
The plant electrical signal is an important plant physiological signal related to plant physiological process and in-vivo transmission information, and is the response of a plant to environmental change stimulus. With the development of modern weak signal detection processing technology and the wide application of computer information acquisition technology in agriculture, the extraction and analysis of weak electric signals of plants are more feasible and scientific. At present, a mature technology for collecting plant electric signals exists. The patent document with publication number CN101021518 discloses a method for detecting plant electric signals in a greenhouse and special equipment thereof, which uses a non-polarized electrode as a reference electrode and a measuring electrode, uses an electrode connecting device to connect the electrode with plant stems or leaves to be detected without damage, uses impedance converters with input impedance larger than 1012 omega to be respectively connected with the output ends of the electrode, the signal output ends of the impedance converters are connected with a preamplifier, the signal output by the preamplifier is converted into a current signal by a voltage-current converter and then is transmitted to a signal processing device for processing, the change of the plant electric signals can be monitored in the greenhouse for a long time without damage, the detected weak plant electric signals are processed to separate signals and noise, and when environmental factors are changed, main factors causing the change of the plant electric signals can be calculated and given through a certain algorithm, thereby providing preconditions for the plant electric signal detection to change from laboratory research and service.
In another example, patent document with publication number CN102305888 discloses a plant electricity distribution and rule collection and processing implementation device along with environmental change, where a detection amplifier detects distribution of bioelectric current and voltage of each part of a plant by using multiple probes, and transmits data detected by each detector to a GPRS or EVDO module wireless transceiver module, and transmits the data to a GPRS or EVDO module of a detection center to receive the data through a public wireless network, and the received data is sent to a computer through an interface for data storage and processing, so that the change situation of plant electricity can be measured under various complex conditions.
In order to improve living interest, researchers have developed a human-plant interaction device by combining a capacitive touch sensing technology with plant electric signals, and patent document publication number CN 203773942 discloses a plant interaction device and system. The plant interaction device comprises: the detection module is used for connecting plants or vegetables and fruits insulated from the ground so as to form an RC oscillating circuit due to the touch of human bodies and the plants or the vegetables and fruits; the control chip is used for outputting a pulse signal to the detection module and judging whether a human body touches a plant or a vegetable or fruit according to the charge and discharge time of the RC oscillation circuit; the audio playing module is used for outputting an audio signal after receiving a control signal output by the control chip due to the fact that a human body is judged to be touched with plants or vegetables and fruits; and the power supply module is used for providing working voltage for the control chip and the audio playing module. The playing effect is realized by detecting whether the human body is in contact with plants or vegetables or fruits to serve as a switching signal of the audio playing module, and the plants or the vegetables or fruits are used as 'switches', so that the using interest of a user is improved. However, the method only can identify that the user touches the plant, but cannot identify the touched part, and the method does not relate the part to the pitch, so that the experience of the user is limited.
In another example, patent document CN 204759418 discloses an ecological plant interaction device based on distributed capacitance sensing technology, which comprises a soil placing groove and a control groove, wherein the control groove is buckled inside the soil placing groove, a distributed capacitance detection probe is arranged at the bottom of the soil placing groove, a control main board, a battery, a loudspeaker, a charging port and an indicator lamp are arranged in the control groove, the battery, the loudspeaker, the charging port and the indicator lamp are respectively connected with the control main board, the distributed capacitance detection probe is fixedly arranged right above the control main board, the loudspeaker is fixedly arranged at the bottom of the control groove, and the indicator lamp and the charging port are respectively fixedly arranged at the left side and the right side of the control main board. The device senses the change of the capacitance of the plant to the ground, and distinguishes whether the plant touches the human body or waters or changes the environment through analysis, so that the response is realized in the form of light and sound; and feeding back the touch of one plant to another plant through the Internet; the device has simple and practical structure, small volume and no space occupation, and fully utilizes the internal space of the device to set up a plurality of modules and is easy to assemble.
However, the plant interaction device in the prior art only senses sounding or lighting after touching, can only increase interestingness, and cannot be used as a musical instrument to play music.
Disclosure of Invention
The invention provides a musical instrument which plays music by using plants, and the music creation and music enlightenment modes can be enriched by touching the plants.
A plant-played musical instrument, comprising:
a plant pot in which plants interacting with a person are planted;
the detection module is connected with the plant insulated from the ground and used for detecting the change of the electric signals generated when the human touches different positions of the plant;
the control chip is used for outputting an electric signal to the detection module and generating different audio control signals according to the change of the electric signal;
the audio playing module is used for receiving audio control signals output by the control chip due to the fact that a person touches different positions of the plants and outputting sounds with different frequencies;
and the power supply module is used for providing working voltage for the control chip and the audio playing module.
The invention aims to solve the technical problems of limitations of the existing musical instrument manufacturing technology, touch sensing technology and plant electricity acquisition monitoring technology, and provides a musical instrument and a method for playing music through plants.
The technical scheme adopted for solving the technical problems is as follows: the novel plant musical instrument playing music is a cylindrical plant basin structure with a drain hole, an upper container of the plant basin is used for containing soil and planting plants, a lower part of the plant basin is used for containing an electronic module, an upper part and a lower part of the plant basin are separated by a partition plate to prevent the electronic module from being damaged, and a cylindrical hollow drain hole structure is arranged in the center of the lower part of the plant basin to drain excessive water in soil. The lower part of the plant basin mainly comprises a plant electric signal sensor (detection module), a singlechip (control chip), a battery pack (power supply module) and a sound generating device (audio playing module). The detection module is used as a plant electric signal sensor and consists of a series of capacitors, resistors, inductors, diodes and leads, and in order to reduce the volume for convenient arrangement, the plant electric signal sensor adopts a small independent standard Printed Circuit Board (PCB); after two leads of the plant electric signal sensor are respectively grounded and connected to the root of a plant (or inserted into soil near the plant), a series of alternating currents in a certain frequency range are added into a circuit by the plant electric signal sensor, when a person touches different parts of the plant, the alternating current amplitude on each frequency changes, the sweep frequency capacitive touch sensing technology (SFCS) is used for collecting electric signal change data caused by the fact that the person touches different parts of the plant, and the data are transmitted to the singlechip after being filtered. The control chip can select UNO R3 with wide application of Arduino series as a controller.
In order to achieve that plants touching different positions generate different electrical signals (alternating current amplitudes change), preferably the detection module comprises:
one end of the first resistor is connected with the signal output end of the control chip;
the second resistor is connected with the other end of the first resistor and then grounded;
the inductor is connected with the other end of the first resistor;
one end of the first capacitor is connected with the other end of the inductor, and the other end of the first capacitor is used as a detection end to be connected with a plant;
one end of the switching diode is connected with the other end of the inductor, and the other end of the switching diode is connected with the input end of the control chip;
and the RC circuit is composed of a third resistor and a second capacitor and is connected with the other end of the switching diode.
In order to facilitate the connection of the detection module to the plant, preferably, the detection end of the first capacitor adopts an electrode plate. The connection can be completed by inserting the electrode sheet into the soil where the plants are located.
In order to reduce the volume of the instrument and to facilitate the use, it is preferable that the power module is composed of a plurality of dry batteries. The dry battery has small volume and convenient replacement. The cover of the power module is positioned on the wall of the plant basin, so that the battery can be conveniently replaced.
The audio playing module is an output device of music, is quite cheap and convenient, and can control the frequency of sound through Arduino coding to generate different tones. Preferably, the audio playing module adopts a buzzer. At this time, the audio playing module plays a single sound, i.e. sounds of an audio are emitted by touching a position, so that the audio playing module can be used as a musical instrument. The audio playing module can be selected according to the application range, and if the audio playing module is used for performing music enlightenment on children, different songs can be played according to the change of the electric signals, namely, different songs can be played by touching different positions of the plants. The audio player is positioned on the wall of the plant pot, and the surface of the audio player is provided with a waterproof layer to isolate the damage of water vapor to the module caused by watering and the like.
Preferably, the plant basin is internally divided into an upper layer and a lower layer through a partition board, and the detection module, the control chip, the audio playing module and the power module are all arranged in the lower layer space. The plant basin containing the electronic module is integrated with the plant, and the whole musical instrument is not provided with a wire when seen from the outside, so that people can not feel cold in science and technology, and extremely high emotion experience is realized instead.
Meanwhile, in order to facilitate the completion of the drainage of the upper layer, preferably, the middle part of the partition plate is provided with a drainage outlet, and the drainage outlet is connected with a drainage pipe penetrating through the space of the lower layer of the plant basin.
The invention also provides a control method of the musical instrument played by plants, which comprises the following steps:
(1) Initializing a variable;
(2) The control chip outputs an electric signal to the detection module;
(3) Defining the part of the person touching the plant for the first time as a standard position, and controlling an audio playing module to emit standard sound by using an audio control signal generated at the moment;
(4) And when a person touches other positions of the plant, the detection module detects the position deviation between the current touch position and the standard position, and the control chip generates an audio control signal according to the position deviation to control the audio playing module to send out the current volume of the deviation standard sound.
The control method of the invention determines the standard position and standard sound through first touching, and then determines the deviation condition of pronunciation through touching the deviation amount. The standard sound is emitted when the plant is touched for the first time, and then the offset of the pitch and the standard sound is determined according to the offset of the plant part touched by the human, so that the defect that the human is lost in the pitch direction because the plant is not provided with a key is overcome.
The control chip analyzes a series of data monitored by the detection module, and traverses alternating current on all frequencies to find out current frequency corresponding to the maximum amplitude as a characteristic value so as to judge different parts touched by a person; the current frequency corresponding to the maximum amplitude when the person touches the plant for the first time is taken as the current frequency corresponding to the standard sound, and then the deviation of the position where the person touches the plant again and the position touched for the first time in the physical position is converted into the deviation of the current frequency corresponding to the maximum amplitude, so that the deviation appears that the sound frequency deviates from the standard sound. The detection module controls the sounding device to sound with a certain pitch at the moment of touch of a person, and the pitch corresponds to the touch part, so that the musical instrument is played.
In order to improve the stability of the identification of the touch behavior of the person, it is preferable that the condition defining the new touch behavior is only provided when the offset between the current frequencies corresponding to the maximum amplitude detected twice exceeds a set threshold value, which reduces the influence of current fluctuation due to system instability; on the other hand, in detecting the current frequency corresponding to the maximum amplitude, the final detection result is an average value measured a plurality of times in a short time, which is so short that the human body cannot complete the touch operation twice.
In order to improve the accuracy and precision of the measuring module, preferably, the detecting module adopts a sweep frequency capacitive touch sensing technology to collect the electric signal changes caused by touching different positions of the plant by a person. The invention applies the sweep frequency capacitance sensing technology to plants, not only can identify that a person touches the plants, but also can correspond the touched position of the person to the pitch.
The sound of the musical instrument generally has a gradual change, and preferably, in the step (4), the offset of the current volume relative to the standard sound is positively correlated with the position offset.
In order to enhance the practicability of the present invention, it is preferable that the frequency of the standard sound is 440Hz.
Compared with the prior art, the invention has the advantages that: firstly, in the prior art, a plant is only used as an audio switch, and a timer in a controller is used for monitoring the charge and discharge time of a circuit and comparing the charge and discharge time with a preset value to judge whether a user touches the plant; secondly, the circuit of the invention determines that the controller frequency is fixed by hardware, and the scanning frequency of the controller of the invention is set by a program; moreover, unlike the audio set by touching the plant in the invention, the invention selects the corresponding audio to play after judging the part of the plant touched by the person.
The invention has the beneficial effects that:
the invention provides a device and a method for playing music by using plants, which realize brand-new human-computer interaction experience of creating music by touching the plants, and sound with different frequencies can be generated by touching different parts of the plants, so that a new gate is opened for an artist to explore a new music form and create.
Drawings
Fig. 1 is a schematic view of the structure of the musical instrument of the present invention.
Fig. 2 is a schematic diagram of a control circuit of the musical instrument of the present invention.
Fig. 3 is a schematic diagram of the operation of the musical instrument of the present invention.
Fig. 4 is a flowchart of a plant music control method of the present invention.
In the figure:
1: plants, 2: soil, 3: plant pot drain pipe, 4: baffle, 5: wire, 6: battery pack, 7: electrode sheet, 8: an electrical signal sensor, 9: wire, 10: buzzer and its surface waterproof layer, 11: wire, 12: arduino Uno singlechip, 13 wires.
Detailed Description
As shown in fig. 1, the plant-played musical instrument of the present embodiment includes: the device comprises a lead 5, a battery pack 6, an electrode plate 7, a plant electric signal sensor 8 (detection module), a lead 9, a buzzer, a surface waterproof layer 10, a lead 11, an Arduino Uno singlechip 12 and a lead 13. The musical instrument is a cylindrical plant pot structure, an upper container of the plant pot is used for containing soil and planting plants, a lower part of the plant pot is used for containing an electronic module, an upper part and a lower part of the plant pot are separated by a partition plate 4 to avoid the electronic module from being damaged, and a plant pot drain pipe 3 is a cylindrical hollow structure positioned in the center of the lower part. The battery pack 6 is composed of a plurality of batteries and a cover, the cover can be opened from the outside to put into the batteries, the battery pack 6 and the Arduino Uno single-chip microcomputer 12 are connected through the lead 5, the lead 13 connected with the Arduino Uno single-chip microcomputer 12 is connected with the ground, the Arduino Uno single-chip microcomputer 12 is connected with the plant electric signal sensor 8 above the Arduino Uno single-chip microcomputer through the lead 10, the plant electric signal sensor 8 is connected with the soil 2 planted with the plant 1 through the electrode plate 7, the buzzer is connected with the Arduino Uno single-chip microcomputer 12 through the lead 11 and is positioned on the plant basin wall, and the surface waterproof layer isolates the Arduino Uno single-chip microcomputer from the outside air and water vapor.
As shown in fig. 2, in the schematic circuit diagram of the musical instrument of this embodiment, the Arduino u single-chip microcomputer 12 selects Uno R3 with a relatively wide application range of Arduino series as a controller, the b end of the buzzer 10 is connected to the Digital 8 port of the single-chip microcomputer 12 of the Arduino u single-chip microcomputer 12, and the a end of the buzzer 10 is grounded. The Digital 9 port of the Arduino u no single-chip microcomputer 12 is connected as a pulse signal generator to the a end of the resistor R1, the b end of the resistor R1 is connected to the GROUND through the resistor R2 (note: here, the GROUND includes the GROUND end of the power jack, the GND end of the Arduino u no single-chip microcomputer 12, and the GROUND end of the detected plant, the above GROUND ends should also be connected together), and the resistor R1 and the resistor R2 provide a voltage dividing function so that the signal after is at a proper amplitude. The b end of R1 is connected to the a end of the capacitor C2 through the inductor L1, and the b end of the capacitor C2 is the PLANT detection end (PLANT). The LC circuit has a filter characteristic. The b end of the inductor L1 is provided with a small high-speed switching diode D1, the b end of the D1 is connected to an RC circuit consisting of a capacitor C1 and a resistor R3, the resistor R3 is equivalent to a load, and the capacitor C1 connected in parallel with the load is used for filtering high-frequency clutter to obtain a better waveform. The b end of the capacitor C2 is connected with an electrode plate and is directly connected with GROUND where people and plants are located. The b end of the D1 is also connected to an analog input end A0 of the Arduino Uno singlechip 12, and the analog input end A0 transmits the acquired signal to the Arduino Uno singlechip 12 for processing.
As shown in fig. 3, the musical instrument of the present embodiment operates on the following principle: the battery pack 6 is used as a power supply to supply power to the whole system, an Arduino Uno singlechip 12 is used for controlling and generating alternating current with a certain frequency range, the alternating current is connected with a ground and plant electric signal sensor 8, and the plant electric signal sensor 8 is connected with plants through an electrode plate 7. After a person touches the plant, the person and the plant are conductive, so that a capacitor is formed between the person and the plant, and the frequency and the amplitude of the original electric signal are changed. The human touching different parts of the plant will have different electrical properties, will cause the current to change in amplitude at different frequencies, these data are collected by the plant electrical signal sensor 8 and then enter the Arduino Uno singlechip 12 for processing, and finally the Arduino Uno singlechip 12 will control the buzzer 10 to emit sounds at different frequencies according to the touched parts.
As shown in fig. 4, the procedure of the musical instrument of the present embodiment for plant playing includes the following steps:
(1) Initializing variables, wherein the Arduino Uno singlechip 12 generates a series of alternating currents at a basic frequency (Hz) in a circuit connected with plants through control instructions, detects the amplitudes (V) of the alternating currents at all frequencies in the frequency range, and then traverses to find out the frequency x corresponding to the maximum alternating current amplitude;
(2) Judging whether this is the first detection: if not, the step (3) is carried out, and if yes, the step (8) is carried out;
(3) Determining whether the deviation between the frequency x corresponding to the maximum alternating current amplitude detected this time and the value z detected last time exceeds a threshold value (100 Hz, modifiable by human settings): if yes, entering a step (4), otherwise entering a step (8);
(4) Judging whether a new touch action is defined in the last detection or not: if not, the step (6) is carried out, and if yes, the step (8) is carried out;
(5) Defining a new touch action;
(6) After defining a new touch action, judging whether a current frequency variable y corresponding to a standard sound (the international standard height is a sound a vibrating 440 times per second, namely, a group of small words is used as a standard sound, and the standard sound can be set according to the requirement) is assigned;
if not, assigning the frequency x corresponding to the current detected maximum current amplitude to the variable y, and determining the sound vibration frequency t as a standard sound;
if yes, comparing the current frequency variable y corresponding to the standard sound with the current frequency x corresponding to the maximum alternating current amplitude detected currently, so as to determine the sound vibration frequency t; the farther x is offset by y, the further t is offset by the standard tone frequency 440 Hz;
(7) A command is given to the buzzer to sound at a frequency t.
(8) And (3) judging whether a new touch action is not defined for a long time, if so, ending the program, and if not, continuing to execute the program after jumping back to the variable initialization in the step (1).
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. A plant-played musical instrument, comprising:
a plant pot in which plants interacting with a person are planted;
the detection module is connected with the plant insulated from the ground and used for detecting the change of the electric signals generated when the human touches different positions of the plant;
the control chip is used for outputting an electric signal to the detection module and generating different audio control signals according to the change of the electric signal;
the audio playing module is used for receiving audio control signals output by the control chip due to the fact that a person touches different positions of the plants and outputting sounds with different frequencies;
the power module is used for providing working voltage for the control chip and the audio playing module;
the detection module comprises: one end of the first resistor is connected with the signal output end of the control chip; the second resistor is connected with the other end of the first resistor and then grounded; the inductor is connected with the other end of the first resistor; one end of the first capacitor is connected with the other end of the inductor, and the other end of the first capacitor is used as a detection end to be connected with a plant; one end of the switching diode is connected with the other end of the inductor, and the other end of the switching diode is connected with the input end of the control chip; the RC circuit consists of a third resistor and a second capacitor and is connected with the other end of the switching diode;
the control method of the musical instrument comprises the following steps:
(1) Initializing a variable;
(2) The control chip outputs an electric signal to the detection module; the detection module adopts a sweep frequency capacitive touch sensing technology to collect electric signal changes caused by touching different positions of the plant by a person;
(3) Defining the part of the person touching the plant for the first time as a standard position, and controlling an audio playing module to emit standard sound by using an audio control signal generated at the moment;
(4) When a person touches other positions of the plant, the detection module detects the position deviation between the current touch position and the standard position, and the control chip generates an audio control signal according to the position deviation to control the audio playing module to send out the current volume of the deviation standard sound;
the offset of the current volume relative to the standard sound is positively correlated with the position offset, and the frequency of the standard sound is 440Hz.
2. The plant-based musical instrument of claim 1 wherein the sensing end of the first capacitor is an electrode pad.
3. A plant-based musical instrument as claimed in claim 1, wherein said power module is comprised of a plurality of dry batteries.
4. The plant-on musical instrument of claim 1 wherein the audio playing module employs a buzzer.
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| CN107564540A (en) * | 2017-07-05 | 2018-01-09 | 珠海市维想科技有限公司 | A kind of Multifunctional piano identifies teaching auxiliary system |
| CN108182927A (en) * | 2017-12-29 | 2018-06-19 | 深圳市翠园科技有限公司 | System and its implementation with the remote interaction of plant is realized based on mobile terminal |
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