TWI823349B - Interactive music tag system and processing method for audio thereof - Google Patents

Abstract

An interactive music tag system and a processing method for audio thereof are provided in the present invention. The interactive music tag system includes two transmission channels. One is magnetic channel for identifying the ID and controlling the music tag, the other is light transmission channel for transmitting analog audio signal to the interactive tag reader. The present invention achieves full duplex by separating the audio channel from the magnetic channel.

Description

Interactive music labeling system and sound processing method of interactive music labeling system

The present invention relates to a radio frequency application technology. Furthermore, the present invention relates to an interactive music tag system and a sound processing method of the interactive music tag system.

Figure 1 shows a circuit diagram of a prior art radio frequency identification tag circuit. Please refer to Figure 1. The coil Lr induces an external magnetic field, generates oscillation, and provides power to the microprocessor 100 through bridge rectification. The microprocessor 100 loads a signal through the output port Dout to the resonant circuit of the coil Lr and the capacitor Cr. Through mutual inductance, Return data to the reader.

As costs decrease, more and more Radio Frequency Identification (RFID) technology is being used in the consumer and toy fields. Considering the cost of the reader and mass production, 125KHz radio frequency identification technology is more common in the toy field. From the perspective of digital wireless transmission, in order to transmit voice data, it must be capable of multi-tag (Multi-Tag) operation. Basically, the data rate (Data Rate) must be fast to handle problems such as transmission errors, data loss, and communication collisions.

Based on the EM4100/4200 compatible specifications, the data rate (Data Rate) is approximately 125KHz/16 = 7.8125Kbps. Because the carrier frequency is low, the data rate is not easy to increase. Using this speed to transmit audio data (Audio Data) is slightly insufficient. At the same time, when there are multiple radio frequency identification tags (Tag), communication collision (Collision) problem must be dealt with, which will further reduce the effective data rate.

The Republic of China Patent No. M542893, filed by the same inventor in this case, discloses a wireless music tag technology. In this patent, the tag uses only analog sound waves to transmit sound to the receiving end in a one-way manner, thereby solving the above-mentioned problem of insufficient speed, and can transmit multiple sounds at the same time for mixing. However, analog sounds are transmitted continuously and uninterrupted, resulting in users being unable to control the sounds transmitted by the above-mentioned music tags.

Similarly, in patent proposal 108107753 "Interactive music tag system and music tag interaction method", the applicant proposed an interactive music tag that can transmit analog sounds. This technology uses magnetic fields as channels to transmit sound and control commands. Since sound and control commands use the magnetic field channel at the same time, they cannot be executed in parallel at the same time, so time-sharing multiplexing technology must be used. When further expanding the application, for example, multiple music tags exist at the same time, and there are also collision problems, which increases the communication time and causes the sound transmission time to be further reduced.

An object of the present invention is to provide an interactive music tag system and a sound processing method for the interactive music tag system. By adding an optical transmission channel to the music tag, the analog sound is transmitted to the music tag reading end through the photoelectric effect.

Another object of the present invention is to provide an interactive music tag system and a sound processing method of the interactive music tag system, by loading a synchronization signal in wireless energy, so that the interactive music tags configured on the interactive music tag reading device can self-synchronize. Solve the frequency drift of the music output by the interactive music tag.

Another object of the present invention is to provide an interactive music tag system and a sound processing method of the interactive music tag system, which divides the interactive music tags into multiple groups, so that interactive music tags of the same track can be played at the same time, and interactive music tags of different tracks can be played at the same time. The tag stops playing.

Another object of the present invention is to provide an interactive music tag system and a sound processing method of the interactive music tag system, detect the number of interactive music tags, and add volume adjustment information to the synchronization signal loaded in the wireless energy accordingly, thereby , allowing interactive music tags that receive volume adjustment information to adjust the volume on the source side to avoid sound distortion.

Another object of the present invention is to provide an interactive music tag system and a sound processing method of the interactive music tag system, which detect the size of the optical signal output by the interactive music tag configured on the interactive music tag reading device, and use it to wirelessly The synchronization signal loaded in the energy is internally added with volume adjustment information, so that the interactive music tag that receives the volume adjustment information can adjust the volume at the source side, and avoid sound distortion through the above-mentioned feedback mechanism.

The invention proposes an interactive music tag system. The interactive music tag system includes an interactive music tag and an interactive music tag reading device. The interactive music tag includes an LC resonant circuit, a microprocessor and an optical output circuit. The LC resonant circuit includes a first terminal and a second terminal. The microprocessor is coupled to the first terminal and the second terminal of the LC resonant circuit. The optical output circuit is coupled to the microprocessor and used to output an analog optical signal. The interactive music tag reading device includes a coil, an optical receiving device and a control circuit. The coil provides wireless energy to the interactive music tag and reads the magnetic field signal transmitted by the interactive music tag. The optical receiving device receives analog optical signals and converts them into analog sound electrical signals. The control circuit is coupled to the coil and the optical receiving device to control the wireless energy sent by the coil.

When the interactive music tag approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor. The microprocessor controls the microprocessor according to the stored sound data. The device outputs an analog sound signal to the optical output circuit. The above-mentioned interactive music tag reading device loads a synchronization signal in wireless energy at each preset time. The microprocessor receives wireless energy from either the first end or the second end of the resonant circuit, decodes the synchronization signal, and adjusts each subsequent preset according to the sampling rate of the music being played and the time code of the synchronization signal. The rate of music output by time.

According to the interactive music tag system according to the preferred embodiment of the present invention, the optical output circuit is an infrared light emitting diode. According to the interactive music tag system according to the preferred embodiment of the present invention, the above-mentioned LC resonant circuit includes an inductor and a capacitor. The first end of the inductor is coupled to the first end of the LC resonant circuit, and the second end of the inductor is coupled to the second end of the LC resonant circuit. The first end of the capacitor is coupled to the first end of the LC resonant circuit, and the second end of the capacitor is coupled to the second end of the LC resonant circuit.

According to the interactive music labeling system according to the preferred embodiment of the present invention, the microprocessor further includes calculating a number of sampling points of the output music within each preset time. In another preferred embodiment, when the microprocessor receives the wireless energy from one of the first end or the second end of the resonant circuit, it decodes the synchronization signal, and the number of sampling points sent is less than each A standard number of sampling points should be sent at the preset time, then the number of sampling points sent is increased to speed up the music playback speed. When the microprocessor receives the wireless energy from one of the first end or the second end of the resonant circuit, it decodes the synchronization signal, and the number of sampling points sent is greater than a standard sample that should be sent at each preset time. points, reduce the number of sampling points sent to slow down the music playback speed.

The present invention also provides an interactive music tag system. The interactive music tag system includes a plurality of interactive music tags and an interactive music tag reading device. Each interactive music tag includes an LC resonant circuit, a microprocessor and an optical output circuit. The LC resonant circuit includes a first terminal and a second terminal. The microprocessor is coupled to the first terminal and the second terminal of the LC resonant circuit. The optical output circuit is coupled to the microprocessor and used to output an analog optical signal. The interactive music tag reading device includes a coil, an optical receiving device and a control circuit. The coil provides wireless energy to the interactive music tag and reads the magnetic field signal transmitted by the interactive music tag. The optical receiving device receives the analog optical signal and converts it into an analog sound electrical signal. The control circuit is coupled to the coil and the optical receiving device to control the wireless energy sent by the coil.

When one of the interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor. The microprocessor activates the microprocessor according to the stored sound data. , the microprocessor outputs an analog sound signal to the optical output circuit, wherein the interactive music tags are at least divided into a first group and a second group. The interactive music tag reading device loads a synchronization signal in the wireless energy at each preset time, where the synchronization signal includes a currently playing group information. When the microprocessor in the interactive music tag receives wireless energy from one of the first end or the second end of the LC resonant circuit, it decodes the synchronization signal to obtain the currently playing group information. When the currently playing group information corresponds to the first group, the interactive music tag of the second group is prohibited from outputting analog optical signals.

According to the interactive music tag system according to the preferred embodiment of the present invention, when a specific interactive music tag of the first group is placed on the interactive music tag reading device, the microprocessor of the specific interactive music tag is controlled by the third part of the LC resonant circuit. One of the first end or the second end receives the wireless energy, decodes the synchronization signal, and confirms that the currently playing group information output by the interactive music tag reading device is the same as the group information of the specific interactive music tag. The specific interactive music tag is synchronized according to The time code of the signal determines the start broadcast time of the corresponding output analog sound signal.

The present invention also provides an interactive music tag system. The interactive music tag system includes a plurality of interactive music tags and an interactive music tag reading device. Each interactive music tag includes an LC resonant circuit, a microprocessor and an optical output circuit. The LC resonant circuit includes a first terminal and a second terminal. The microprocessor is coupled to the first terminal and the second terminal of the LC resonant circuit. The optical output circuit is coupled to the microprocessor and used to output an analog optical signal. The interactive music tag reading device includes a coil, an optical receiving device and a control circuit. The coil provides wireless energy to the interactive music tag and reads the magnetic field signal transmitted by the interactive music tag. The optical receiving device receives the analog optical signal and converts it into an analog sound electrical signal. The control circuit is coupled to the coil and the optical receiving device to control the wireless energy sent by the coil.

When one of the above-mentioned interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor. The microprocessor, according to the stored sound data, The microprocessor outputs an analog sound signal to the optical output circuit. The above-mentioned interactive music tag reading device loads a volume control information in the wireless energy according to the number of interactive music tags. The microprocessor of the interactive music tag configured in the interactive music tag reading device receives wireless energy from one of the first end or the second end of the resonant circuit, decodes the volume control information, and is configured to read the interactive music tag. The microprocessor of the device's interactive music tag determines the intensity of the analog optical signal based on the volume control information.

According to the interactive music tag system according to the preferred embodiment of the present invention, the above-mentioned optical receiving device includes a plurality of photoelectric signal converters, and each of the photoelectric signal converters includes a photodiode and an optical signal amplification circuit. The signal amplifying circuit includes an input terminal and an output terminal, wherein the input terminal of the optical signal amplifying circuit is coupled to the photodiode. In a preferred embodiment, the number of interactive music tags is determined by the signal size at the output end of the optical signal amplification circuit of each photoelectric signal converter to determine whether there are interactive music tags configured and operating, and based on the number of interactive music tags that are operating The number determines the number of interactive music tags.

The present invention also provides an interactive music tag system. The interactive music tag system includes a plurality of interactive music tags and an interactive music tag reading device. Each interactive music tag includes an LC resonant circuit, a microprocessor and an optical output circuit. The LC resonant circuit includes a first terminal and a second terminal. The microprocessor is coupled to the first terminal and the second terminal of the LC resonant circuit. The optical output circuit is coupled to the microprocessor and used to output an analog optical signal. The interactive music tag reading device includes a coil, a plurality of photoelectric signal converters and a control circuit. The coil provides wireless energy to the interactive music tag and reads the magnetic field signal transmitted by the interactive music tag. The photoelectric signal converter receives the analog optical signal and converts it into an analog sound electrical signal. The control circuit is coupled to the coil and the optical receiving device to control the wireless energy sent by the coil.

When one of the above-mentioned interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor. The microprocessor, according to the stored sound data, The microprocessor outputs an analog sound signal to the optical output circuit. The interactive music tag reading device determines whether the analog sound electrical signal is saturated based on the signal size at the output end of each of the photoelectric signal converters, so as to load a volume control information in the wireless energy, wherein the interactive music tag is configured with The microprocessor that reads the interactive music tag of the device receives the wireless energy from one of the first end or the second end of the LC resonant circuit and decodes the volume control information, wherein the microprocessor is configured to read the interactive music tag. The microprocessor obtains the interactive music tag of the device and determines the intensity of the analog optical signal based on the volume control information.

The present invention also proposes a sound processing method of an interactive music tag system, which is suitable for at least one interactive music tag and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: when the interactive music tag approaches the interactive music tag, the sound processing method of the interactive music tag system includes: When the tag reads the device: output a wireless energy to the interactive music tag to activate the interactive music tag; and when playing audio: based on the stored sound data, the interactive music tag outputs an analog optical signal to the interactive The optical receiving device of the music tag reading device converts the analog optical signal into an analog sound electrical signal; at each preset time, a synchronization signal is loaded on the wireless energy; and when the LC resonance of the interactive music tag The circuit receives the wireless energy: decodes the wireless energy and decodes the synchronization signal; adjusts the music output at each subsequent preset time according to the sampling rate of the music being played and the time code of the synchronization signal. rate.

The present invention also proposes a sound processing method of an interactive music tag system, which is suitable for multiple interactive music tags and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: dividing the above multiple interactive music tags into at least It is a first group and a second group; when at least one interactive music tag among the plurality of interactive music tags is close to the interactive music tag reading device: output a wireless energy to the interactive music tag to activate the interactive music tag; the interactive music tag configured in the interactive music tag reading device returns group information through the LC resonant circuit; and at each preset time, the interactive music tag reading device loads a synchronization signal in the wireless energy, wherein , the synchronization signal includes a currently playing group information; when the above-mentioned interactive music tag receives wireless energy: decode the synchronization signal to obtain the currently playing group information; when the currently playing group information corresponds to the first group Group, the second group of interactive music labels are prohibited from outputting analog optical signals.

The present invention also proposes a sound processing method of an interactive music tag system, which is suitable for multiple interactive music tags and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: when among the above-mentioned multiple interactive music tags, When at least one interactive music tag approaches the interactive music tag reading device: output a wireless energy to the interactive music tag to activate the interactive music tag; and output an analog optical signal from the interactive music tag according to the stored sound data; according to A number of interactive music tags. The interactive music tag reading device loads a volume control information in the wireless energy; the interactive music tag configured in the interactive music tag reading device receives the wireless energy and decodes the volume control information. ; The interactive music tag configured in the interactive music tag reading device determines the intensity of the analog optical signal based on the volume control information.

The present invention also proposes a sound processing method of an interactive music tag system, which is suitable for multiple interactive music tags and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: when among the above-mentioned multiple interactive music tags, When at least one interactive music tag approaches the interactive music tag reading device: output a wireless energy to the interactive music tag to activate the interactive music tag; and output an analog optical signal from the interactive music tag based on the stored sound data; the The interactive music tag reading device reads each of the analog optical signals and converts it into an analog sound electrical signal; based on the signal strength of each of the analog optical signals, it determines whether the analog sound electrical signal is saturated, so as to use the wireless energy in the wireless energy. Loading a volume control information; when the interactive music tag configured in the interactive music tag reading device receives the wireless energy, including: decoding the volume control information; the interactive music tag configured in the interactive music tag reading device Based on the volume control information, the intensity of the analog optical signal is determined.

The spirit of this invention is to add an optical channel transmission mechanism to the tag. The analog sound signal is transmitted through the optical channel, and the tag recognition and control signal part is transmitted through the magnetic field channel, so the reading end can give music Tag instructions, music tags can be decoded to obtain instructions to be reflected on the output analog music signal.

In order to make the above and other objects, features and advantages of the present invention more clearly understood, preferred embodiments are described in detail below along with the accompanying drawings.

First embodiment

Figure 2 is a schematic circuit diagram of an interactive music tag system according to a preferred embodiment of the present invention. Please refer to Figure 2. The interactive music tag system includes an interactive music tag 20 and an interactive music tag reading device 21. The interactive music tag reading device 21 includes a coil 211 , an optical receiving device 212 and a control circuit 213 . The interactive music tag 20 has two signal transmission channels, namely the resonant coil 201 for transmitting magnetic field signals and the optical output circuit 202 for transmitting analog sound signals. Among them, the preferred implementation of the optical output circuit 202 is Implemented with infrared light-emitting diodes (IR LEDs).

In this preferred embodiment, considering that infrared rays are invisible and will not interfere with ordinary users, infrared light-emitting diode technology is used in this embodiment. However, those with ordinary skill in the art should know that ordinary light-emitting diodes can also be used as embodiments of the present invention. Therefore, the present invention is not limited to this. Likewise, in this embodiment, the optical receiving device 212 is preferably implemented as an infrared photodiode receiver (IR Photo-Diode). However, those with ordinary skill in the art should know that ordinary photodiode receivers can also be used as embodiments of the present invention. Therefore, the present invention is not limited to this.

Figure 3 is a schematic circuit diagram of the interactive music tag 20 of the interactive music tag system according to a preferred embodiment of the present invention. Please refer to Figure 3. The interactive music tag 20 includes an LC resonant circuit 300, a microprocessor 301 and an optical output circuit 202. The LC resonant circuit 300 is composed of a resonant coil 201 and a resonant capacitor 302. The microprocessor 301 is coupled to two ends of the LC resonant circuit 300 for receiving energy from the LC resonant circuit 300 . The optical output circuit 202 is coupled to the microprocessor 301 .

Please refer to Figures 2 and 3. The coil 211 is used to provide wireless energy to the interactive music tag 20. When the interactive music tag 20 approaches the interactive music tag reading device 21, the LC resonant circuit 300 receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor 301. After the microprocessor 301 is activated, it begins to control the LC resonant circuit 300 and sends the tag's identification code (RFID) through the magnetic field signal. After the interactive music tag reading device 21 receives the identification code (RFID) of the interactive music tag 20, it can start to insert a control signal into the wireless energy output by the coil 211 to request the interactive music tag 20 through the user's operation. Output music.

When the microprocessor 301 of the interactive music tag 20 decodes the control signal instructions through the wireless energy received by the LC resonant circuit 300, the microprocessor 301 uses the music output port of the microprocessor 301 ( AUDN) outputs an analog sound signal to the optical output circuit (this embodiment is an infrared light-emitting diode) 202. The optical output circuit 202 determines the intensity of the analog optical signal according to the size of the analog sound signal, and the optical output circuit 202 determines the intensity of the analog optical signal according to the analog sound signal. The frequency of the sound signal determines the frequency of the analog optical signal.

At this time, the interactive music tag reading device 21 receives the analog optical signal from the optical receiving device (in this embodiment, an infrared photodiode receiver) 212, and converts the analog optical signal into an analog sound electrical signal through the photoelectric effect. . After being amplified by the amplifier, the control circuit 213 plays the amplified analog sound signal through the sound playing device 214 .

The control signal output by the interactive music tag reading device 21 can not only control the interactive music tag 20 to output analog music of analog optical signals, but also can control the output status of the analog optical signals of the interactive music tag 20, including play, stop, fast. Forward, rewind, pause, double speed playback, etc. Since the music playback control is all performed on the tag, the interactive music tag reading device 21 does not need to perform analog-to-digital conversion and temporary storage of the received analog music.

Although the above embodiment uses a single interactive music tag 20 as an example, those with ordinary knowledge in the technical field should know that this case can still be applied to examples of multiple interactive music tags 20 . Figure 4 is a schematic diagram of an interactive music tag system with multiple interactive music tags according to a preferred embodiment of the present invention. Please refer to Figure 4. In this embodiment, each interactive music tag 401-403 is represented by an infrared light-emitting diode, and the interactive music tag reading device 21 is an infrared photodiode receiver 404. express. The analog optical signals IR1 ~ IR3 output by the interactive music tags 401 ~ 403 can be directly overlapped (mixed) on the light. Therefore, in this embodiment, the interactive music tag reading device 21 only needs a set of amplifiers to combine the above three The analog optical signals IR1 ~ IR3 output by the interactive music tags 401 ~ 403 are converted into analog sound signals without additional mixing.

Generally, music is stored in a digital form in a storage device corresponding to the microprocessor 301 or in a storage device of the microprocessor 301 itself. The storage method is in a digital form. This digital audio usually has a specific sampling rate (sample rate). For example, the stored music has a sampling rate of 16KHz. The digital audio with a sampling rate of 16KHz will be converted into the above-mentioned analog sound signal through a digital-to-analog conversion method. For 16KHz music, 16,000 points must be output per second. However, integrated circuits often suffer from frequency drift, causing the output to exceed 16,000 points per second or to output less than 16,000 points per second. This frequency drift does not cause a big problem when there is only one interactive music tag playing music. However, suppose that two interactive music tags are played at the same time. For example, take Beethoven's Fifth Violin Sonata "Spring" as an example. One of the interactive music tags stores the piano part of Beethoven's Fifth Violin Sonata "Spring". For example, another interactive music tag stores the violin part of Beethoven's Fifth Violin Sonata "Spring". As the playing time becomes longer, the frequency drifts, which will cause the human ear to hear the two musics being out of sync.

In this embodiment, at each preset time, the interactive music tag reading device 21 loads a synchronization signal into the wireless energy output by the coil. The microprocessor 300 of the interactive music tags 401 to 403 on the interactive music tag reading device 21 receives wireless energy from one of the first end or the second end of the LC resonant circuit 301, and decodes the synchronization signal. At this time, the microprocessor 300 will calculate the number of output sampling points from the last time the synchronization signal was received to the time when the synchronization signal is received this time. Here, in order to make it easier for those with ordinary knowledge in the technical field to understand, it is assumed that the interval time of the synchronization signal is 1 second. Therefore, under standard conditions, the number of sampling points should be output as 16,000 sampling points. If the microprocessor 300 only outputs 15920 points, -80 points will be recorded and the output must be increased to 16080 points before the next synchronization. In the same way, if the microprocessor 300 only outputs 16060 points, +60 points will be recorded, and the output must be reduced to 15940 points before the next synchronization. Through this statistical feedback mechanism, the speed of the music output at each subsequent preset time is adjusted. In this way, the problem of the human ear hearing two (or more) pieces of music being out of sync can be solved.

In addition, although in the above embodiments, the interactive music tags 401 to 403 only show an infrared light-emitting diode for representation, those with ordinary knowledge in the technical field should know after referring to the embodiments in Figures 2 and 3. , the circuits and operations of the interactive music tags 401 to 403 can be the same as or similar to those in Figure 2 and Figure 3, so the invention is not limited thereto.

Second embodiment

In another embodiment, the interactive music tags can be set to different groups. For example, each piece of music is used as a group, such as the piano part and violin part of Beethoven's Fifth Violin Sonata "Spring" mentioned above. , it could be configured as the same group, while another group might be Mozart Piano Sonata No. 16 in C major.

In order to briefly illustrate the spirit of the present invention, it is assumed that the music stored in the interactive music tag 401 is the piano part of Beethoven's fifth violin sonata "Spring", and the music stored in the interactive music tag 402 is Beethoven's fifth violin sonata "Spring" For the violin part, the music stored in the interactive music tag 403 is Mozart's Piano Sonata No. 16 in C major. In this embodiment, the interactive music tag 401 and the interactive music tag 402 are, for example, the first group, and the interactive music tag 403 is, for example, the second group. Assume that interactive music tags 401, 402, and 403 are all configured on the interactive music tag reading device 21, and the user operates the interactive music tag reading device 21 and decides to play Beethoven's Fifth Violin Sonata "Spring". At this time, the interactive The music tag reading device 21 adds a currently playing group information to the synchronization signal loaded in the wireless energy at each preset time, and the currently playing group information is the first group.

The microprocessor in each of the above interactive music tags 401, 402 and 403 receives wireless energy from one of the first end or the second end of the LC resonant circuit, decodes the synchronization signal, and obtains the current playing group information. Since the current playback group information corresponds to the first group, the interactive music tags 401 and 402 of the first group output analog optical signals, and the interactive music tag 403 of the second group prohibits output of analog optical signals.

Third embodiment

As another example, assume that the interactive music tags 401 and 403 are configured on the interactive music tag reading device 21 and the interactive music tag 402 is not configured on the interactive music tag reading device 21. The user also operates the interactive music tag reading device. Take the device 21 and decide to play Beethoven's Fifth Violin Sonata "Spring". At this time, the microprocessors in the interactive music tags 401 and 403 receive wireless energy from one of the first or second ends of the LC resonant circuit and decode it. When the synchronization signal is output, the interactive music tag 401 starts to output analog optical signals, while the interactive music tag 403 prohibits output of analog optical signals. Moreover, at this time, it is assumed that the interactive music tag 402 is configured by the user on the interactive music tag reading device 21 during the middle of the playback, and the connection between the interactive music tag 402 and the interactive music tag reading device 21 is completed, and in one minute The microprocessor of the 35-second interactive music tag 402 receives the wireless energy from the interactive music tag reading device 21 from one of the first end or the second end of the LC resonant circuit, decodes the synchronization signal, and confirms the reading of the interactive music tag. Taking the current playing group information output by the device 21 as the first group, the interactive music tag 402 determines based on the time code of the synchronization signal that the next synchronization signal received after one minute and thirty-five seconds will start to output the corresponding analog sound signal, and , the time of the next synchronization signal is used as the start broadcast time.

In the above embodiment, the music synchronization function, group allocation and group playback functions are described. The following embodiments focus on improving the volume. The hardware part still adopts the hardware of the embodiments shown in Figures 1 to 4 above.

Fourth embodiment

Since the optical receiving device 212 receives an analog optical signal, generally speaking, the optical receiving device 212 determines the size of the converted analog sound signal based on the light intensity (brightness) of the analog optical signal. However, too strong light may also cause saturation of the optical receiving device 212 . In other words, the light intensity that the optical receiving device 212 can receive is limited. If the interactive music tags 401, 402 and 403 placed on the top emit analog optical signals at the same time, and the intensities happen to be relatively strong, it will cause the optical receiving device 212 (infrared photodiode receiver 404) to receive signals that are saturated. It also indirectly leads to distortion of the converted analog sound electrical signal.

In this embodiment, the interactive music tag reading device 21 loads a volume control information in the wireless energy according to the number of interactive music tags in operation. For example, the three interactive music tags 401, 402 and 403 use the volume control information to control each interactive music tag to output one-third of the intensity of the analog optical signal. The microprocessors of the interactive music tags 401, 402 and 403 configured in the interactive music tag reading device 21 receive the wireless energy from one of the first end or the second end of the LC resonant circuit and decode the volume control information. The microprocessor reduces the intensity of the analog optical signal to one-third intensity based on the volume control information.

In the above embodiment, the number of interactive music tags is determined by the magnetic field signals output by the interactive music tags 401, 402 and 403. However, those with ordinary knowledge in the art should know that the number of interactive music tags does not necessarily need to be determined using the magnetic field signals output by the interactive music tags 401, 402 and 403. Another example is given below so that those with ordinary knowledge in the art can understand the spirit of the present invention.

Fifth embodiment

Figure 5 is a schematic diagram of an interactive music tag system with multiple interactive music tags according to a preferred embodiment of the present invention. Please refer to Figures 4 and 5. The difference between Figure 5 and Figure 4 is that the interactive music tag reading device 21 includes three photoelectric signal converters corresponding to three interactive music tags 401-403. Since the fifth The figure is only a schematic diagram, so only the infrared photodiode receivers 501 to 503 are shown. Therefore, in this embodiment, the analog optical signals IR1 to IR3 will be converted into three analog sound signals AUD1 to AUD3. Therefore, three amplifiers corresponding to the three infrared photodiode receivers 501 to 503 are required, and the mixing is performed on the circuit.

Figure 6 shows a complete circuit diagram of the photoelectric signal converter according to a preferred embodiment of the present invention. Please refer to Figure 6. In this embodiment, the photoelectric signal converter includes an infrared photodiode receiver 501 and an optical signal amplification circuit. The optical signal amplification circuit consists of a transistor Q1, resistors R1, R2, R3 and It is composed of isolation capacitor C1. The coupling relationship is shown in the figure. In the embodiment of FIG. 6 , only the optical signal amplification circuit corresponding to the infrared photodiode receiver 501 is shown. However, those with ordinary knowledge in the technical field should know that the infrared photodiode receivers 502 and 503 The corresponding optical signal amplification circuit can be the same as the optical signal amplification circuit corresponding to the infrared photodiode receiver 501, so no details will be given here.

Figure 7 shows a complete circuit diagram of the photoelectric signal converter according to a preferred embodiment of the present invention. Please refer to Figure 7. In this embodiment, the photoelectric signal converter includes an infrared photodiode receiver 501 and an optical signal amplification circuit. The optical signal amplification circuit consists of a transistor Q1, resistors R1, R2, R3, It is composed of R4 and isolation capacitors C1 and C2. The coupling relationship is shown in the figure. By the same token, in the embodiment of Figure 7, only the optical signal amplification circuit corresponding to the infrared photodiode receiver 501 is shown. However, those with ordinary knowledge in the technical field should know that the infrared photodiode receiver The optical signal amplifying circuit corresponding to the receivers 502 and 503 can be the same as the optical signal amplifying circuit corresponding to the infrared photodiode receiver 501, so no details will be given here.

In the above embodiments, the node ADC is marked on the circuit, and the above number of interactive music tags can be obtained by measuring whether the signal of the node ADC is present.

In addition, since the optical signals used in this case are all analog signals, the superposition of analog signals is much easier to process in the circuit than digital signals. You can share the same infrared photodiode receiver or photoelectric crystal as shown in Figure 4, superimpose it on the light end, and then perform photoelectric conversion. You can also use multiple infrared photodiode receivers or photoelectric transistors as shown in Figure 5 to perform photoelectric conversion first, and then superimpose the analog electrical signal. The superposition of analog electrical signals can be achieved by electrically connecting the node OUT of the optical signal amplifier circuit corresponding to the infrared photodiode receivers 501, 502, and 503 in Figure 6 or Figure 7 to ACIN.

Although the above embodiment uses the number of interactive music tags as a way to adjust the intensity of the analog light signal output by each interactive music tag, the above embodiment has multiple photoelectric signal converters, so the corresponding analog telecommunications signals can be measured separately. The strength of the number. For example, the interactive music tag reading device 21 can determine whether the analog sound electrical signal is saturated based on the signal size of the output end of each photoelectric signal converter, such as the ADC node or the OUT node, and load a volume with wireless energy. Control information as feedback. This volume control information can provide different volume control for each interactive music tag 401 to 403 respectively. The microprocessors of the interactive music tags 401 to 403 configured in the interactive music tag reading device 21 receive wireless energy from one of the first end or the second end of the LC resonant circuit, decode the volume control information, and decode the According to the volume control information, each interactive music tag 401 to 403 respectively determines the intensity of the analog optical signal. Through the above method, the sound volume of each channel can be adaptively controlled.

In the above embodiment, although each interactive music tag has a corresponding optical signal amplification circuit, theoretically, the volume can also be controlled at the subsequent stage (interactive music tag reading device 21). However, in fact, the volume is controlled by the subsequent stage. In addition to the increased cost, the quality is not as good as controlling the volume at the source. The reason is that if the received volume has already caused signal saturation, even after post-processing, the signal will still be distorted. Therefore, the preferred embodiment of the present invention can not only save costs, but also avoid signal distortion.

Sixth embodiment

Figure 8 illustrates a flow chart of the sound processing method of the interactive music tag system on the side of the interactive music tag reading device according to a preferred embodiment of the present invention. Please refer to Figure 8. The sound processing method of this interactive music tag system on the interactive music tag reading device includes the following steps:

Step S800: Start.

Step S801: Output wireless energy.

Step S802: Determine whether the interactive music tag is read. When the interactive music tag approaches the interactive music tag reading device, step S803 is performed.

Step S803: Start the interactive music tag.

Step S804: Determine to play audio. This step is for the interactive music tag reading device to determine whether there is a user operation.

Step S805: Load a play command into the wireless energy, and load a synchronization signal into the wireless energy at each preset time.

Figure 9 shows a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Please refer to Figure 9. The sound processing method of this interactive music labeling system includes the following steps on the interactive music labeling side:

Step S900: Start.

Step S901: Decode the wireless energy and connect the interactive music tag reading device.

Step S902: Determine whether the decoded instruction is a playback instruction or a synchronization instruction. If it is a playback instruction, proceed to step S903. If it is a synchronous command, proceed to step S904.

Step S903: According to the stored sound data, the interactive music tag outputs an analog optical signal. At this time, the stored sound data is played back, and the analog optical signal is sent to the optical receiving device of the interactive music tag reading device, so that the analog optical signal is converted into an analog sound electrical signal.

Step S904: Adjust the rate of the music output at each subsequent preset time according to the sampling rate of the played music and the time code of the synchronization signal. For example, if music with another tag is already playing, and it is played until a certain time, after this tag is placed, the music that has been played can be continued and played synchronously based on the synchronization signal.

The above embodiment is about the sound processing method of the interactive music tag system and is related to the method of music synchronization. The following embodiment is about the embodiment of group playback.

Seventh embodiment

Figure 10 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag reading device side according to a preferred embodiment of the present invention. Please refer to Figure 10. The sound processing method of this interactive music tag system on the interactive music tag reading device includes the following steps:

Step S1000: Start.

Step S1001: Divide multiple interactive music tags into at least a first group and a second group. The interactive music tag reading device stores information of at least two groups or even multiple groups.

Step S1002: Output wireless energy.

Step S1003: Determine whether the interactive music tag is read. When the interactive music tag approaches the interactive music tag reading device, step S1004 is performed.

Step S1004: Start the interactive music tag.

Step S1005: Determine to play audio. This step is for the interactive music tag reading device to determine whether there is a user operation.

Step S1006: Load a play command into the wireless energy, and load a synchronization signal into the wireless energy at each preset time. In this embodiment, both the synchronization signal and the playback command include a current playback group information.

Figure 11 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Please refer to Figure 11. The sound processing method of this interactive music labeling system includes the following steps on the interactive music labeling side:

Step S1100: Start.

Step S1101: Decode the wireless energy and connect the interactive music tag reading device.

Step S1102: Determine whether the decoded instruction is a playback instruction or a synchronization instruction. If it is a playback instruction, proceed to step S1103. If it is a synchronous command, proceed to step S1106.

Step S1103: Determine whether the group information in the play instruction corresponds to the group information in the tag. If the determination is yes, proceed to step S1104; if the determination is no, proceed to step S1105.

Step S1104: According to the stored sound data, the interactive music tag outputs an analog optical signal. At this time, the stored sound data is played back, and the analog optical signal is sent to the optical receiving device of the interactive music tag reading device, so that the analog optical signal is converted into an analog sound electrical signal.

Step S1105: The interactive music tag does not output analog optical signals. Since the group information and the group information of the interactive music tag do not correspond to each other, playback is not performed.

Step S1106: Determine whether the group information in the synchronization signal corresponds to the group information in the label. If the determination is yes, proceed to step S1107; if the determination is no, proceed to step S1105.

Step S1107: Adjust the rate of the music output at each subsequent preset time according to the sampling rate of the played music and the time code of the synchronization signal. In other words, if the group information corresponds to the group information of the interactive music tag, and music with other tags is already playing, and it is played until a specific time, after the tag is placed, the original music can be continued based on the synchronization signal. Already played music is played simultaneously.

The above embodiment is a sound processing method of the interactive music tag system related to the group playback method, and the following embodiment is an embodiment related to the volume control.

Eighth embodiment

Figure 12 illustrates a flow chart of the sound processing method of the interactive music tag system on the side of the interactive music tag reading device according to a preferred embodiment of the present invention. Please refer to Figure 12. The sound processing method of this interactive music tag system on the interactive music tag reading device includes the following steps:

Step S1200: Start.

Step S1201: Output a wireless energy.

Step S1202: Determine whether the interactive music tag is read. When the interactive music tag approaches the interactive music tag reading device, step S1203 is performed.

Step S1203: Start the interactive music tag.

Step S1204: Determine to play audio. This step is for the interactive music tag reading device to determine whether there is a user operation.

Step S1205: Load a volume control information into the wireless energy according to a number of interactive music tags. In step S1202, the interactive music tag reading device can use the magnetic field to know the number of interactive music tags, as described in the fourth embodiment. The interactive music tag reading device can also be configured with multiple photoelectric signal converters. As described in the fifth embodiment, the number of interactive music tags actually played is determined by the signals detected by the photoelectric signal converters.

Figure 13 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Please refer to Figure 13. The sound processing method of this interactive music labeling system includes the following steps on the interactive music labeling side:

Step S1300: Start.

Step S1301: Decode the wireless energy and connect the interactive music tag reading device.

Step S1302: Determine the decoded volume command.

Step S1303: Adjust the intensity of the output analog light signal according to the volume command.

The above embodiment is about the sound processing method of the interactive music tag system, which is about the volume control method using the number of interactive music tags. The following embodiment is about the embodiment about the adaptive volume control based on the signal strength.

Ninth embodiment

Figure 14 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag reading device side according to a preferred embodiment of the present invention. Please refer to Figure 14. The sound processing method of this interactive music tag system on the interactive music tag reading device includes the following steps:

Step S1400: Start.

Step S1401: Output a wireless energy.

Step S1402: Determine whether the interactive music tag is read. When the interactive music tag approaches the interactive music tag reading device, step S1203 is performed.

Step S1403: Start the interactive music tag.

Step S1404: Determine to play audio. This step is for the interactive music tag reading device to determine whether there is a user operation.

Step S1405: Determine whether the analog sound electrical signal is saturated according to the signal strength of each analog optical signal, so as to load a volume control information into the wireless energy. Taking the fifth embodiment as an example, the interactive music tag reading device can determine the volume of each tag through the output of the ADC node, thereby more accurately sending out volume control information.

Figure 15 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Please refer to Figure 15. The sound processing method of this interactive music labeling system includes the following steps on the interactive music labeling side:

Step S1500: Start.

Step S1501: Decode the wireless energy and connect the interactive music tag reading device.

Step S1502: Determine the decoded volume command.

Step S1503: Adjust the intensity of the output analog light signal according to the volume command.

To sum up, the spirit of the present invention is to add an optical channel transmission mechanism to the tag. The analog sound signal is transmitted through the optical channel, and the tag recognition and control signal part is transmitted through the magnetic field channel, so the reading The fetch end can give instructions to the music tag, and through decoding, the music tag can obtain instructions to reflect on the output analog music signal. Therefore, the operability of both the music tag reading device and the music tag can be achieved, and the interaction between the two is further enhanced.

The specific examples provided in the detailed description of the preferred embodiments are only used to conveniently illustrate the technical content of the present invention, and are not intended to limit the present invention to the above-mentioned embodiments in a narrow sense. Without exceeding the spirit of the present invention and the following patent application The various changes and implementations made within the scope of the invention all fall within the scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the appended patent application scope.

Lr: Coil 100: Microprocessor Dout: output port Cr: capacitance 20: Interactive Music Tags 21: Interactive music tag reading device 211: Coil 212: Optical receiving device 213: Control circuit 201: Resonant coil 202: Optical output circuit 300: LC resonant circuit 301: Microprocessor 302: Resonant capacitor AUDN: Music output port of microprocessor 301 215, OP1, OP2: Amplifier 214: Sound playback device 401～403: Interactive music tags 404, 501～503: Infrared photodiode receiver IR1～IR3: analog optical signal AUD1～AUD3: analog sound signal R1～R4: Resistor C1, C2: isolation capacitor Q1: Transistor ADC, OUT: node S800～S805: The process steps of the sound processing method (music synchronization) of the interactive music tag system in the interactive music tag reading device according to a preferred embodiment of the present invention S900～S904: The process steps of the sound processing method (music synchronization) of the interactive music tag system in the interactive music tag side according to a preferred embodiment of the present invention S1000～S1006: The process steps of the sound processing method (group playback) of the interactive music tag system in a preferred embodiment of the present invention on the interactive music tag reading device side S1100～S1107: The process steps of the sound processing method (group playback) of the interactive music tag system in the interactive music tag side according to a preferred embodiment of the present invention S1201～S1205: The process steps of the sound processing method (volume control) of the interactive music tag reading device of the interactive music tag system according to a preferred embodiment of the present invention. S1301 ~ S1303: The process steps of the sound processing method (volume control) of the interactive music tag system in the interactive music tag side of a preferred embodiment of the present invention S1401～S1405: The process steps of the sound processing method (volume control) of the interactive music tag system in the interactive music tag reading device according to a preferred embodiment of the present invention S1501～S1503: The process steps of the sound processing method (volume control) of the interactive music tag system in the interactive music tag side of a preferred embodiment of the present invention

Figure 1 shows a circuit diagram of a prior art radio frequency identification tag circuit. Figure 2 is a schematic circuit diagram of an interactive music tag system according to a preferred embodiment of the present invention. Figure 3 is a schematic circuit diagram of the interactive music tag 20 of the interactive music tag system according to a preferred embodiment of the present invention. Figure 4 is a schematic diagram of an interactive music tag system with multiple interactive music tags according to a preferred embodiment of the present invention. Figure 5 is a schematic diagram of an interactive music tag system with multiple interactive music tags according to a preferred embodiment of the present invention. Figure 6 shows a complete circuit diagram of the photoelectric signal converter according to a preferred embodiment of the present invention. Figure 7 shows a complete circuit diagram of the photoelectric signal converter according to a preferred embodiment of the present invention. Figure 8 illustrates a flow chart of the sound processing method of the interactive music tag system on the side of the interactive music tag reading device according to a preferred embodiment of the present invention. Figure 9 shows a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Figure 10 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag reading device side according to a preferred embodiment of the present invention. Figure 11 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Figure 12 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag reading device side according to a preferred embodiment of the present invention. Figure 13 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention. Figure 14 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag reading device side according to a preferred embodiment of the present invention. Figure 15 is a flow chart of the sound processing method of the interactive music tag system on the interactive music tag side according to a preferred embodiment of the present invention.

: 20: Interactive Music Tags 21: Interactive music tag reading device 211: Coil 212: Optical receiving device 213: Control circuit 201: Resonant coil 202: Optical output circuit 215: amplifier 214: Sound playback device

Claims (34)

An interactive music tag system, including: an interactive music tag, including: an LC resonant circuit including a first end and a second end; a microprocessor coupled to the first end and the second end of the LC resonant circuit ; and an optical output circuit coupled to the microprocessor for outputting an analog optical signal; and an interactive music tag reading device, including: a coil that provides wireless energy to the interactive music tag and reads the interaction The magnetic field signal transmitted by the music tag; an optical receiving device that receives the analog optical signal and converts it into an analog sound electrical signal; and a control circuit that couples the coil and the optical receiving device to control the signal sent by the coil. The wireless energy, wherein when the interactive music tag approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor, wherein the microprocessor The processor outputs an analog sound signal from the microprocessor to the optical output circuit based on the stored sound data, Wherein, the interactive music tag reading device loads a synchronization signal into the wireless energy at each preset time, and the microprocessor receives the wireless energy from one of the first end or the second end of the LC resonant circuit. , decode the synchronization signal, and adjust the rate of the music output at each subsequent preset time according to the sampling rate of the played music and the time code of the synchronization signal. The interactive music labeling system as described in claim 1, wherein the microprocessor further includes calculating a number of sampling points of the output music within each preset time. The interactive music tag system as described in claim 2, wherein when the microprocessor receives the wireless energy from one of the first end or the second end of the resonant circuit, it decodes the synchronization signal, and the sent If the number of sampling points is less than a standard number of sampling points that should be sent at each preset time, the number of sampling points sent is increased to speed up the music playback speed. The interactive music tag system as described in claim 2, wherein when the microprocessor receives the wireless energy from one of the first end or the second end of the resonant circuit, it decodes the synchronization signal, and the sent If the number of sampling points is greater than a standard number of sampling points that should be sent at each preset time, the number of sampling points sent is reduced to slow down the music playback speed. The interactive music tag system as described in claim 1, wherein the LC resonant circuit includes: an inductor including a first end and a second end, wherein the first end of the inductor is coupled to the LC resonant circuit a first end, a second end of the inductor coupled to the second end of the LC resonant circuit; and a capacitor including a first end and a second end, wherein the first end of the capacitor is coupled to the LC resonant circuit The first terminal of the circuit and the second terminal of the capacitor are coupled to the second terminal of the LC resonant circuit. The interactive music tag system as described in claim 1, wherein the optical receiving device includes an infrared photodiode. The interactive music tag system as described in claim 1, wherein the interactive music tag system further includes a second interactive music tag, and the second interactive music tag includes: a second LC resonant circuit including a first terminal and a second terminal; a second microprocessor coupled to the first terminal and the second terminal of the second LC resonant circuit; and a second optical output circuit coupled to the second microprocessor for outputting A second analog optical signal, wherein when the second interactive music tag approaches the interactive music tag reading device, the second LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the third two microprocessors. After that, the second microprocessor outputs a second analog sound signal to the second optical output circuit based on the stored sound data. The second optical output circuit is based on the second microprocessor. The size of the second analog sound signal determines the intensity of the second analog optical signal, and the second optical output circuit determines the frequency of the second analog optical signal according to the frequency of the second analog sound signal. The interactive music tag system as described in claim 7, wherein the interactive music tag reading device further includes: a second optical receiving device for receiving the second analog optical signal. The interactive music tag system as described in claim 7, wherein the microprocessor receives the wireless energy from one of the first end or the second end of the resonant circuit, decodes the synchronization signal, and generates the synchronization signal based on the synchronization signal. The time code of the signal determines the start time of the second analog sound signal. An interactive music tag system includes: a plurality of interactive music tags, each interactive music tag includes: an LC resonant circuit including a first end and a second end; a microprocessor coupled to the third end of the LC resonant circuit One end and a second end; and an optical output circuit coupled to the microprocessor for outputting an analog optical signal; and an interactive music tag reading device including: a coil to provide wireless energy to the interactive music tag , and read the magnetic field signal transmitted by the interactive music tag; an optical receiving device receives the analog optical signal and converts it into an analog sound electrical signal; and A control circuit, coupled to the coil and the optical receiving device, is used to control the wireless energy sent by the coil. When one of the interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives The wireless energy sent by the interactive music tag reading device activates the microprocessor, wherein the microprocessor outputs an analog sound signal to the optical output circuit based on the stored sound data, wherein , the interactive music tags are at least divided into a first group and a second group, wherein the interactive music tag reading device loads a synchronization signal in the wireless energy at each preset time, where, The synchronization signal includes a currently playing group information, wherein when the microprocessor in the interactive music tags receives the wireless energy from one of the first end or the second end of the LC resonant circuit, it decodes the synchronization signal to obtain the currently playing group information, wherein when the currently playing group information corresponds to the first group, the interactive music tag of the second group is prohibited from outputting analog optical signals. The interactive music tag system as described in claim 10, wherein the LC resonant circuit includes: An inductor includes a first end and a second end, wherein the first end of the inductor is coupled to the first end of the LC resonant circuit, and the second end of the inductor is coupled to the second end of the LC resonant circuit; and a capacitor, including a first end and a second end, wherein the first end of the capacitor is coupled to the first end of the LC resonant circuit, and the second end of the capacitor is coupled to the second end of the LC resonant circuit. . The interactive music tag system as described in claim 10, wherein the optical receiving device includes an infrared photodiode. The interactive music tag system as described in claim 10, wherein when a specific interactive music tag of the first group is placed on the interactive music tag reading device, the microprocessor of the specific interactive music tag is controlled by the One of the first end or the second end of the LC resonant circuit receives the wireless energy, decodes the synchronization signal, and confirms the currently playing group information output by the interactive music tag reading device and the group of the specific interactive music tag. The information is the same, and the specific interactive music tag determines the start broadcast time of the corresponding output analog sound signal based on the time code of the synchronization signal. An interactive music tag system includes: a plurality of interactive music tags, each interactive music tag includes: an LC resonant circuit including a first end and a second end; a microprocessor coupled to the third end of the LC resonant circuit One end and a second end; and an optical output circuit coupled to the microprocessor for outputting an analog optical signal; and an interactive music tag reading device including: a coil to provide wireless energy to the interactive music tag , and read the magnetic field signal transmitted by the interactive music tag; an optical receiving device receives the analog optical signal and converts it into an analog sound electrical signal; and a control circuit couples the coil and the optical receiving device to To control the wireless energy sent by the coil, when one of the interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the microprocessor, wherein the microprocessor outputs an analog sound signal to the optical output circuit based on the stored sound data, Wherein, the interactive music tag reading device loads a volume control information in the wireless energy according to a number of interactive music tags, wherein the microprocessor configured in the interactive music tag of the interactive music tag reading device is controlled by the One of the first end or the second end of the LC resonant circuit receives the wireless energy and decodes the volume control information, wherein the microprocessor configured in the interactive music tag of the interactive music tag reading device, according to the Volume control information determines the intensity of the analog optical signal. The interactive music tag system as described in claim 14, wherein the LC resonant circuit includes: an inductor including a first end and a second end, wherein the first end of the inductor is coupled to the LC resonant circuit a first end, a second end of the inductor coupled to the second end of the LC resonant circuit; and a capacitor including a first end and a second end, wherein the first end of the capacitor is coupled to the LC resonant circuit The first terminal of the circuit and the second terminal of the capacitor are coupled to the second terminal of the LC resonant circuit. The interactive music tag system as described in claim 14, wherein the optical receiving device includes an infrared photodiode. An interactive music tag system as described in claim 14, wherein the number of interactive music tags is determined by the magnetic field signal. The interactive music tag system as described in claim 14, wherein the optical receiving device includes: a plurality of photoelectric signal converters, each of the photoelectric signal converters includes: a photodiode; an optical signal amplification circuit , including an input terminal and an output terminal, wherein the input terminal of the optical signal amplifier circuit is coupled to the photodiode. Such as the interactive music tag system recorded in claim 17, wherein the number of interactive music tags is determined by the signal size at the output end of the optical signal amplifier circuit of each of the photoelectric signal converters, and whether there is an interactive music tag configured and operation, and determine the number of interactive music tags based on the number of interactive music tags that are in operation. An interactive music tagging system including: A plurality of interactive music tags, each interactive music tag includes: an LC resonant circuit including a first end and a second end; a microprocessor coupled to the first end and the second end of the LC resonant circuit; and An optical output circuit coupled to the microprocessor for outputting an analog optical signal; and an interactive music tag reading device, including: a coil that provides wireless energy to the interactive music tag and reads the interactive music tag The transmitted magnetic field signal; a plurality of photoelectric signal converters receive the above-mentioned analog optical signal and convert it into an analog sound electrical signal; and a control circuit is coupled to the coil and the optical receiving device to control the output signal sent by the coil. Among them, when one of the interactive music tags approaches the interactive music tag reading device, the LC resonant circuit receives the wireless energy sent by the interactive music tag reading device and activates the micro-controller of the interactive music tag. A processor, wherein the microprocessor of the interactive music tag outputs an analog sound signal to the optical output circuit based on the stored sound data, Among them, the interactive music tag reading device determines whether the analog sound electrical signal is saturated according to the signal size of the output end of each of the photoelectric signal converters, so as to load a volume control information in the wireless energy, wherein the volume control information is configured in the The microprocessor of the interactive music tag of the interactive music tag reading device receives the wireless energy from one of the first end or the second end of the LC resonant circuit and decodes the volume control information, wherein the microprocessor is configured on the interactive music tag. The microprocessor of the interactive music tag of the music tag reading device determines the intensity of the analog optical signal based on the volume control information. The interactive music tag system as described in claim 20, wherein the LC resonant circuit includes: an inductor including a first end and a second end, wherein the first end of the inductor is coupled to the LC resonant circuit a first end, a second end of the inductor coupled to the second end of the LC resonant circuit; and a capacitor including a first end and a second end, wherein the first end of the capacitor is coupled to the LC resonant circuit The first terminal of the circuit and the second terminal of the capacitor are coupled to the second terminal of the LC resonant circuit. The interactive music tag system as described in claim 20, wherein the optical receiving device includes an infrared photodiode. Such as the interactive music tag system recorded in claim 20, wherein each of the photoelectric signal converters includes: a photodiode; an optical signal amplification circuit including an input terminal and an output terminal, wherein the The input end of the optical signal amplifier circuit is coupled to the photodiode. A sound processing method of an interactive music tag system, suitable for at least one interactive music tag and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: when the interactive music tag approaches the interactive music tag reading device When: outputting a wireless energy to the interactive music tag to activate the interactive music tag; and when playing audio: according to the stored sound data, the interactive music tag outputs an analog optical signal to the interactive music tag reading device The optical receiving device converts the analog optical signal into an analog sound electrical signal; At each preset time, a synchronization signal is loaded on the wireless energy; and when the LC resonant circuit of the interactive music tag receives the wireless energy: the wireless energy is decoded to decode the synchronization signal; according to the played The sampling rate of the music and the time code of the synchronization signal are used to adjust the rate of the music output at each subsequent preset time. The sound processing method of the interactive music tag system as described in claim 24, wherein the LC resonant circuit includes: an inductor including a first end and a second end, wherein the first end of the inductor is coupled The first end of the LC resonant circuit, the second end of the inductor is coupled to the second end of the LC resonant circuit; and a capacitor including a first end and a second end, wherein the first end of the capacitor is coupled to The capacitor is connected to the first end of the LC resonant circuit, and the second end of the capacitor is coupled to the second end of the LC resonant circuit. The sound processing method of the interactive music tag system as described in claim 24, wherein the optical receiving device includes an infrared photodiode. The sound processing method of the interactive music tag system as described in claim 24, wherein the interactive music tag system further includes a second interactive music tag, wherein when the LC resonant circuit of the second interactive music tag receives the Wireless energy: The microprocessor of the second interactive music tag receives the wireless energy from one of the first end or the second end of the LC resonant circuit, decodes the synchronization signal and determines the second synchronization signal based on the time code of the synchronization signal. The start time of the second analog sound signal output by the interactive music tag. The sound processing method of the interactive music tag system as described in request item 24, wherein the frequency of the music output at each subsequent preset time is adjusted according to the sampling rate of the played music and the time code of the synchronization signal. The rate also includes Calculate the number of sampling points of the output music within each preset time. The sound processing method of the interactive music tag system as described in request item 28, wherein the frequency of the music output at each subsequent preset time is adjusted according to the sampling rate of the played music and the time code of the synchronization signal. The rate further includes: when the number of sampling points sent is less than a standard number of sampling points that should be sent at each preset time, then the number of sampling points sent is increased to speed up the music playback speed. The sound processing method of the interactive music tag system as described in request item 28, wherein the frequency of the music output at each subsequent preset time is adjusted according to the sampling rate of the played music and the time code of the synchronization signal. The rate further includes: when the number of sampling points sent is greater than a standard number of sampling points that should be sent at each preset time, then the number of sampling points sent is reduced to slow down the music playback speed. A sound processing method of an interactive music tag system, suitable for multiple interactive music tags and an interactive music tag reading device. The sound processing method of the interactive music tag system includes: dividing the plurality of interactive music tags into at least one first group and a second group; when at least one interactive music tag among the plurality of interactive music tags is close to the interactive music tag reading device: output a wireless energy to the interactive music tag to activate the interactive music tag; and configure The interactive music tag in the interactive music tag reading device returns group information through the LC resonant circuit; and at each preset time, the interactive music tag reading device loads a synchronization signal in the wireless energy, wherein the The synchronization signal includes a currently playing group information. When the interactive music tags receive the wireless energy, the synchronization signal is decoded to obtain the currently playing group information; when the currently playing group information corresponds to the first group Group, the second group of interactive music labels are prohibited from outputting analog optical signals. The sound processing method of the interactive music tag system as described in request item 31, wherein the LC resonant circuit includes: An inductor includes a first end and a second end, wherein the first end of the inductor is coupled to the first end of the LC resonant circuit, and the second end of the inductor is coupled to the second end of the LC resonant circuit; and a capacitor, including a first end and a second end, wherein the first end of the capacitor is coupled to the first end of the LC resonant circuit, and the second end of the capacitor is coupled to the second end of the LC resonant circuit. . The sound processing method of the interactive music tag system as described in claim 31, wherein the optical receiving device includes an infrared photodiode. The sound processing method of the interactive music tag system as described in request item 31, wherein when a specific interactive music tag of the first group is placed on the interactive music tag reading device, the microprocessor of the specific interactive music tag The processor receives the wireless energy from one of the first end or the second end of the resonant circuit, decodes the synchronization signal, and confirms the currently playing group information output by the interactive music tag reading device and the specific interactive music tag. group information is the same, the specific interactive music tag is based on the synchronized information The time code of the signal determines the start broadcast time of the corresponding output analog sound signal.