CN114283768A - Multichannel does not have connection K sings system - Google Patents
Multichannel does not have connection K sings system Download PDFInfo
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- CN114283768A CN114283768A CN202111574236.2A CN202111574236A CN114283768A CN 114283768 A CN114283768 A CN 114283768A CN 202111574236 A CN202111574236 A CN 202111574236A CN 114283768 A CN114283768 A CN 114283768A
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Abstract
The invention relates to the field of wireless communication, and discloses a multi-path connectionless karaoke system, which comprises a sending end unit and a receiving end unit, wherein the sending end unit comprises a pickup, an audio amplifier, a sampling and shaping device, a data packet former, a modulator, a radio frequency amplifier and an antenna; the receiving end unit comprises a broadband antenna, an amplifier distributor, a demodulator, a depacketizer, an audio waveform restorer, a Type-c interface and a storage unit. In the invention, a plurality of sending end units can work simultaneously without mutual interference; the wireless communication mode of the sending end unit and the receiving end unit is not based on connection, so that interaction and signal confirmation are not needed, and the time delay is small; each receiving channel of the receiving end unit corresponds to one transmitting end, so that the received signals can be processed independently in each channel; the sending end unit can control the receiving end unit through keys in the sending end unit, and the method is simple and convenient.
Description
Technical Field
The invention belongs to the field of wireless communication, and particularly relates to a multi-path connectionless karaoke system.
Background
With the development of electronic and audio technologies, the sound system of the automobile or the television has a great development in the aspects of tone quality and sound effect, and gradually approaches or reaches the professional level, so that a professional-level karaoke system is provided for the automobile or the television, and the development of the related industries is great.
Present K sings the device and mainly divide into K sings the jukebox and the wireless K of bluetooth is singed, wherein:
the existing K song order machine has the following defects: the equipment is large, is inconvenient to place at home and is particularly unsuitable to place on a vehicle; the K song order machine is provided with a larger screen, so that the equipment is larger and the cost is higher; generally, no recording function is available; the audio signals of each channel cannot be processed separately.
The existing Bluetooth wireless karaoke has the following disadvantages: the volume is large, the cost is high, the recording function is not available, and the audio signals of each sound channel cannot be processed independently; bluetooth devices work at the same frequency, and almost all existing smart phones and smart televisions are provided with Bluetooth receiving and transmitting units, which may cause serious interference; because the Bluetooth devices work at the same frequency, different Bluetooth devices can only work in a time division manner, so that the number of connecting one Bluetooth device with other Bluetooth devices is limited; because the communication between two specific bluetooth equipments is based on the connection, namely after one party received the signal, after answering the signal for the other party, the party that sends the signal just can continue to send the signal after receiving the answer signal, namely both parties' communication is not real-time, but the delay is very big, the sound that the singer sung and the accompaniment are asynchronous.
Therefore, to solve the above problems, a new multi-channel connectionless karaoke system is proposed.
Disclosure of Invention
In order to solve the problems proposed in the background art, the invention provides a multi-path connectionless karaoke system, which comprises a sending end unit and a receiving end unit; the transmitting end unit comprises a pickup, one end of the pickup is connected with an audio amplifier, one end of the audio amplifier is connected with sampling and shaping, one end of the sampling and shaping is connected with a data packet former, one end of the data packet former is connected with a modulator, one end of the modulator is connected with a radio frequency amplifier, and one end of the radio frequency amplifier is connected with an antenna; the sound pick-up is used for converting the sound signal into an audio electric signal with the same frequency as the sound signal; the audio amplifier is used for amplifying the audio electric signal to a proper level; the sampling and shaping is used for converting an analog audio signal into a digital signal; the data packet former is used for forming data packets; the modulator is used for modulating the data packet into a radio frequency signal; the radio frequency amplifier is used for amplifying the radio frequency signal output by the modulator; the antenna is used for radiating radio frequency signals; the receiving end unit comprises a broadband antenna, one end of the broadband antenna is connected with an amplifier and a distributor, one end of the amplifier and the distributor is connected with a demodulator, one end of the demodulator is connected with a unpacking device, one end of the unpacking device is connected with an audio waveform restoring device, one end of the audio waveform restoring device is connected with a Type-c interface, and one end of the Type-c interface is connected with a storage unit; the broadband antenna is used for receiving wireless signals of the sending end unit; the amplifier and the distribution include an amplifier for amplifying the received wireless signal and a distribution for equally distributing the wireless signal; the demodulator is used for modulating the wireless signal into an information packet; the de-packetizer is used for de-packetizing the information packet; the audio waveform restoring is used for restoring the solved signals; the Type-c interface is used for transmitting signals; the storage unit is used for interacting signals with a Type-c interface.
Further, the sending end unit further comprises a power supply, and the power supply is used for providing voltage and power matched with the sending end unit.
Further, the sending end unit further comprises a key, and the key is used for controlling the sending end unit and the receiving end unit.
Further, the sending end unit further includes a frequency source, and the frequency source is configured to provide a frequency signal for the sending end unit.
Further, the receiving end unit further comprises a receiving end power supply, and the power supply is used for providing voltage and power matched with the receiving end unit.
Further, the receiving end unit further includes a frequency source of the receiving end, and the frequency source is used for providing a frequency signal for the receiving end unit.
Further, the receiving end unit further comprises a key of the receiving end, and the key is used for controlling the receiving end unit.
Further, the receiving end unit may be configured to connect to multiple transmitting end units, and may also be configured to connect to one transmitting end unit.
Further, the signal transmission between the sending end unit and the receiving end unit is FDMA signal transmission, i.e., frequency division multiple access, which divides the total bandwidth into a plurality of orthogonal channels, and each user occupies one channel.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, a plurality of sending end units can work simultaneously without mutual interference; the wireless communication mode of the sending end unit and the receiving end unit is not based on connection, so that interaction and signal confirmation are not needed, and the time delay is small; each receiving channel of the receiving end unit corresponds to one transmitting end, so that the received signals can be processed independently in each channel; the sending end unit can control the receiving end unit through keys in the sending end unit, and the method is simple and convenient.
2. The karaoke system provided by the invention does not provide a display screen while providing the song requesting function, but borrows the screen of equipment connected with the karaoke system, thereby being greatly convenient to move and reducing the cost; in addition, the karaoke system has a song storage function, and further facilitates mobility.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of a wireless transmitting end unit of the present invention;
fig. 2 is a block diagram of a wireless receiving end unit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the idle place of the device, all the electric devices and the drivers matched with the electric devices are arranged, and all the driving parts, which refer to the power element, the electric devices and the adaptive power supply, are connected through the conducting wires by the person skilled in the art, and specific connecting means refer to the following expressions that the electric connection is completed among the electric devices in sequence, and the detailed connecting means are well known in the art.
The multi-channel connectionless karaoke system provided by the present embodiment, as shown in fig. 1 and 2, includes a sending end unit and a receiving end unit, wherein:
the transmitting end unit comprises a pickup, one end of the pickup is connected with an audio amplifier, one end of the audio amplifier is connected with sampling and shaping, one end of the sampling and shaping is connected with a data packet former, one end of the data packet former is connected with a modulator, one end of the modulator is connected with a radio frequency amplifier, and one end of the radio frequency amplifier is connected with an antenna; in addition, the sending end unit also comprises a power supply, a frequency source and a key;
in the transmitting end unit:
the sound pick-up is used for converting the sound signal into an audio electric signal with the same frequency as the sound signal;
the audio amplifier is used for amplifying the audio electric signal to a proper level so as to be beneficial to the processing of a post-stage circuit;
the sampling and shaping are used for converting the analog audio signal into a digital signal so as to be beneficial to the processing of a post-stage circuit;
under the general condition, the data packet former directly transmits the input audio digital signals without any processing to ensure the real-time transmission of the signals, when the signals of the receiving end unit are controlled by the keys, the data packet former adopts a specific packet header to inform that the rear part of the receiving end unit is control information, and the receiving end unit changes the working state according to the instructions in the control information;
the modulator modulates the data packet into a radio frequency signal, and the radio frequency of any two sending end units in the same system are different from each other;
the radio frequency amplifier is an optional structure, can amplify the radio frequency signal output by the modulator to higher power, and is suitable for long-distance transmission; when the distance between the sending end unit and the receiving end unit is short, a radio frequency amplifier is not needed, and the antenna is directly connected with the radio frequency output end of the modulator;
the antenna is used for radiating the radio frequency signal to a free space for a receiver to receive;
the power supply is used for providing various power supplies with proper voltage and power for all structures in the sending end unit;
the frequency source is used for providing a required frequency signal;
part of the electric signals generated by the keys are used for controlling the state of the sending end unit and part of the electric signals are used for controlling the volume state in the receiving end unit;
in order to simplify the equipment, an analog modulation mode can be adopted, sampling and shaping and a data packet former are not needed at the moment, control signals of keys can be represented by continuous clamping signals with different numbers, the frequency of radio frequency signals of each sending end unit is controlled by a frequency source, and the signal frequency of the frequency source can be controlled by a frequency division coefficient controlled by a dial switch; in addition, in the invention, a plurality of sending end units can work simultaneously;
the receiving end unit comprises a broadband antenna, one end of the broadband antenna is connected with an amplifier and a distributor, one end of the amplifier and the distributor is connected with a demodulator, one end of the demodulator is connected with a unpacking device, one end of the unpacking device is connected with an audio waveform restoring device, one end of the audio waveform restoring device is connected with a Type-c interface, and one end of the Type-c interface is connected with a storage unit; the receiving end unit also comprises a power supply, a frequency source and a key;
in the receiving end unit:
the broadband antenna is used for receiving the wireless signals transmitted by the transmitting end unit from the free space;
the amplifier and the distribution firstly amplify signals received by the broadband antenna to proper levels, and then averagely distribute the signals to each channel according to the number of receiving channels, wherein the number of the receiving channels of the receiving end unit is the same as the maximum number of the sending end units in principle, during actual work, the number of the sending end units which actually work can be smaller than the number of the receiving channels, and at the moment, the channels which do not work also have radio frequency signals input, but do not output due to the difference of radio frequency and the channels;
the demodulator is used for demodulating the received radio frequency signal corresponding to the channel into an information packet;
the de-packetizer is used for solving the signals before the sending end unit packetizes from the packet, these signals may be speech signals, may also be control signals;
the audio waveform reduction is used for reducing the audio signal or the control signal, and when a control instruction exists, the receiving end unit should execute the relevant instruction and reach a corresponding state;
the Type-C interface transmits the restored audio signals to the connected equipment on one hand, and transmits the audio signals to the storage unit in a file form or reads the audio files from the storage unit on the other hand;
the storage unit is used for interacting audio digital signals with a Type-c interface in a file form;
the power supply provides proper voltage and power for each structure of the receiving end unit;
the frequency source is used for providing a proper frequency signal;
the key is used for controlling the working state and function of the receiving end unit;
with respect to the block diagram of the receiving end unit shown in fig. 2, different receiving channels of the same receiving end unit share the same power supply, frequency source, key, broadband antenna, amplifier and distribution, when the number of channels is small, the amplifier and distribution can be omitted, and the broadband antenna is directly connected to the rf input end of each receiving channel demodulator or the antenna port and the rf port of the rf module.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A multichannel does not have connection K sings system which characterized in that: the system comprises a sending end unit and a receiving end unit;
the transmitting end unit comprises a pickup, one end of the pickup is connected with an audio amplifier, one end of the audio amplifier is connected with sampling and shaping, one end of the sampling and shaping is connected with a data packet former, one end of the data packet former is connected with a modulator, one end of the modulator is connected with a radio frequency amplifier, and one end of the radio frequency amplifier is connected with an antenna;
the sound pick-up is used for converting the sound signal into an audio electric signal with the same frequency as the sound signal;
the audio amplifier is used for amplifying the audio electric signal to a proper level;
the sampling and shaping is used for converting an analog audio signal into a digital signal;
the data packet former is used for forming data packets;
the modulator is used for modulating the data packet into a radio frequency signal;
the radio frequency amplifier is used for amplifying the radio frequency signal output by the modulator;
the antenna is used for radiating radio frequency signals;
the receiving end unit comprises a broadband antenna, one end of the broadband antenna is connected with an amplifier and a distributor, one end of the amplifier and the distributor is connected with a demodulator, one end of the demodulator is connected with a unpacking device, one end of the unpacking device is connected with an audio waveform restoring device, one end of the audio waveform restoring device is connected with a Type-c interface, and one end of the Type-c interface is connected with a storage unit;
the broadband antenna is used for receiving wireless signals of the sending end unit;
the amplifier and the distribution include an amplifier for amplifying the received wireless signal and a distribution for equally distributing the wireless signal;
the demodulator is used for modulating the wireless signal into an information packet;
the de-packetizer is used for de-packetizing the information packet;
the audio waveform restoring is used for restoring the solved signals;
the Type-c interface is used for transmitting signals;
the storage unit is used for interacting signals with a Type-c interface.
2. The multi-channel connectionless karaoke system according to claim 1, wherein: the transmitting end unit further comprises a power supply, and the power supply is used for providing voltage and power matched with the transmitting end unit.
3. The multi-channel connectionless karaoke system according to claim 1, wherein: the sending end unit further comprises a key used for controlling the sending end unit and the receiving end unit.
4. The multi-channel connectionless karaoke system according to claim 1, wherein: the sending end unit further comprises a frequency source, and the frequency source is used for providing frequency signals for the sending end unit.
5. The multi-channel connectionless karaoke system according to claim 1, wherein: the receiving end unit also comprises a receiving end power supply, and the power supply is used for providing voltage and power matched with the receiving end unit.
6. The multi-channel connectionless karaoke system according to claim 1, wherein: the receiving end unit also comprises a frequency source of the receiving end, and the frequency source is used for providing frequency signals for the receiving end unit.
7. The multi-channel connectionless karaoke system according to claim 1, wherein: the receiving end unit also comprises a key of the receiving end, and the key is used for controlling the receiving end unit.
8. The multi-channel connectionless karaoke system according to claim 1, wherein: the receiving end unit may be configured to connect to multiple transmitting end units.
9. The multi-channel connectionless karaoke system according to claim 1, wherein: and the signal transmission between the sending end unit and the receiving end unit is FDMA signal transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111574236.2A CN114283768A (en) | 2021-12-21 | 2021-12-21 | Multichannel does not have connection K sings system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111574236.2A CN114283768A (en) | 2021-12-21 | 2021-12-21 | Multichannel does not have connection K sings system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114283768A true CN114283768A (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111574236.2A Pending CN114283768A (en) | 2021-12-21 | 2021-12-21 | Multichannel does not have connection K sings system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114283768A (en) |
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2021
- 2021-12-21 CN CN202111574236.2A patent/CN114283768A/en active Pending
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