CN-224203840-U - Black glue disc player capable of automatic selecting music

CN224203840UCN 224203840 UCN224203840 UCN 224203840UCN-224203840-U

Abstract

The utility model relates to a black glue disc player capable of automatically selecting music, which mainly comprises a magnetic induction module, a firmware operation module, a power driving module and an application program, wherein the magnetic induction module is embedded in a tone arm, the power driving module is used for controlling the tone arm to horizontally move and vertically lift, the magnetic induction module is used for monitoring the position of the tone arm on a black glue disc, the firmware operation module is used for receiving audio signals acquired by a stylus and judging a music-free area in a groove of the black glue disc through audio feature analysis and duration verification, and therefore, the magnetic induction technology is combined with firmware operation logic to monitor the music starting point and the music finishing point of the groove on the black glue disc, and the application program is used for automatically marking and managing the gap and data of the black glue disc track so as to realize the intellectualization and convenience of automatic black glue music selection playing.

Inventors

LIU SHENKENG
LAN ZEMING
WANG XIPING
LI SHIZONG
Lv Changxiu
CAI ZHONGYONG

Assignees

汉平电子工业股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250425

Claims (9)

1. The utility model provides a can select black glue record machine of song automatically, black glue record machine mainly has a record body be equipped with a carousel that bears the black glue record on the record body, the carousel is rotatory through a carousel power supply drive, just one side of carousel is equipped with a tone arm, the tone arm is installed on the record body, the front end of tone arm has the record head and is equipped with the needle on the record head, the needle can in the slot of black glue record removes in order to acquire audio frequency, its characterized in that: The voice coil arm is connected with a power driving module, the power driving module controls the horizontal movement and the vertical lifting movement of the voice coil arm, a magnetic induction module is embedded in the voice coil arm, the magnetic induction module is used for monitoring the horizontal movement position of the voice coil arm on the black rubber record, a voice coil control unit is arranged in the voice coil machine body and is connected with a rotary disc power source and the power driving module, a firmware operation module is built in the voice coil control unit and is used for receiving audio signals acquired by the voice needle, judging music gaps without music in grooves of the black rubber record through the time variation of the horizontal displacement of the voice needle in cooperation with audio feature analysis, monitoring the music starting point and the music ending point of each music on the black rubber record, the application program is used for recording and managing each music gap and data on the black rubber record, and remote control music is provided, and the voice coil control unit is driven to control the voice coil control unit to descend to play the music grooves selected by the voice coil control unit.
2. The automatic music selection disc player of claim 1, further comprising an APP program, wherein the APP program is configured on a mobile device, the APP program is wirelessly connected to a remote control module, and the remote control module is configured on the disc player body and connected to the disc player control unit, and receives a user operation command for remote music selection control through the APP program connection on the mobile device.
3. The automatic music selection disc player according to claim 1 or 2, wherein the magnetic induction module comprises a magnetic arc-shaped seat which is arranged on the rotating shaft of the tone arm and provided with travel magnet units at two ends, and a magnetic force sensing unit which is arranged on the disc player body and corresponds to the magnetic arc-shaped seat, and the magnetic force sensing unit is used for converting magnetic force changes generated when the magnetic arc-shaped seat moves into voltage changes, and then carrying out data interpretation through the firmware operation module.
4. The automatic music selection black turntable machine of claim 3, wherein the magnetic force sensing unit is a hall sensor.
5. The automatic music selection disc player according to claim 1 or 2, further comprising an analog/digital conversion unit, wherein the analog/digital conversion unit receives and converts the audio signal obtained by the stylus, and the firmware operation module analyzes the amplitude, the frequency spectrum and the duration of the audio signal to determine the music-free track gap.
6. The automatic music selection disc player of claim 5, further comprising a player signal amplifying unit, wherein the player signal amplifying unit receives and amplifies the audio signal acquired by the stylus and outputs a part of the audio signal, and the other part of the audio signal is transmitted to the analog/digital converting unit for conversion.
7. The automatic music selecting disc player of claim 6, further comprising a signal analysis unit, a signal reading unit and a signal output unit, wherein the signal output unit receives the amplified audio signal, adjusts the gain and converts the amplified audio signal, and outputs a part of the amplified audio signal, and the other part of the amplified audio signal is received by the signal reading unit and the frequency domain energy is analyzed by the signal analysis unit through fast fourier transform to distinguish music-free track gaps in the grooves.
8. The automatic music selection disc player according to claim 1 or 2, wherein the power driving module comprises a rotary motor unit for controlling the horizontal movement of the tone arm and a lifting motor unit for controlling the vertical lifting movement of the tone arm.
9. The automatic music selecting disc player according to claim 1 or 2, wherein the disc player has a first use learning process, and the position can be recorded by the application program when playing, and the track gap can be automatically marked.

Description

Black glue disc player capable of automatic selecting music Technical Field The utility model relates to the technical field of turntable players, in particular to a black glue turntable player with automatic control and song selection functions and capable of automatically selecting songs. Background Conventional black matrix record playback devices often cannot precisely locate a particular track and cannot intelligently record or digitally operate. Existing optical positioning jukeboxes, such as Sony PS-FL7 II classical model manufactured in early 80 s, use mechanical and optical systems for music selection, which are mainly equipped with optical sensors or similar tracking technologies, and a photoelectric sensor is arranged at the base of the tone arm of the jukebox for detecting the reflection difference of grooves on the surface of a record. When the optical sensor detects the blank gap, the reflection intensity of the optical sensor is different from that of the audio track groove, so that the sensor signal is triggered. It is known that conventional jukeboxes detect the blank space between the tracks of a record by means of optical sensors to learn the track separation locations (grooves) on the record. Then, the number of gaps is calculated through a simple logic circuit, the tone arm is driven to move to the target track starting position, and the actual operation is as follows: 1. setting the track number the user enters the target track number (e.g., track 3 press "3") via the number keys (0-9) of the player panel. 2. When the automatic music selection is started and the 'Search' button is pressed, the tone arm can be automatically lifted and quickly moved to the initial position of the outer edge of the record, then scanning is started, the record disc rotates at high speed (higher than the normal playing speed), and the photoelectric sensor continuously detects the track gap. Each time a gap (i.e., track interval) is detected, the counter is decremented by 1 until the counter returns to zero (the target track is reached). After reaching the target track, the tone arm automatically drops and plays at normal speed. Conventional jukebox technology has many limitations and conditions, such as a significant physical gap between tracks (about 1-2 seconds blank, about + -1 track for selection error), and the selection function may fail if the record is a continuous recording (e.g., classical music or live album). Some non-standard recorded records (e.g., under-grade brands or DIY recordings) may not be properly detected. Furthermore, photosensors are susceptible to dust, scratches or reflective labels, which may lead to false positives, especially on old or worn recordings. Besides, the following disadvantages are also present: 1. to achieve high speed scanning, the turntable platter may be accelerated briefly, possibly increasing motor load and stylus wear. 2. The success rate of selecting music is greatly influenced by the state of the record, and the practicability is lower than expected. 3. High speed scanning may accelerate the wear of the stylus and record (especially with precious black glue that is carefully used). 4. The method has no memory function, the same song is recorded, and the operation steps are repeated for each song selection. Therefore, the inventor of the scheme inherits the rich design development and actual manufacturing experience of the related industry for years, actively researches and develops, and provides the black glue turntable machine capable of automatically selecting music so as to achieve the aim of having better practical value. Disclosure of utility model The utility model mainly aims to provide a black glue turntable machine capable of automatically selecting music, in particular to a black glue turntable machine which can judge and record the groove position without music in a black glue turntable based on magnetic induction technology and intelligent firmware operation and realize the automatic positioning and music selection functions of a tone arm by combining motor control. In addition, through APP operation and data management, user experience is improved. The utility model discloses a black glue turntable machine capable of automatically selecting music, which is mainly aimed at and has the effects as follows: The black glue turntable machine mainly comprises a turntable body, wherein a turntable for bearing a black glue record is arranged on the turntable body, the turntable is driven to rotate by a turntable power source, a tone arm is arranged on one side of the turntable, the tone arm is arranged on the turntable body, a turntable head is arranged at the front end of the tone arm, a turntable needle is arranged on the turntable head, and the turntable needle can move in a groove of the black glue record to acquire audio; the intelligent black glue song-selecting and playing device mainly comprises a magnetic induction module, a firmware operation m