CN116528108A - Linear array stereo set that facilitates use - Google Patents
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- H—ELECTRICITY
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Abstract
The invention relates to the technical field of sound amplifying equipment, in particular to a linear array sound box convenient to use, which comprises: the conveying module comprises a supporting platform, a conveying wheel and a power motor; the sound amplifying module comprises a primary sound and a secondary sound group; the auxiliary module, angle adjusting assembly, slide rail and limiting assembly; the detection module comprises a decibel meter, a vibration sensor and a vision sensor; the central control module is used for adjusting the running power of the sound amplifying module according to the difference value between the preset first sound volume and the average sound volume calculated by the detection of a plurality of detection positions, or adjusting the rotation angle of the secondary sound set according to the maximum sound volume difference value of the adjacent detection positions in a plurality of connected detection positions, or adjusting the standard cleaning duration of the sound amplifying surface according to the pollutant area of the sound amplifying surface; the invention realizes the improvement of the effectiveness and stability of the sound output of the linear array sound equipment.
Description
Technical Field
The invention relates to the technical field of sound amplifying equipment, in particular to a linear array sound box convenient to use.
Background
The linear array loudspeaker box is a group of radiation units which are arranged in a straight line and are closely spaced and have the same amplitude and phase, and the linear array loudspeaker box can provide very good directivity of the vertical coverage surface so as to obtain good sound effect.
Chinese patent publication No.: CN115134694a discloses a linear array sound box which is convenient to use, comprising a first sound box and a second sound box; the top of the first sound box is provided with an adjusting device, the adjusting device comprises a supporting structure and a sliding seat structure, and the bottom of the supporting structure is rotatably arranged at the top of the first sound box and can swing to a required position for locking; the sliding seat structure is arranged on the supporting structure, moves along the supporting structure and can move to a required position for locking; the second sound equipment is arranged on the sliding seat structure, and the adjusting device is adjusted to realize the horizontal placement, vertical placement and vertical height adjustment of the second sound equipment; the portable linear array sound box can be conveniently adjusted, the occupied space for carrying is reduced, and therefore the following problems exist in the portable linear array sound box: the insufficient accuracy of determination of the wind interference effect leads to a decrease in the effectiveness of sound output of the line loudspeaker.
Disclosure of Invention
Therefore, the invention provides the linear array sound equipment which is convenient to use, and is used for solving the problem that the sound output effectiveness of the linear array sound equipment is reduced due to insufficient judgment accuracy on the wind interference effect in the prior art.
In order to achieve the above object, the present invention provides a linear array acoustic apparatus which is convenient to use, comprising: the conveying module is used for conveying the sound equipment at the corresponding position and comprises a supporting platform for placing the sound equipment, a plurality of conveying wheels arranged below the supporting platform and a power motor arranged below the supporting platform and used for providing running power for the conveying wheels; the sound amplifying module is used for expanding the decibels of the input sound of the microphone and comprises a primary sound box arranged on the supporting platform and a secondary sound box group arranged above the primary sound box; the auxiliary module is connected with the sound amplifying module, adjusts the tone quality of sound output by the sound amplifying module through adjusting the position of the secondary sound set, and comprises an angle adjusting component, a sliding rail and limiting components, wherein the angle adjusting component is partially arranged above the primary sound and used for adjusting the rotation angle of the secondary sound set, the sliding rail is arranged on the upper surface of the primary sound and used for changing the horizontal position of the secondary sound set, and the limiting components are arranged at two ends of the sliding rail and used for controlling the horizontal position of the secondary sound set; the detection module is respectively connected with the sound amplifying module and the auxiliary module and comprises a plurality of decibels, a vibration sensor and a visual sensor, wherein the decibels are arranged at different positions above a stage and used for detecting the size of on-site sound, the vibration sensor is arranged on the side surface of the secondary sound group and used for detecting the vibration intensity of the secondary sound group, and the visual sensor is arranged on the support platform and used for detecting the pollutant areas of the sound amplifying surfaces of the primary sound and the secondary sound group; the central control module is respectively connected with the conveying module, the sound amplifying module, the auxiliary module and the detection module, and is used for judging whether the sound diffusion capacity of the sound equipment is within an allowable range according to the average sound volume detected and calculated by the decibel meter at a plurality of detection positions, adjusting the operation power of the sound amplifying module to a corresponding value according to the difference value between the preset first sound volume and the average sound volume detected and calculated by the plurality of detection positions, or adjusting the rotation angle of the secondary sound equipment to a first corresponding angle according to the maximum sound volume difference value of the adjacent detection positions in the plurality of connected detection positions, or adjusting the standard cleaning time of the sound amplifying surface to a corresponding time according to the pollutant area of the sound amplifying surface, and secondarily adjusting the rotation angle of the secondary sound equipment to a second corresponding angle according to the vibration amplitude detected by the vibration sensor.
Further, the angle adjustment assembly includes:
the angle sensor is arranged on the secondary sound group shell and used for acquiring the angle of the secondary sound group;
and the servo motor is arranged at the bottom of the secondary sound unit and used for adjusting the rotation angle of the secondary sound unit.
Further, the central control module judges whether the sound diffusion capacity of the sound equipment is within an allowable range according to the average volume calculated by the detection of the plurality of detection positions, wherein,
the first judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the condition of a preset first volume, and the operation power of the sound amplifying module is adjusted to a corresponding value by calculating the difference value between the preset first volume and the average volume calculated by detecting a plurality of detection positions;
the second judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the preset second volume condition, preliminarily judges that the wind interference degree exceeds the allowable range, and carries out secondary judgment on the wind interference degree according to the maximum volume difference of the adjacent detection positions in the plurality of connected detection positions;
the preset first volume condition is that the average volume of a plurality of detection positions is smaller than or equal to the preset first volume; the preset second volume condition is that the average volume of the detection positions is larger than the preset first volume and smaller than or equal to the preset second volume.
Wherein, the calculation formula of the average volume is:
wherein D is the average volume of sound,for the volume of the i-th detection position, n is the total number of detection positions, and n is a natural number equal to or greater than 1.
Further, the central control module is used for adjusting the running power of the sound amplifying module according to two adjusting modes of the difference value between the preset first sound volume and the average sound volume calculated by the detection of a plurality of detection positions,
the first adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to the operation power of the first sound amplifying module by using a preset first volume adjusting coefficient under the condition of a preset first volume difference value;
the second adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to the operation power of the second sound amplifying module by using a preset second volume adjusting coefficient under the condition of a preset second volume difference value;
the preset first volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is smaller than or equal to the preset volume difference; the preset second volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is larger than the preset volume difference, and the preset first volume adjustment coefficient is smaller than the preset second volume adjustment coefficient.
Further, the central control module screens the maximum value of the volume difference quantity of the adjacent detection positions in the volumes detected by the plurality of connected detection positions under the preset second volume condition, and carries out secondary judgment on the wind interference degree according to the screened maximum volume difference quantity of the adjacent detection positions,
the first secondary judgment method is that the central control module judges that the wind power interference degree exceeds the allowable range under the preset first difference condition, and adjusts the rotation angle of the secondary sound set by calculating the difference value of the maximum volume difference value of the adjacent detection positions and the preset first difference value;
the second secondary judging method is that the central control module judges that the wind interference degree exceeds the allowable range under the preset second difference condition, primarily judges that the aging degree of the linear array sound is beyond the allowable range, and secondarily judges the aging degree of the linear array sound according to the pollutant area of the sound amplifying surface;
the preset first difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset first difference and smaller than or equal to the preset second difference; the preset second difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset second difference.
Further, the central control module determines two adjustment modes for the rotation angle of the secondary sound set according to the difference value of the maximum volume difference value of the adjacent detection positions and the preset first difference value under the preset first difference condition, wherein,
the first rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set to a first angle by using a preset first angle adjusting coefficient under the condition of a preset first difference value;
the second rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set to a second angle by using a preset second angle adjusting coefficient under the condition of a preset second difference value;
the preset first difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is smaller than or equal to the preset difference value; the preset second difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is larger than the preset difference value, and the preset first angle adjustment coefficient is smaller than the preset second angle adjustment coefficient.
Further, the central control module carries out secondary judgment on the aging degree of the linear array sound according to the pollutant area of the sound amplifying surface under the preset second difference condition, wherein,
The first aging degree judging method is that the central control module judges that the aging degree of the linear array sound exceeds an allowable range under the condition of a preset area;
the preset area condition is that the pollutant area of the sound amplifying surface is larger than the preset area.
Further, the central control module determines two adjusting methods for the standard cleaning time length of the sound amplifying surface according to the difference value of the pollutant area of the sound amplifying surface and the preset area under the preset area condition, wherein,
the first time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a first cleaning time length by using a preset first time length adjusting coefficient under the condition of a preset first area difference value;
the second time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a second cleaning time length by using a preset second time length adjusting coefficient under the condition of a preset second area difference value;
the preset first area difference value condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is smaller than or equal to the preset area difference value; the preset second area difference condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is larger than the preset area difference value, and the preset first time length adjusting coefficient is smaller than the preset second time length adjusting coefficient.
Further, after the rotation angle of the secondary sound set is adjusted, the central control module judges the structural stability of the secondary sound set according to the vibration amplitude detected by the vibration sensor, wherein,
the first stability judging method is that the central control module judges that the structural stability of the secondary sound group is lower than the allowable range under the condition of preset vibration amplitude;
the preset vibration amplitude condition is that the vibration amplitude is larger than the preset vibration amplitude.
Further, the central control module determines a secondary adjustment mode of the rotation angle of the secondary sound group according to the difference value between the vibration amplitude and the preset vibration amplitude under the condition of the preset vibration amplitude, wherein,
the first rotating angle secondary adjusting mode is that the central control module adjusts the rotating angle of the secondary sound set to a third angle by using a preset fourth angle secondary adjusting coefficient under the condition of presetting a first amplitude difference value;
the second rotation angle secondary adjustment mode is that the central control module adjusts the rotation angle of the secondary sound set to a fourth angle by using a preset third angle secondary adjustment coefficient under the condition of presetting a second amplitude difference value;
the preset first amplitude difference condition is that the difference value between the vibration amplitude and the preset vibration amplitude is smaller than or equal to the preset amplitude difference value; the preset second amplitude difference value condition is that the difference value between the vibration amplitude and the preset vibration amplitude is larger than the preset amplitude difference value; the preset third angle secondary adjustment coefficient is smaller than the preset fourth angle secondary adjustment coefficient.
Compared with the prior art, the linear array sound device has the beneficial effects that the linear array sound device is provided with the conveying module, the sound amplifying module, the auxiliary module, the detecting module and the central control module, the running power of the sound amplifying module of the linear array sound device, the rotation angle of the secondary sound device and the standard cleaning time length of the sound amplifying surface are adjusted in the running process of the linear array sound device, the central control module adjusts the running power of the sound amplifying module of the linear array sound device according to the average sound volume calculated by detecting the plurality of detecting positions of the decibel meter, the output volume level of the primary sound device is improved by increasing the running power of the sound amplifying module of the linear array sound device, the rotation angle of the secondary sound device is adjusted according to the maximum sound volume difference of the adjacent detecting positions in the plurality of connected detecting positions, the windward area of the secondary sound device is reduced by increasing the rotation angle of the secondary sound device, the influence of wind force on the sound diffusing capacity is further reduced, the standard cleaning time length of the sound amplifying surface is adjusted according to the pollutant area of the sound amplifying surface, the blocking of the sound amplifying surface on a propagation hole is reduced by increasing the standard cleaning time length of the sound amplifying surface, the sound amplifying effect is improved according to the sound ageing, the vibration stability of the secondary sound device is further improved, and the stability of the secondary sound device is further adjusted according to the vibration stability of the secondary sound device is improved.
Further, the linear array sound box judges the sound diffusion capacity of the sound box according to the average sound volume calculated by detecting a plurality of detection positions by setting a preset first sound volume condition and a preset second sound volume condition, and the central control module adjusts the operation power of the sound box module by setting a preset first sound volume difference value condition, a preset second sound volume difference value condition, a preset first sound volume adjusting coefficient and a preset second sound volume adjusting coefficient under the preset first sound volume condition, so that the sound volume of the detection positions is lower than the allowable sound volume due to the fact that the operation power of the sound box module is too low, the output sound volume level of the primary sound box is improved by increasing the operation power of the sound box module, the diffusion capacity of the sound box is improved, and the effectiveness and stability of the sound output of the linear array sound box are further improved.
Further, the linear array sound provided by the invention judges the wind interference degree according to the maximum volume difference of the adjacent detection positions by setting the preset first difference condition and the preset second difference condition, and under the preset first difference condition, the central control module adjusts the rotation angle of the secondary sound set by setting the preset first difference value condition, the preset second difference value condition, the preset first angle adjustment coefficient and the preset second angle adjustment coefficient, and reduces the windward area of the secondary sound set by increasing the rotation angle of the secondary sound set so as to reduce the influence of wind on sound volume propagation, thereby further improving the effectiveness and stability of the sound output of the linear array sound.
Further, the linear array sound provided by the invention judges the aging degree of the linear array sound by setting the preset area condition, and under the preset area condition, the effectiveness and stability of the sound output of the linear array sound are further improved by setting the preset first area difference condition, the preset second area difference condition, the preset first time length adjustment coefficient and the preset second time length adjustment coefficient, and the central control module adjusts the standard cleaning time length of the sound amplifying surface, and reduces the influence of the aging of the linear array sound on the sound definition by increasing the standard cleaning time length of the sound amplifying surface.
Further, the linear array sound device judges the structural stability of the secondary sound device according to the vibration amplitude by setting the preset vibration amplitude condition, and under the preset vibration amplitude condition, the central control module secondarily adjusts the rotation angle of the secondary sound device by setting the preset first amplitude difference value condition, the preset second amplitude difference value condition, the preset third angle secondary adjustment coefficient and the preset fourth angle secondary adjustment coefficient, and the stability of the secondary sound device is improved by reducing the rotation angle of the secondary sound device, so that the effectiveness and stability of the sound output of the linear array sound device are further improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a linear array sound device which is convenient to use according to an embodiment of the invention;
fig. 2 is a block diagram of the overall structure of a linear array sound device which is convenient to use according to the embodiment of the invention;
fig. 3 is a specific structural block diagram of a detection module of a linear array sound device, which is convenient to use in an embodiment of the present invention;
fig. 4 is a block diagram of a connection structure between a detection module and a central control module of a linear array sound device, which is convenient to use in an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the overall structure diagram, the overall structure block diagram, the specific structure block diagram of the detection module, and the connection structure block diagram of the detection module and the central control module of the linear array sound box according to the embodiment of the invention are respectively shown; the invention relates to a linear array sound box convenient to use, which comprises:
The conveying module is used for conveying the sound equipment at the corresponding position and comprises a supporting platform 11 used for placing the sound equipment, a plurality of conveying wheels 7 arranged below the supporting platform and a power motor 8 arranged below the supporting platform and used for providing running power for the conveying wheels 7;
the sound amplifying module is used for amplifying the decibels of the input sound of the microphone and comprises a primary sound 14 arranged on the supporting platform and a secondary sound group 4 arranged above the primary sound;
the auxiliary module is connected with the sound amplifying module, adjusts the sound quality of sound output by the sound amplifying module by adjusting the position of the secondary sound unit 4, and comprises an angle adjusting component, a sliding rail 3 and limiting components, wherein the angle adjusting component is partially arranged above the primary sound and used for adjusting the rotation angle of the secondary sound unit 4, the sliding rail 3 is arranged on the upper surface of the primary sound and used for changing the horizontal position of the secondary sound unit 4, and the limiting components are arranged at two ends of the sliding rail 3 and used for controlling the horizontal position of the secondary sound unit 4;
the detection module is respectively connected with the sound amplifying module and the auxiliary module and comprises a plurality of decibels (not shown in the figure) which are arranged at different positions above the stage and used for detecting the size of on-site sound, a vibration sensor 1 which is arranged on the side surface of the secondary sound unit 4 and used for detecting the vibration intensity of the secondary sound unit 4, and a visual sensor 10 which is arranged on the support platform and used for detecting the pollutant areas of the sound amplifying surfaces of the primary sound unit and the secondary sound unit 4;
The central control module is respectively connected with the conveying module, the sound amplifying module, the auxiliary module and the detection module and is used for judging whether the sound diffusion capacity of the sound equipment is within an allowable range according to the average sound volume detected and calculated by the decibel meter at a plurality of detection positions, adjusting the operation power of the sound amplifying module to a corresponding value according to the difference value between the preset first sound volume and the average sound volume detected and calculated by the plurality of detection positions, or adjusting the rotation angle of the secondary sound equipment 4 to a first corresponding angle according to the maximum sound volume difference value of the adjacent detection positions in the plurality of connected detection positions, or adjusting the standard cleaning time of the sound amplifying surface to a corresponding time according to the pollutant area of the sound amplifying surface,
and secondarily adjusting the rotation angle of the secondary sound set 4 to a second corresponding angle according to the vibration amplitude detected by the vibration sensor 1.
Specifically, the secondary sound group includes a plurality of secondary sounds.
Specifically, the volume of the primary sound is smaller than the volume of the secondary sound.
Specifically, the spacing assembly includes:
the first limiting buckle 6 and the second limiting buckle 13 are respectively arranged at two ends of the sliding rail and used for limiting the horizontal position of the secondary sound unit 4;
The first limiting motor 9 is connected with the first limiting buckle 6 and is used for providing horizontal movement power for the first limiting buckle 6;
and the second limiting motor 12 is connected with the second limiting buckle 13 and is used for providing horizontal movement power for the second limiting buckle 13.
According to the linear array sound box, the conveying module, the sound amplifying module, the auxiliary module, the detecting module and the central control module are arranged, the operation power of the sound amplifying module of the linear array sound box, the rotation angle of the secondary sound box group 4 and the standard cleaning duration of a sound amplifying surface are adjusted in the operation process of the linear array sound box, the central control module adjusts the operation power of the sound amplifying module of the linear array sound box according to the average sound volume calculated by detecting the sound amplifying module of the linear array sound box at a plurality of detecting positions, the output volume level of the primary sound box is improved through increasing the operation power of the sound amplifying module of the linear array sound box, the rotation angle of the secondary sound box group 4 is adjusted according to the maximum volume difference of adjacent detecting positions in a plurality of connected detecting positions, the windward area of the sound box group 4 is reduced through increasing the rotation angle of the secondary sound box group 4, the influence of wind force on the sound diffusing capability is further reduced, the standard cleaning duration of the sound amplifying surface is adjusted according to the pollutant area of the sound amplifying surface, the blocking of a propagation hole is reduced due to the sound ageing by increasing the standard cleaning duration of the sound amplifying surface, the sound box is further improved, the sound box rotation angle of the secondary sound box group 4 is adjusted according to the amplitude detected by the vibration sensor 1, and the stability of the linear array sound box is further improved.
Further, the angle adjustment assembly includes:
the angle sensor 5 is arranged on the shell of the secondary sound unit 4 and used for acquiring the angle of the secondary sound unit 4;
and the servo motor 2 is arranged at the bottom of the secondary sound unit 4 and used for adjusting the rotation angle of the secondary sound unit 4.
Further, the central control module judges whether the sound diffusion capacity of the sound equipment is within an allowable range according to the average volume calculated by the detection of the plurality of detection positions, wherein,
the first judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the condition of a preset first volume, and the operation power of the sound amplifying module is adjusted to a corresponding value by calculating the difference value between the preset first volume and the average volume calculated by detecting a plurality of detection positions;
the second judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the preset second volume condition, preliminarily judges that the wind interference degree exceeds the allowable range, and carries out secondary judgment on the wind interference degree according to the maximum volume difference of the adjacent detection positions in the plurality of connected detection positions;
the preset first volume condition is that the average volume of a plurality of detection positions is smaller than or equal to the preset first volume; the preset second volume condition is that the average volume of the detection positions is larger than the preset first volume and smaller than or equal to the preset second volume.
Wherein, the calculation formula of the average volume is:
wherein D is the average volume of sound,for the volume of the i-th detection position, n is the total number of detection positions, and n is a natural number equal to or greater than 1.
Specifically, D is an average volume calculated by a plurality of detection position detections, a preset first volume is denoted as D1, a preset second volume is denoted as D2, a difference between the preset first volume and the average volume calculated by the plurality of detection position detections is denoted as Δd, and Δd=d1-D is set.
Further, the central control module is used for adjusting the running power of the sound amplifying module according to two adjusting modes of the difference value between the preset first sound volume and the average sound volume calculated by the detection of a plurality of detection positions,
the first adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to the operation power of the first sound amplifying module by using a preset first volume adjusting coefficient under the condition of a preset first volume difference value;
the second adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to the operation power of the second sound amplifying module by using a preset second volume adjusting coefficient under the condition of a preset second volume difference value;
the preset first volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is smaller than or equal to the preset volume difference; the preset second volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is larger than the preset volume difference, and the preset first volume adjustment coefficient is smaller than the preset second volume adjustment coefficient.
Specifically, the preset volume difference is denoted as Δd0, the preset first volume adjustment coefficient is denoted as α1, the preset second volume adjustment coefficient is denoted as α2, where 1 < α1 < α2, the operating power of the amplifying module is denoted as P, the operating power of the amplifying module after adjustment is denoted as P ', and P' =p×αj is set, where αj is the preset jth volume adjustment coefficient, and j=1, 2.
According to the linear array sound box, the sound diffusion capacity of the sound box is judged according to the average sound volume calculated through detection of a plurality of detection positions by setting a preset first sound volume condition and a preset second sound volume condition, the operation power of the sound box module is regulated by the central control module through setting a preset first sound volume difference value condition, a preset second sound volume difference value condition, a preset first sound volume regulating coefficient and a preset second sound volume regulating coefficient under the preset first sound volume condition, the sound volume of the detection positions is lower than the allowable sound volume due to the fact that the operation power of the sound box module is too low, the output sound volume level of the primary sound box is improved through increasing the operation power of the sound box module, the diffusion capacity of the sound box is improved, and the effectiveness and stability of sound output of the linear array sound box are further improved.
Further, the central control module screens the maximum value of the volume difference quantity of the adjacent detection positions in the volumes detected by the plurality of connected detection positions under the preset second volume condition, and carries out secondary judgment on the wind interference degree according to the screened maximum volume difference quantity of the adjacent detection positions,
The first secondary judgment method is that the central control module judges that the wind power interference degree exceeds the allowable range under the preset first difference condition, and adjusts the rotation angle of the secondary sound set 4 by calculating the difference value of the maximum volume difference value of the adjacent detection positions and the preset first difference value;
the second secondary judging method is that the central control module judges that the wind interference degree exceeds the allowable range under the preset second difference condition, primarily judges that the aging degree of the linear array sound is beyond the allowable range, and secondarily judges the aging degree of the linear array sound according to the pollutant area of the sound amplifying surface;
the preset first difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset first difference and smaller than or equal to the preset second difference; the preset second difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset second difference.
Specifically, the maximum volume difference between the adjacent detection positions is denoted as T, the preset first difference is denoted as T1, the preset second difference is denoted as T2, the difference between the maximum volume difference between the adjacent detection positions and the preset first difference is denoted as Δt, and Δt=t-T1 is set.
Further, the central control module determines two adjustment modes for the rotation angle of the secondary sound set 4 according to the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value under the preset first difference condition, wherein,
the first rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set 4 to a first angle by using a preset first angle adjusting coefficient under the condition of a preset first difference value;
the second rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set 4 to a second angle by using a preset second angle adjusting coefficient under the condition of a preset second difference value;
the preset first difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is smaller than or equal to the preset difference value; the preset second difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is larger than the preset difference value, and the preset first angle adjustment coefficient is smaller than the preset second angle adjustment coefficient.
Specifically, the preset difference value is denoted as Δt0, the preset first angle adjustment coefficient is denoted as θ1, the preset second angle adjustment coefficient is denoted as θ2, where 1 < θ1 < θ2, the rotation angle of the secondary audio set 4 is denoted as a, the rotation angle of the adjusted secondary audio set 4 is denoted as a ', a' =a× (1+θg)/2 is set, where θg is the preset g-th angle adjustment coefficient, and g=1, 2.
According to the linear array sound box, the wind interference degree is judged according to the maximum volume difference of the adjacent detection positions by setting the preset first difference condition and the preset second difference condition, and under the preset first difference condition, the rotation angle of the secondary sound box group 4 is adjusted by the central control module by setting the preset first difference value condition, the preset second difference value condition, the preset first angle adjustment coefficient and the preset second angle adjustment coefficient, and the windward area of the secondary sound box group 4 is reduced by increasing the rotation angle of the secondary sound box group 4, so that the influence of wind power on sound volume propagation is reduced, and the effectiveness and stability of the output of the linear array sound box sound are further improved.
Further, the central control module carries out secondary judgment on the aging degree of the linear array sound according to the pollutant area of the sound amplifying surface under the preset second difference condition, wherein,
the first aging degree judging method is that the central control module judges that the aging degree of the linear array sound exceeds an allowable range under the condition of a preset area;
the preset area condition is that the pollutant area of the sound amplifying surface is larger than the preset area.
Specifically, the contaminant area of the sound amplifying surface is denoted as M, and the preset area is denoted as M0.
Further, the central control module determines two adjusting methods for the standard cleaning time length of the sound amplifying surface according to the difference value of the pollutant area of the sound amplifying surface and the preset area under the preset area condition, wherein,
the first time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a first cleaning time length by using a preset first time length adjusting coefficient under the condition of a preset first area difference value;
the second time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a second cleaning time length by using a preset second time length adjusting coefficient under the condition of a preset second area difference value;
the preset first area difference value condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is smaller than or equal to the preset area difference value; the preset second area difference condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is larger than the preset area difference value, and the preset first time length adjusting coefficient is smaller than the preset second time length adjusting coefficient.
Specifically, the difference between the pollutant area of the amplified surface and the preset area is denoted as Δm, the preset area difference is denoted as Δm0, the preset first time length adjustment coefficient is denoted as β1, the preset second time length adjustment coefficient is denoted as β2, wherein 1 < β1 < β2, the standard cleaning time length of the amplified surface is denoted as S, the standard cleaning time length of the adjusted amplified surface is denoted as S ', and S' =s×βk is set, wherein βk is the preset kth time length adjustment coefficient, and k=1, 2.
According to the linear array sound equipment, the aging degree of the linear array sound equipment is judged by setting the preset area condition, the preset first area difference value condition, the preset second area difference value condition, the preset first time length adjustment coefficient and the preset second time length adjustment coefficient are set under the preset area condition, the central control module adjusts the standard cleaning time length of the sound amplifying surface, the influence of the aging of the linear array sound equipment on sound equipment definition is reduced by increasing the standard cleaning time length of the sound amplifying surface, and the effectiveness and stability of the sound output of the linear array sound equipment are further improved.
Further, after the rotation angle of the secondary audio set 4 is adjusted, the central control module determines the structural stability of the secondary audio set 4 according to the vibration amplitude detected by the vibration sensor 1, wherein,
the first stability judging method is that the central control module judges that the structural stability of the secondary sound group 4 is lower than the allowable range under the condition of preset vibration amplitude;
the preset vibration amplitude condition is that the vibration amplitude is larger than the preset vibration amplitude.
Specifically, the vibration amplitude is denoted as F, and the preset vibration amplitude is denoted as F0.
Further, the central control module determines a secondary adjustment mode for the rotation angle of the secondary sound set 4 according to the difference value between the vibration amplitude and the preset vibration amplitude under the preset vibration amplitude condition, wherein,
The first secondary rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set 4 to a third angle by using a preset fourth secondary rotation angle adjusting coefficient under the condition of presetting a first amplitude difference value;
the second rotation angle secondary adjustment mode is that the central control module adjusts the rotation angle of the secondary sound set 4 to a fourth angle by using a preset third angle secondary adjustment coefficient under the condition of presetting a second amplitude difference value;
the preset first amplitude difference condition is that the difference value between the vibration amplitude and the preset vibration amplitude is smaller than or equal to the preset amplitude difference value; the preset second amplitude difference value condition is that the difference value between the vibration amplitude and the preset vibration amplitude is larger than the preset amplitude difference value; the preset third angle secondary adjustment coefficient is smaller than the preset fourth angle secondary adjustment coefficient.
Specifically, the difference between the vibration amplitude and the preset vibration amplitude is denoted as Δf, Δf=f-f0 is set, the preset amplitude difference is denoted as Δf0, the preset third angle secondary adjustment coefficient is denoted as θ3, the preset fourth angle secondary adjustment coefficient is denoted as θ4, where 0 < θ3 < θ4 < 1, the rotation angle of the secondary sound set 4 after secondary adjustment is denoted as a ", a" =a' ×θu is set, where θu is a preset u-th angle adjustment coefficient, and u=3, 4.
The linear array sound device judges the structural stability of the secondary sound device 4 according to the vibration amplitude by setting the preset vibration amplitude condition, and under the preset vibration amplitude condition, the central control module secondarily adjusts the rotation angle of the secondary sound device 4 by setting the preset first amplitude difference value condition, the preset second amplitude difference value condition, the preset third angle secondary adjustment coefficient and the preset fourth angle secondary adjustment coefficient, and the stability of the secondary sound device 4 is improved by reducing the rotation angle of the secondary sound device 4, so that the effectiveness and stability of the linear array sound device sound output are further improved.
Example 1
The difference between the pollutant area of the sound amplifying surface and the preset area is marked as delta M, the difference between the preset area is marked as delta M0, the preset first time length adjusting coefficient is marked as beta 1, the preset second time length adjusting coefficient is marked as beta 2, and the sound amplifying surface is amplifiedThe standard cleaning time of the sound surface is S, β1=1.2, β2=1.3, Δm0=5，S=3min，
The present example obtains Δm=4The central control module judges that DeltaM is less than or equal to DeltaM 0 and adjusts S by using beta 1, and the standard cleaning duration S' of the adjusted amplified surface is 3min multiplied by 1.2=3.6 min.
In the embodiment 1, the ΔM central control module is calculated to adjust S by using beta 1, and the pollutant area of the sound amplifying surface is reduced by increasing the standard cleaning time length of the sound amplifying surface, so that the effectiveness and stability of the sound output of the linear array sound equipment are further improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a linear array stereo set that facilitates use which characterized in that includes:
the conveying module is used for conveying the sound equipment at the corresponding position and comprises a supporting platform for placing the sound equipment, a plurality of conveying wheels arranged below the supporting platform and a power motor arranged below the supporting platform and used for providing running power for the conveying wheels;
The sound amplifying module is used for expanding the decibels of the input sound of the microphone and comprises a primary sound box arranged on the supporting platform and a secondary sound box group arranged above the primary sound box;
the auxiliary module is connected with the sound amplifying module, adjusts the tone quality of sound output by the sound amplifying module through adjusting the position of the secondary sound set, and comprises an angle adjusting component, a sliding rail and limiting components, wherein the angle adjusting component is partially arranged above the primary sound and used for adjusting the rotation angle of the secondary sound set, the sliding rail is arranged on the upper surface of the primary sound and used for changing the horizontal position of the secondary sound set, and the limiting components are arranged at two ends of the sliding rail and used for controlling the horizontal position of the secondary sound set;
the detection module is respectively connected with the sound amplifying module and the auxiliary module and comprises a plurality of decibels, a vibration sensor and a visual sensor, wherein the decibels are arranged at different positions above a stage and used for detecting the size of on-site sound, the vibration sensor is arranged on the side surface of the secondary sound group and used for detecting the vibration intensity of the secondary sound group, and the visual sensor is arranged on the support platform and used for detecting the pollutant areas of the sound amplifying surfaces of the primary sound and the secondary sound group;
The central control module is respectively connected with the conveying module, the sound amplifying module, the auxiliary module and the detection module and is used for judging whether the sound diffusion capacity of the sound equipment is within an allowable range according to the average sound volume detected and calculated by the decibel meter at a plurality of detection positions, adjusting the operation power of the sound amplifying module to a corresponding value according to the difference value between the preset first sound volume and the average sound volume detected and calculated by the plurality of detection positions, or adjusting the rotation angle of the secondary sound equipment to a first corresponding angle according to the maximum sound volume difference value of the adjacent detection positions in the plurality of connected detection positions, or adjusting the standard cleaning time of the sound amplifying surface to a corresponding time according to the pollutant area of the sound amplifying surface,
and secondarily adjusting the rotation angle of the secondary sound set to a second corresponding angle according to the vibration amplitude detected by the vibration sensor.
2. The easy-to-use linear array sound according to claim 1, wherein the angle adjusting assembly comprises:
the angle sensor is arranged on the secondary sound group shell and used for acquiring the angle of the secondary sound group;
and the servo motor is arranged at the bottom of the secondary sound unit and used for adjusting the rotation angle of the secondary sound unit.
3. The line loudspeaker of claim 1, wherein the central control module determines whether the sound diffusing capacity of the loudspeaker is within an allowable range according to the average volume calculated by the detection of the plurality of detection positions,
the first judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the condition of a preset first volume, and the operation power of the sound amplifying module is adjusted to a corresponding value by calculating the difference value between the preset first volume and the average volume calculated by detecting a plurality of detection positions;
the second judging method is that the central control module judges that the sound diffusion capacity is lower than the allowable range under the preset second volume condition, preliminarily judges that the wind interference degree exceeds the allowable range, and carries out secondary judgment on the wind interference degree according to the maximum volume difference of the adjacent detection positions in the plurality of connected detection positions;
the preset first volume condition is that the average volume is smaller than or equal to the preset first volume; the preset second volume condition is that the average volume is larger than the preset first volume and smaller than or equal to the preset second volume;
wherein, the calculation formula of the average volume is:
Wherein D is the average volume of sound,the volume of the i-th detection position, n is the total number of detection positionsAnd n is a natural number greater than or equal to 1.
4. The line loudspeaker of claim 3, wherein the central control module determines two adjustment modes for the operation power of the sound amplifying module according to a difference between a preset first sound volume and an average sound volume calculated by detecting a plurality of detection positions,
the first adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to the first operation power by using a preset first volume adjusting coefficient under the condition of a preset first volume difference value;
the second adjusting mode is that the central control module adjusts the operation power of the sound amplifying module to a second operation power by using a preset second volume adjusting coefficient under the condition of a preset second volume difference value;
the preset first volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is smaller than or equal to the preset volume difference; the preset second volume difference condition is that the difference between the preset first volume and the average volume calculated by detecting a plurality of detection positions is larger than the preset volume difference, and the preset first volume adjustment coefficient is smaller than the preset second volume adjustment coefficient.
5. The line loudspeaker of claim 3, wherein the central control module screens a maximum value of volume difference amounts of adjacent detection positions among volumes detected by the plurality of connected detection positions under a preset second volume condition, and performs a secondary judgment on the wind interference degree according to the screened maximum volume difference amounts of the adjacent detection positions,
the first secondary judgment method is that the central control module judges that the wind power interference degree exceeds the allowable range under the preset first difference condition, and adjusts the rotation angle of the secondary sound set by calculating the difference value of the maximum volume difference value of the adjacent detection positions and the preset first difference value;
the second secondary judging method is that the central control module judges that the wind interference degree exceeds the allowable range under the preset second difference condition, primarily judges that the aging degree of the linear array sound is beyond the allowable range, and secondarily judges the aging degree of the linear array sound according to the pollutant area of the sound amplifying surface;
the preset first difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset first difference and smaller than or equal to the preset second difference; the preset second difference condition is that the maximum volume difference of the adjacent detection positions is larger than the preset second difference.
6. The line loudspeaker of claim 5, wherein the central control module determines two adjustment modes for the rotation angle of the secondary sound set according to the difference between the maximum volume difference of the adjacent detection positions and the preset first difference under the preset first difference condition, wherein,
the first rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set to a first angle by using a preset first angle adjusting coefficient under the condition of a preset first difference value;
the second rotation angle adjusting mode is that the central control module adjusts the rotation angle of the secondary sound set to a second angle by using a preset second angle adjusting coefficient under the condition of a preset second difference value;
the preset first difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is smaller than or equal to the preset difference value; the preset second difference value condition is that the difference value between the maximum volume difference value of the adjacent detection positions and the preset first difference value is larger than the preset difference value, and the preset first angle adjustment coefficient is smaller than the preset second angle adjustment coefficient.
7. The portable linear array loudspeaker according to claim 5, wherein the central control module performs a secondary judgment on the aging degree of the linear array loudspeaker according to the pollutant area of the sound amplifying surface under a preset second differential condition, wherein,
the first aging degree judging method is that the central control module judges that the aging degree of the linear array sound exceeds an allowable range under the condition of a preset area;
the preset area condition is that the pollutant area of the sound amplifying surface is larger than the preset area.
8. The line loudspeaker of claim 7, wherein the central control module determines two adjustment methods for the standard cleaning time length of the sound amplifying surface according to the difference between the pollutant area of the sound amplifying surface and the preset area under the preset area condition, wherein,
the first time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a first cleaning time length by using a preset first time length adjusting coefficient under the condition of a preset first area difference value;
the second time length adjusting method is that the central control module adjusts the standard cleaning time length of the sound amplifying surface to a second cleaning time length by using a preset second time length adjusting coefficient under the condition of a preset second area difference value;
The preset first area difference value condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is smaller than or equal to the preset area difference value; the preset second area difference condition is that the difference value between the pollutant area of the sound amplifying surface and the preset area is larger than the preset area difference value, and the preset first time length adjusting coefficient is smaller than the preset second time length adjusting coefficient.
9. The line loudspeaker of claim 6, wherein the central control module determines the structural stability of the secondary loudspeaker set according to the vibration amplitude detected by the vibration sensor after the rotation angle of the secondary loudspeaker set is adjusted,
the first stability judging method is that the central control module judges that the structural stability of the secondary sound group is lower than the allowable range under the condition of preset vibration amplitude;
the preset vibration amplitude condition is that the vibration amplitude is larger than the preset vibration amplitude.
10. The portable linear array speaker of claim 9, wherein the central control module determines a secondary adjustment mode for the rotation angle of the secondary speaker set according to a difference between the vibration amplitude and the preset vibration amplitude under the preset vibration amplitude condition, wherein,
The first rotation angle secondary adjustment mode is that the central control module uses a preset fourth angle secondary adjustment coefficient to secondarily adjust the rotation angle of the secondary sound set to a third angle under the condition of presetting a first amplitude difference value;
the second rotation angle secondary adjustment mode is that the central control module uses a preset third angle secondary adjustment coefficient to secondarily adjust the rotation angle of the secondary sound set to a fourth angle under the condition of presetting a second amplitude difference value;
the preset first amplitude difference condition is that the difference value between the vibration amplitude and the preset vibration amplitude is smaller than or equal to the preset amplitude difference value; the preset second amplitude difference value condition is that the difference value between the vibration amplitude and the preset vibration amplitude is larger than the preset amplitude difference value; the preset third angle secondary adjustment coefficient is smaller than the preset fourth angle secondary adjustment coefficient.
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