CN105472206A - Mobile type outdoor multimedia system - Google Patents
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- CN105472206A CN105472206A CN201410459996.2A CN201410459996A CN105472206A CN 105472206 A CN105472206 A CN 105472206A CN 201410459996 A CN201410459996 A CN 201410459996A CN 105472206 A CN105472206 A CN 105472206A
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Abstract
The invention provides a mobile type outdoor multimedia system, belonging to the technical field of multimedia equipment. The system comprises a cabinet, and a VOD module, a video playing module, a power supply management module, an audio and video switching control module, a liftable panel display and a power amplifier sound box which can be arranged in the cabinet in a concentrated manner. The power supply management module is used for uniformly controlling power supply for the panel display, the VOD module, the video playing module, and the audio and video switching control module; the audio and video switching control module is connected with the VOD module and the video playing module at least, and is configured to control the multimedia system to switch between a karaoke mode and a video playing mode. The mobile type outdoor multimedia system is convenient to use, operate, and transport, is simple and laborsaving to install and use, has great multimedia functions, is very suitable for outdoor application, and is especially suitable for outdoor or field application of army exercise and training outside.
Description
Technical field
The invention belongs to multimedia equipment technical field, relate to the outdoor multimedia system of a kind of flow-type.
Background technology
Along with the development of multimedia technology, the multimedia equipment configuring various function in indoor realization has become relatively easy, and is more and more generally installed application in the family.
Special occasions carries out having a meeting, sings amusement, outdoor when to televise etc. movable out of doors, all adopt separately independently entertainment systems to realize, and these systems is all adopt the mode of temporarily building to realize; Such as, need during meeting to adopt power amplifier and microphone etc., need when singing amusement to adopt song-order machine, power amplifying device, microphone etc.But, building of this entertainment systems is process very loaded down with trivial details and consuming time, and cost high, depend on professional person to carry out the work such as wiring, debugging, and fault is easily sent out, is difficult to realize multimedization, like this, greatly limit carrying out or expanding of the activity of outdoor special occasions.
Culture joy religion activity is carried out carry out the condition of manoeuvre, outer instruction out of doors for army under, if carrying out of its activity correspondence can be configured with corresponding multimedia system, to greatly improve the culture joy religion effect of officers and men, meet such as in the demand of political education, publicity and mobilization, urgent outdoor meeting, army's culture performance.But, if this multimedia system needs to build temporarily, by very consuming time and limit these culture joy the carrying out of religion activities.
In view of this, be necessary very much to develop a kind of new multimedia system being very suitable for outdoor interim application.
Summary of the invention
The object of the invention is to, propose a kind of be suitable for outdoor application, can carry flexibly, the outdoor multimedia system of flow-type easy to use.
For realizing above object or other objects, the invention provides the outdoor multimedia system of a kind of flow-type, comprise rack, and comprise the requesting song module that can intensively be arranged in rack, video playback module, power management module, audio frequency and video switching controls module, the panel display of Liftable type and power amplification sound box;
Wherein, described panel display correspondence is provided with lifting drive, and this lifting drive is controllably freely elevated in the short transverse of described rack for driving described panel display;
Described power management module is used for the unified power supply supply controlled described panel display, requesting song module, video playback module, audio frequency and video switching controls module;
Described audio frequency and video switching controls module is at least connected with described requesting song module and video playback module respectively, and is configured to control described multimedia system and is switchably operated in karaoke mode or video play mode.
According to the outdoor multimedia system of the flow-type of one embodiment of the invention, wherein, the housing of described rack is set to the double-decker comprising external splint and inner splint, inbuilt steel tube frame between described external splint and inner splint, is provided with moistureproof antidetonation cotton between described steel pipe frame and described external splint.
Go back the outdoor multimedia system of flow-type of an embodiment according to the present invention, wherein, panel display is explosion-proof liquid crystal display.
According to the outdoor multimedia system of the flow-type of further embodiment of this invention, wherein, panel display is configured to have hand-written and touch display screen that is erase feature.
In the multimedia system of described any embodiment before, described audio frequency and video switching controls module is provided with for the switching key of switch operating in karaoke mode or video play mode.
In the multimedia system of described any embodiment before, described video playback module is that Digital Television plays machine.
In the multimedia system of described any embodiment before, in described power management module, be provided with alternating current-direct current frequency converter.
In the multimedia system of described any embodiment before, described power amplification sound box is active audio amplifier.
In the multimedia system of described any embodiment before, in described rack, be provided with the support box of the support for putting power amplification sound box.
In the multimedia system of described any embodiment before, it is characterized in that, in described rack, be provided with receiver.
According to the outdoor multimedia system of the flow-type of yet another embodiment of the invention, wherein, described power amplification sound box is seated in the audio amplifier storage box of described rack, and the bottom in described audio amplifier storage box is provided with transmission guide rail.
In the multimedia system of described any embodiment before, the upper cover of described rack comprises front upper cover and rear upper cover, and described front upper cover can be opened backward rotatably.
In the multimedia system of described any embodiment before, the bottom of described rack is provided with multiple universal wheel.
According to the outdoor multimedia system of flow-type of the present invention's also another embodiment, wherein, described audio frequency and video switching controls module comprises
Frequency switch circuit;
Video switch circuit;
The digital audio and video signals processing unit coupled with described frequency switch circuit; And
The main control-processing unit coupled with described frequency switch circuit, video switch circuit and digital audio and video signals processing unit respectively;
Wherein, described frequency switch circuit connects requesting song module, video playback module to receive from described requesting song module first audio signal and the second audio signal from described video playback module, and described video switch circuit connection requesting song module and video playback module are to receive from described requesting song module first vision signal and the second vision signal from described video playback module;
The described frequency switch circuit of the enable control of described main control-processing unit and video switch circuit are switchably operated in karaoke mode or video play mode; Under described karaoke mode, described frequency switch circuit is selected to export described first audio signal to described digital audio and video signals processing unit, and described video switch circuit is selected to export described first vision signal; Under described video play mode, described frequency switch circuit is selected to export described second audio signal to described digital audio and video signals processing unit, and described video switch circuit is selected to export described second vision signal.
In the multimedia system of described any embodiment before, between described digital audio and video signals processing unit and described frequency switch circuit, be provided with A/D converter.
In the multimedia system of described any embodiment before, described audio frequency and video switching controls module comprises audio output and video output terminals, is provided with D/A converter between described audio output and described digital audio and video signals processing unit.
Multimedia system of the present invention is powerful, can switch by a key under a plurality of modes of operation, easy to operate; Install and use simply laborsaving, convenient in carrying, be very suitable for outdoor application, be particularly suitable for the open air of army under the condition such as manoeuvre and outer instruction or field studies, such as, carry out political education, publicity and mobilization, emergency meeting, army's culture performance etc., be very beneficial for carrying out of culture joy religion activity, enrich the culture life of officers and men when manoeuvre and outer instruction.
Accompanying drawing explanation
From following detailed description by reference to the accompanying drawings, will make above and other object of the present invention and advantage more complete clear, wherein, same or analogous key element adopts identical label to represent.
Fig. 1 is the rack external structure schematic diagram according to the outdoor multimedia system of the flow-type of one embodiment of the invention.
Fig. 2 is the front view in rack open mode according to the outdoor multimedia system of the flow-type of one embodiment of the invention.
Fig. 3 is the end view of the outdoor multimedia system of flow-type embodiment illustrated in fig. 2.
Fig. 4 is the modular structure schematic diagram at audio frequency and video switching controls center embodiment illustrated in fig. 2.
Embodiment
Introduce below be of the present invention multiple may some in embodiment, aim to provide basic understanding of the present invention, be not intended to confirm key of the present invention or conclusive key element or limit claimed scope.Easy understand, according to technical scheme of the present invention, do not changing under connotation of the present invention, one of ordinary skill in the art can propose other implementations that can mutually replace.Therefore, following embodiment and accompanying drawing are only the exemplary illustrations to technical scheme of the present invention, and should not be considered as of the present invention all or the restriction be considered as technical solution of the present invention or restriction.
In the present invention, Karaoke refers to pre-record on the storage medium in broadcasting, not to have the musical background of leading singer's voice synchronously to play the lyrics having beat to point out simultaneously, on display fluorescent screen, and participant can see that the lyrics hold microphone singing in this mode; Video playback refers to as user provides continuous print video playback to watch for user.Although it is to be appreciated that also there is video playback in karaoke mode, karaoke mode emphasis user sings experience, and video play mode focuses on the viewing experience of user relatively, and therefore video play mode more focuses on the readability of video playback usually.Karaoke mode and video play mode can expand its definition category along with the expansion of their function.
Figure 1 shows that the rack external structure schematic diagram according to the outdoor multimedia system of the flow-type of one embodiment of the invention; Figure 2 shows that the front view in rack open mode according to the outdoor multimedia system of the flow-type of one embodiment of the invention; Figure 3 shows that the end view of the outdoor multimedia system of flow-type embodiment illustrated in fig. 2.Below in conjunction with Fig. 1 to Fig. 3, the structure of the outdoor multimedia system of the flow-type of the embodiment of the present invention is described in detail.
In this embodiment, the display 11 of multimedia system 10, song-order machine 12, Digital Television are play machine 13, audio frequency and video switching controls center 14, power management module 15 and power amplification sound box 16 and are intensively arranged in its rack 100, very convenient like this entirety carrying, easily meets multimedia demand that is outdoor or field.
In this embodiment, rack 100 can be, but not limited to as rectangular body structure, and the shape of its equipment specifically can put according to inside etc. are because usually designing, and the concrete size of rack 100 neither be restrictive.Rack 100 is arranged the protecgulum 101 and front upper cover 103a, rear upper cover 103b that can open or close, front upper cover 103a and rear upper cover 103b forms upper cover, and wherein, upper cover 103b can open backward, facilitates it upwards to rise like this when using display 11.Rack 100 uses relatively-stationary side plate 102 and rear plate (not shown), side plate 102 is fixedly installed the structure for convenient carrying, such as handgrip.The housing of rack 100 is preferably set to double-decker, it comprises external splint and inner splint (not shown), inbuilt steel tube frame between external splint and inner splint, the brandreth that assembling is formed fixed by the such as steel pipe of diameter 18mm, makes rack 100 entirety more firm like this; And between steel pipe frame and described external splint, be provided with the cotton (not shown) of moistureproof antidetonation, like this, rack is made to have good anti-seismic performance, and there is good protection against the tide, rainproof function, the various distinct devices being conducive to loading in rack 100 are carried between varying environment, prevent multimedia system 10 from breaking down because carrying back and forth in outdoor environment.In the housing of rack 100, for the formation of the high strength green black colour PLASTIC LAMINATED that double-deck external splint preferably adopts 9mm thick, the corner of external splint or edge are surrounded by high-strength aluminum alloy bound edge, make the overall appearance of rack 100 generous.
The filling structure (not shown) for loading the equipment such as display 11, song-order machine 12, Digital Television broadcasting machine 13, audio frequency and video switching controls center 14, power management module 15 of the inside setting of rack 100, filling structure can carry out corresponding design according to the concrete shape of equipment, size etc.
The bottom of rack 100; also be bottom block; be provided with universal wheel 193; the quantity of universal wheel 193 can be, but not limited to be 4; preferably; universal wheel 193 adopts special high strength steel riveted construction; the tire tread material of its wheel can be, but not limited to as Du Pont PU; thus have high resilience, high wear resistance, quiet, protection ground, operate brisk feature; the mounting means of universal wheel 193 is for structure of stopping (to be also; chassis has in four universal wheels, and the universal wheel of two diagonal positions is equipped with brake structure device).
In this embodiment, the song-order machine 12 of multimedia system 10 is arranged on the inside of rack 100, its also can for other for provide Kara OK function etc. the device of similar song-order machine, song-order machine 12 is built-in with memory module, and it is at least for storing song related content.Alternatively, this memory module can be arranged on to plug in song-order machine 12, like this, if need to upgrade the content stored in memory module, this memory module can be extracted, be accessed other computers outside, from managing the content of its memory module and/or upgrading, further, preferably, memory module operationally carries out content update by the network of access.The concrete storage media types of memory module, memory capacity and/or storage song content etc. are not restrictive.
The IO parts of song-order machine 12 can be realized by the virtual key of the display 11 of touch-screen in this embodiment, thus when multimedia system 10 is operated in karaoke mode, can control it conveniently by the touch-screen of display 10, such as carry out requesting a song, cutting the operations such as song, Consumer's Experience is good, directly perceived, operability is good.Preferably, song-order machine 12 can be configured with global function function of infrared remote control, when multimedia system 10 is operated in karaoke mode, also can realize the control operation to song-order machine 12 by the remote controller of multimedia system 10, such as, carry out requesting a song, cutting the operations such as song.The voice input module of song-order machine 12 can be, but not limited to as W202R/TH wireless microphone system, and it is configured with one or more microphone 121, and certainly, the voice input module of song-order machine 12 also can be wire microphone system.
In this embodiment, the Digital Television of multimedia system 10 is play machine 13 and is also arranged in rack 100, to support video playback capability, it will be appreciated that, according to concrete video playback demand, also the video play device of other types can be selected to carry out Alternative digital electronics player 13 as video playback module 13, such as, the video disc playing device of DVD, Apparatus for video CD.The I/O device that Digital Television plays machine 13 can be realized by the virtual key of the touch-screen of display 11 in this embodiment, thus when multimedia system 10 is operated in video play mode, can control it conveniently by the touch-screen of display 10, such as, carry out the operation such as volume adjusting, played in full screen.Preferably, Digital Television is play machine 13 and is configured with global function function of infrared remote control, when multimedia system 10 is operated in video play mode, also can realize the control operation to video playback module 13 by the remote controller of multimedia system 10.
In this embodiment, the power amplification sound box 16 of multimedia system 10 also can by concentrated loads in rack 100, and power amplification sound box 16 is preferably active audio amplifier.Accordingly, power amplification sound box 16 is configured with support, in use, takes out power amplification sound box 16 and to use support to prop fixing from rack 100.Therefore, preferably, the corresponding support box 17 being provided with the support for putting power amplification sound box in rack 100.
In this embodiment, the power management module 15 of multimedia system 10 is for the unified power supply supply controlled display 11, song-order machine 12, Digital Television broadcasting machine 13, audio frequency and video switching controls center 14.Power management module 15 plays machine 13 with display 11, song-order machine 12, Digital Television respectively, audio frequency and video switching controls center 14 is connected.Particularly, alternating current-direct current frequency converter is provided with in power management module 15, it is one or more that the alternating current-direct current frequency converter of this embodiment has in following characteristics: (1) adopts the mode of one-way electric power High Frequency Link inversion, realize accurate pwm pulse and protecting control circuit, effectively improve the efficiency of inversion and the stability of equipment, be conducive to using this multimedia system in the area of alternating voltage instability; (2) inversion efficiency is up to 90%; (3) there is high temperature protection function, such as, automatically shut down higher than when 70 degrees Celsius in its surface temperature; (4) high voltage protection function, such as, turns off when input voltage reaches 16V ± 0.5V; (5) low-voltage warning function, such as input voltage is less than or equal to 10.5V ± 0.5V alarm; (6) under-voltage protection function, such as input voltage turns off less than or equal to during 10V ± 0.5V.When adopting the multiple equipment unification power supply in power management module 15 pairs of racks 100, not only facilitate power management, and power supply wiring can be made more simple, rack 100 is connected with external ac power source by a power interface.
In this embodiment, the display 11 of multimedia system 10 uses the panel display that volume is relatively little, is not only easy to be loaded in rack 100, and easy of rise operation.For being suitable for the complicated environmental condition of open air or field, preferably adopt explosion-proof liquid crystal display, even if like this under relatively-high temperature condition, display 11 also can reliably trouble free service.In a further example, panel display 11 is configured to have hand-written and touch display screen that is erase feature, particularly, hand-written and erasing module is set in the drive circuit of touch display screen, to support pointer hand-written, erase operation on a display screen, like this, outdoor concentrated teaching can be facilitated, given full play to the effect of display 11.
Further, display 11 correspondence is provided with lifting drive 111, and this lifting drive 111 is controllably freely elevated in the short transverse of rack 10 for driving panel display 111; As shown in Fig. 2 to 3, when multimedia system 10 does not use, panel display 111 is basically parallel to the rear plate face of rack and is supported and fixed in rack 100, and lifting drive 111 correspondence of panel display 111 is roughly arranged on the below of rear upper cover 103b; When using multimedia system 10, when also namely using display 11, upwards can be risen in the short transverse of rack 10 by lifting drive 111 driving display 11, can certainly descending motion.The height of concrete rising can adjust lifting height according to the concrete needs that use, thus the convenient adjustment of display screen height, and, also display 111 also very convenient concentrated loads.Particularly, lifting drive 111 adopts accurate worm-and-wheel gear to drive the accurate screw drive of nested type, has low noise, single-chip microcomputer precise hard_drawn tuhes stroke, automatically eliminates the feature of the journey error caused because of load variations.
In this embodiment, the audio frequency and video switching controls center 14 of multimedia system 10, audio frequency and video switching controls center 14 is at least play machine 13 with display 11, song-order machine 12, Digital Television and is connected, and be configured to control multimedia system 10 be switchably operated in karaoke mode or video play mode.The operation principle particularly at audio frequency and video switching controls center 14 will further describe below in conjunction with Fig. 4.
Figure 4 shows that the modular structure schematic diagram at audio frequency and video switching controls center embodiment illustrated in fig. 2.In this embodiment, audio frequency and video switching controls center 14 is switchably operated in karaoke mode or video play mode for controlling multimedia system 10, as shown in Figure 4, audio frequency and video switching controls center 14 comprises Audio conversion submodule 141 and video switch submodule 142, Audio conversion submodule 141 at least receives the audio signal playing machine 13 from voice input module (such as microphone 121), song-order machine 12 and Digital Television, and video switch submodule 142 at least receives the vision signal from song-order machine 12, Digital Television broadcasting machine 13; It is to be appreciated that when multimedia system 10 is integrated with other audio or video output equipments, Audio conversion submodule 141 and video switch submodule 142 can also receive audio signal, the vision signal of other types with expanding respectively.
Continue as shown in Figure 4, audio frequency and video switching controls center 14 also comprises A/D converter 144, digital signal processor (DigitalSignalProcesser, DSP) 145 and D/A converter 146, the audio signal that Audio conversion submodule 141 exports is generally analog signal, digital signal is converted at A/D converter 144, and then digital audio and video signals process is carried out in DSP145, such as can be, but not limited to carry out to postpone, frequency division, reverberation, the process such as compression digital signal, prevent the audio signal distortion exported; The digital audio and video signals that DSP145 exports is converted to simulated audio signal in D/A converter 146, and then exports power amplification sound box 16 to.
Continue as shown in Figure 4, audio frequency and video switching controls center 14 is also provided with main control-processing unit (MCU) 143, MCU143 for controlling the work of Audio conversion submodule 141, video switch submodule 142 and DSP145, MCU143 mono-aspect can receive the instruction of the input equipment such as remote controller, keyboard, the instruction that can also receive the display 11 of touch-screen on the other hand inputs and controls the display of display 11, controls the work of Audio conversion submodule 141, video switch submodule 142 and DSP145 in MCU after carrying out instruction process, such as, user press on audio frequency and video switching controls center 14 arrange switching key (its also can on a remote control or on display 11 arrange) Audio conversion key time, the enable Audio conversion submodule 141 of MCU, video switch submodule 142 and DSP145, Audio conversion submodule 141 is made selectively to export audio signal from voice input module 15 and song-order machine 12, and shield the audio signal output that Digital Television plays machine 13, simultaneously, video switch submodule 142 is made selectively to export vision signal (if there is) from song-order machine 12, and the vision signal that shielding plays machine 13 from Digital Television exports, DSP145 is also carried out digital audio processing process by MCU143 is enable, user press on audio frequency and video switching controls center 14 arrange video switch key (its can arrange on a remote control or on display 11) time, the enable Audio conversion submodule 141 of MCU143, video switch submodule 142 and DSP145, make Audio conversion submodule 141 selectively export the audio signal from Digital Television broadcasting machine 13 and shield the audio signal output of song-order machine 12, meanwhile, video switch submodule 142 selectively exports the vision signal from Digital Television broadcasting machine 13 and shields the vision signal output (if there is) from song-order machine 12.
Video switch submodule 142 selects the vision signal exported to show on display 11, also can export the video output interface of multimedia system 10 to, realize video playback capability by outside other display equipment.
Continue as shown in Figure 2, be also provided with receiver 18 in rack 100, it may be used for being placed in by the parts such as remote controller, wiring in this receiver 18, easy to use, carrying.
In other embodiments another, power amplification sound box 16 is seated in the audio amplifier storage box of the inner filling structure of rack 100, bottom in audio amplifier storage box is provided with transmission guide rail, power amplification sound box 100 can be seated on this transmission guide rail and also move relative to audio amplifier storage box, like this, power amplification sound box 16 take out of with load very convenient.
The multimedia system 10 of embodiment in use as shown in Figure 2, open protecgulum 101, rear upper cover 103b, from rack 16, take out of power amplification sound box 16, support etc., control display 11 and upwards rise to certain altitude, then carry out simple wiring connection, achieve multimedia entertainment system fast construction; In the process used, can the mode of operation of a key switching multi-media system 10, easy to operate; When activity end, this multimedia system can be packed up rapidly equally, and carry very convenient, not affect the reliability of equipment.And, the employing of this multimedia system is totally digitilized, feature operation is easy, interface hommization, there is shockproof, moistureproof and rainproof feature, the functions such as TV programme is play, Karaoke requesting song, movie and video programs broadcasting, multimedia teaching can be integrated, can easily realize powerful multimedia function out of doors.Multimedia system 10 is applicable to the open air of army under the condition such as manoeuvre and outer instruction or field studies especially, such as, carry out political education, publicity and mobilization, emergency meeting, army's culture performance etc., be very beneficial for carrying out of culture joy religion activity, enrich the culture life of officers and men when manoeuvre and outer instruction.
Will appreciate that, herein, " on ", the directional terminology such as D score, "front", "rear" defines relative to the orientation of the rack of multimedia system in accompanying drawing, these directional terminology are relative concepts, they for relative to description and clarification, it can control to be the change in orientation that place according to audio frequency and video and correspondingly change.
It should be noted that, in this article, when it is said parts " connection " or " coupling " to another parts, it can be directly connected or coupled to another parts maybe can exist intermediate member.
Above example mainly describes the outdoor multimedia system of flow-type of the present invention.Although be only described some of them embodiments of the present invention, those of ordinary skill in the art should understand, and the present invention can implement with other forms many not departing from its purport and scope.Therefore, the example shown and execution mode are regarded as illustrative and not restrictive, when do not depart from as appended each claim define the present invention spirit and scope, the present invention may contain various amendments and replacement.
Claims (16)
1. the outdoor multimedia system (10) of flow-type, comprise rack (100), it is characterized in that, also comprise the requesting song module (12) that can intensively be arranged in rack, video playback module (13), power management module (15), audio frequency and video switching controls module (14), the panel display (11) of Liftable type and power amplification sound box (16);
Wherein, described panel display (11) correspondence is provided with lifting drive (111), and this lifting drive (111) is controllably freely elevated in the short transverse of described rack for driving described panel display (11);
Described power management module (15) is for the unified power supply supply controlled described panel display (11), requesting song module (12), video playback module (13), audio frequency and video switching controls module (14);
Described audio frequency and video switching controls module (14) is at least connected (13) with described requesting song module (12) and video playback module respectively, and is configured to control described multimedia system (10) and is switchably operated in karaoke mode or video play mode.
2. the outdoor multimedia system (10) of flow-type as claimed in claim 1, it is characterized in that, the housing of described rack (100) is set to the double-decker comprising external splint and inner splint, inbuilt steel tube frame between described external splint and inner splint, is provided with moistureproof antidetonation cotton between described steel pipe frame and described external splint.
3. the outdoor multimedia system (10) of flow-type as claimed in claim 1, it is characterized in that, panel display (11) is explosion-proof liquid crystal display.
4. the outdoor multimedia system (10) of flow-type as claimed in claim 1, is characterized in that, panel display (11) is configured to have hand-written and touch display screen that is erase feature.
5. the outdoor multimedia system (10) of flow-type as claimed in claim 1, is characterized in that, described audio frequency and video switching controls module (14) is provided with for the switching key of switch operating in karaoke mode or video play mode.
6. the outdoor multimedia system (10) of flow-type as claimed in claim 1, is characterized in that, described video playback module (13) is Digital Television broadcasting machine.
7. the outdoor multimedia system (10) of flow-type as claimed in claim 1, it is characterized in that, described power management module is provided with alternating current-direct current frequency converter in (15).
8. the outdoor multimedia system (10) of flow-type as claimed in claim 1, it is characterized in that, described power amplification sound box (16) is active audio amplifier.
9. the outdoor multimedia system of the flow-type as described in claim 1 or 8, is characterized in that, being provided with the support box (17) of the support for putting power amplification sound box (16) in described rack (100).
10. the outdoor multimedia system (10) of flow-type as claimed in claim 1, is characterized in that, be provided with receiver (18) in described rack (100).
The outdoor multimedia system (10) of 11. flow-type as claimed in claim 1, it is characterized in that, described power amplification sound box (16) is seated in the audio amplifier storage box of described rack (100), and the bottom in described audio amplifier storage box is provided with transmission guide rail.
The outdoor multimedia system (10) of 12. flow-type as claimed in claim 1, it is characterized in that, the upper cover of described rack comprises front upper cover (103a) and rear upper cover (103b), and described front upper cover (103a) can be opened backward rotatably.
The outdoor multimedia system (10) of 13. flow-type as claimed in claim 1, it is characterized in that, the bottom of described rack (10) is provided with multiple universal wheel (193).
The outdoor multimedia system (10) of 14. flow-types according to any one of claim 1 to 13, it is characterized in that, described audio frequency and video switching controls module (14) comprises
Frequency switch circuit (141);
Video switch circuit (142);
The digital audio and video signals processing unit (145) coupled with described frequency switch circuit (141); And
The main control-processing unit (143) coupled with described frequency switch circuit (141), video switch circuit (142) and digital audio and video signals processing unit (145) respectively;
Wherein, described frequency switch circuit (141) connects requesting song module (12), video playback module (13) to receive from described requesting song module (12) first audio signal and the second audio signal from described video playback module (13), and described video switch circuit (142) connection requesting song module (12) and video playback module (13) are to receive from described requesting song module (12) first vision signal and the second vision signal from described video playback module (13);
The described frequency switch circuit of described main control-processing unit (143) enable control (141) and video switch circuit (142) are switchably operated in karaoke mode or video play mode; Under described karaoke mode, described frequency switch circuit (141) is selected to export described first audio signal to described digital audio and video signals processing unit (145), and described video switch circuit (142) is selected to export described first vision signal; Under described video play mode, described frequency switch circuit (141) is selected to export described second audio signal to described digital audio and video signals processing unit (145), and described video switch circuit (142) is selected to export described second vision signal.
The outdoor multimedia system (10) of 15. flow-type as claimed in claim 14, is characterized in that, be provided with A/D converter (144) between described digital audio and video signals processing unit (145) and described frequency switch circuit (141).
The outdoor multimedia system (10) of 16. flow-type as claimed in claim 15, it is characterized in that, described audio frequency and video switching controls module (14) comprises audio output and video output terminals, is provided with D/A converter (146) between described audio output and described digital audio and video signals processing unit (145).
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| CN201410459996.2A CN105472206A (en) | 2014-09-11 | 2014-09-11 | Mobile type outdoor multimedia system |
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| CN201410459996.2A CN105472206A (en) | 2014-09-11 | 2014-09-11 | Mobile type outdoor multimedia system |
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| CN108200739A (en) * | 2018-03-02 | 2018-06-22 | 电子科技大学中山学院 | Based on big data wisdom building monitored control system |
| CN109192188A (en) * | 2018-09-05 | 2019-01-11 | 厦门轻唱科技有限公司 | K sings system |
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| CN107277587A (en) * | 2017-07-25 | 2017-10-20 | 王振明 | A kind of intelligence open air KTV systems |
| CN108200739A (en) * | 2018-03-02 | 2018-06-22 | 电子科技大学中山学院 | Based on big data wisdom building monitored control system |
| CN108200739B (en) * | 2018-03-02 | 2023-08-15 | 湖北华中电力科技开发有限责任公司 | Intelligent building monitoring system based on big data |
| CN109192188A (en) * | 2018-09-05 | 2019-01-11 | 厦门轻唱科技有限公司 | K sings system |
| CN109192188B (en) * | 2018-09-05 | 2024-04-23 | 厦门巨嗨科技有限公司 | K song system |
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