CN202433718U - Management-free multimedia control system - Google Patents
Management-free multimedia control system Download PDFInfo
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- CN202433718U CN202433718U CN2012200328417U CN201220032841U CN202433718U CN 202433718 U CN202433718 U CN 202433718U CN 2012200328417 U CN2012200328417 U CN 2012200328417U CN 201220032841 U CN201220032841 U CN 201220032841U CN 202433718 U CN202433718 U CN 202433718U
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Abstract
A management-free multimedia control system comprises a wireless microphone, a central controller, a wireless receiver, an active speaker, a projector, a video output device and an electric curtain, wherein the central controller is controlled by the wireless microphone to start up and controls the projector, the video output device, the curtain and other devices. The management-free multimedia control system has the advantages that during use of the management-free multimedia control system, operation of a plurality of devices is decreased for a teacher before class, effective time of a lesson given by the teacher is prolonged, the devices are prevented from being on after class, and unnecessary waste of logistic resources is decreased.
Description
Technical field
The utility model belongs to the transmission system of a kind of control signal and audio-video signal.
Background technology
Multi-media control system is mainly by middle control, sound equipment, and computer, compositions such as projector, central controller is given teaching equipments power supplies such as sound equipment, computer, projector during work, and control projector, computer are opened.Rear-service department of school management for ease; Central controller start mode has the card-scanning type start, key start, network start etc.; These modes mainly still are embodied in a kind of management mode in the handing-over with rear-service department; This pattern still needs the resident personnel to join processings in management, and the person of sending someone is gone maintenance if classroom furniture breaks down also in addition, and this has just caused waste of manpower resource; Sometimes the teacher forgets pass equipment after class, and this also is a this consumptive material of a kind of loss, particularly projection bulb to teaching equipment, but causes the waste of teaching resource.
Summary of the invention
In order to solve the problems referred to above that exist in the prior art, the utility model has been realized a kind of multi-media control system of exempting to manage, and brings a kind of new start mode.
A kind ofly exempt to manage multi-media control system, it is characterized in that comprising wireless microphone, central controller, wireless receiver, active audio amplifier, projector, picture output device and electronic curtain;
Said wireless microphone comprises microphone unit, RCU, wireless launcher and battery, and battery is microphone unit, RCU and wireless launcher power supply; Said RCU comprises button and MCU, and the output terminal of button connects the input end of MCU, and the output terminal of MCU connects the input end of wireless launcher; The audio signal output end of microphone unit connects the input end of wireless launcher through AD conversion unit;
Said central controller comprise MCU, vision signal switching/on-off circuit, sound signal synthetic/commutation circuit and a plurality of power switch; The signal input end of the control signal output ends of MCU connects vision signal switching/on-off circuit, sound signal respectively synthetic/commutation circuit and each power switch;
The video signal input terminal of vision signal switching/on-off circuit connects the video signal input terminal of each picture output device respectively; The VT of vision signal switching/on-off circuit connects the video signal input terminal of projector;
Sound signal is synthetic/and the audio signal input end of commutation circuit connects the microphone audio output of wireless receiver through digital to analog converter; Sound signal is synthetic/and the audio signal output end of commutation circuit connects the audio signal input end of active audio amplifier;
The power input of each power switch connects civil power, and the power output end of each power switch connects the power input of active audio amplifier, projector, picture output device and electronic curtain respectively;
Control/the data output end of said wireless receiver connects the input end of MCU through serial communication interface circuit.
Said picture output device comprises exhibition booth and computer; The VT of exhibition booth and computer is connected the video signal input terminal of vision signal switching/on-off circuit respectively, and the power input of exhibition booth and computer is connected the power output end of corresponding power switch in the central controller respectively.
The serial line interface of said computer connects the MCU control/data-signal output terminal of central controller through serial communication interface circuit.
The audio signal input end of synthetic/commutation circuit that the audio signal output end of said computer connects sound signal.
Said wireless microphone has a plurality of.Said wireless receiver is the 2.4g wireless receiver, and said wireless launcher is the 2.4g wireless launcher.The video format of each picture output device is the VGA form.
During work, wireless receiver and central controller need a direct power supply, and the central controller start is by wireless microphone control, and the interlock control projection of central controller start back is left, computer is opened, curtain falls and supply power to miscellaneous equipment.Wireless microphone receiver can be joined a plurality of wireless microphones, joins a wireless microphone so can realize each teacher, after teacher's registration is got like this, just can have a microphone.After last class hour teacher gets into the classroom and opens microphone and connect to go up receiver; Central controller meeting Auto Power On, time-delay is opened projection after a period of time (for example 10 seconds), falls curtain; Open computer and supply power to miscellaneous equipment; At this moment just normally teaching of use equipment given a lesson, after class teacher can to close wireless microphone be that the may command central controller cuts out all teaching equipments after break off connecting, time-delay a period of time (for example 3 minutes) back cuts off all devices power supply; Teacher forgets sometimes and closes wireless microphone, be a teacher leave wireless microphone behind one segment distance of classroom can automatic cutout and being connected of receiver, central controller equally also can cut out all devices, the power supply of cut-out all devices.
The invention has the beneficial effects as follows: reduced teacher's many operation of equipment before class in the use of native system, increased the effective time that teacher gives a lesson; Stop the imagination that the equipment of finishing class is not turned off, reduced the waste of not necessary logistical resources.
Description of drawings
Fig. 1 is the principle schematic of originally exempting to manage multi-media control system.
Fig. 2 is the central controller principle schematic.
Fig. 3 is the wireless microphone principle schematic.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present technique scheme is further specified as follows:
A kind ofly exempt to manage multi-media control system, it is characterized in that comprising wireless microphone, central controller, wireless receiver, active audio amplifier, projector, picture output device and electronic curtain;
Said wireless microphone comprises microphone unit, RCU, wireless launcher and battery, and battery is microphone unit, RCU and wireless launcher power supply; Said RCU comprises button and MCU, and the output terminal of button connects the input end of MCU, and the output terminal of MCU connects the input end of wireless launcher; The audio signal output end of microphone unit connects the input end of wireless launcher through AD conversion unit; During concrete the realization, microphone unit, RCU, AD conversion unit and line transmitter all can adopt device commonly used.
Said central controller comprise MCU, vision signal switching/on-off circuit, sound signal synthetic/commutation circuit and a plurality of power switch; The signal input end of the control signal output ends of MCU connects vision signal switching/on-off circuit, sound signal respectively synthetic/commutation circuit and each power switch;
The video signal input terminal of vision signal switching/on-off circuit connects the video signal input terminal of each picture output device respectively; The VT of vision signal switching/on-off circuit connects the video signal input terminal of projector; It is to realize that vision signal switching/on-off circuit can adopt the break-make mode of switch controlled video signal cable.
Sound signal is synthetic/and the audio signal input end of commutation circuit connects the microphone audio output of wireless receiver through digital to analog converter; Sound signal is synthetic/and the audio signal output end of commutation circuit connects the audio signal input end of active audio amplifier; Sound signal is synthetic/and to adopt the break-make mode of switch controlled audio signal wire be to realize to commutation circuit, if for sound signal the synthetic scene that requires is arranged, can adopt numerical control audio frequency synthesis module to realize.
The power input of each power switch connects civil power, and the power output end of each power switch connects the power input of active audio amplifier, projector, picture output device and electronic curtain respectively; Power switch can adopt switching tube to drive the relay mode and realize.
Control/the data output end of said wireless receiver connects the input end of MCU through serial communication interface circuit.
Said picture output device comprises exhibition booth and computer; The VT of exhibition booth and computer is connected the video signal input terminal of vision signal switching/on-off circuit respectively, and the power input of exhibition booth and computer is connected the power output end of corresponding power switch in the central controller respectively.
The serial line interface of said computer connects the MCU control/data-signal output terminal of central controller through serial communication interface circuit.
The audio signal input end of synthetic/commutation circuit that the audio signal output end of said computer connects sound signal.
Said wireless microphone has a plurality of.Said wireless receiver is the 2.4g wireless receiver, and said wireless launcher is the 2.4g wireless launcher.The video format of each picture output device is the VGA form.
The utility model principle of work in use is: before the work, wireless receiver and central controller are in holding state, when wireless microphone is opened; Wireless microphone utilizes between 2.4g wireless technology and the receiver automatically frequently, and the back is triggered receiver and given the central controller starting-up signal through serial (RS232 or USB) communication connections in, and elder generation is to other power devices such as computer, projector after the central controller start; Open computer then, fall curtain, projector is opened in control after general 10 seconds; After waiting each equipment to open fully; Promptly realize the manual operation of exempting from of all devices, at this moment wireless microphone promptly can be used as controller again and use as the microphone usefulness of public address system; Can be used to switch the signal of each equipment and the switching between the audio frequency, can also when seeing the PPT courseware, control its page turning backward forward; After class; When close wireless microphone or wireless microphone leave receiver accept scope the time; Wireless microphone can be given the central controller off signal, and central controller can control and cut out projector and computer, rises curtain; Can delay time then and break off the power supply of all devices in 3 minutes, give the sufficient time heat radiation of projector to safeguard the serviceable life of bulb.
Claims (6)
1. exempt to manage multi-media control system for one kind, it is characterized in that comprising wireless microphone, central controller, wireless receiver, active audio amplifier, projector, picture output device and electronic curtain;
Said wireless microphone comprises microphone unit, RCU, wireless launcher and battery, and battery is microphone unit, RCU and wireless launcher power supply; Said RCU comprises button and MCU, and the output terminal of button connects the input end of MCU, and the output terminal of MCU connects the input end of wireless launcher; The audio signal output end of microphone unit connects the input end of wireless launcher through AD conversion unit;
Said central controller comprise MCU, vision signal switching/on-off circuit, sound signal synthetic/commutation circuit and a plurality of power switch; The signal input end of the control signal output ends of MCU connects vision signal switching/on-off circuit, sound signal respectively synthetic/commutation circuit and each power switch;
The video signal input terminal of vision signal switching/on-off circuit connects the video signal input terminal of each picture output device respectively; The VT of vision signal switching/on-off circuit connects the video signal input terminal of projector;
Sound signal is synthetic/and the audio signal input end of commutation circuit connects the microphone audio output of wireless receiver through digital to analog converter; Sound signal is synthetic/and the audio signal output end of commutation circuit connects the audio signal input end of active audio amplifier;
The power input of each power switch connects civil power, and the power output end of each power switch connects the power input of active audio amplifier, projector, picture output device and electronic curtain respectively;
Control/the data output end of said wireless receiver connects the input end of MCU through serial communication interface circuit.
2. according to claim 1ly exempt to manage multi-media control system, it is characterized in that said picture output device comprises exhibition booth and computer; The VT of exhibition booth and computer is connected the video signal input terminal of vision signal switching/on-off circuit respectively, and the power input of exhibition booth and computer is connected the power output end of corresponding power switch in the central controller respectively.
3. according to claim 2ly exempt to manage multi-media control system, it is characterized in that the serial line interface of said computer connects the MCU control/data-signal output terminal of central controller through serial communication interface circuit.
4. describedly exempt to manage multi-media control system according to claim 2 or 3, the audio signal input end of synthetic/commutation circuit that the audio signal output end that it is characterized in that said computer connects sound signal.
5. according to claim 1ly exempt to manage multi-media control system, it is a plurality of to it is characterized in that said wireless microphone has.
6. according to claim 1ly exempt to manage multi-media control system, it is characterized in that said wireless receiver is the 2.4g wireless receiver, said wireless launcher is the 2.4g wireless launcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200328417U CN202433718U (en) | 2012-02-02 | 2012-02-02 | Management-free multimedia control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200328417U CN202433718U (en) | 2012-02-02 | 2012-02-02 | Management-free multimedia control system |
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| Publication Number | Publication Date |
|---|---|
| CN202433718U true CN202433718U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200328417U Expired - Lifetime CN202433718U (en) | 2012-02-02 | 2012-02-02 | Management-free multimedia control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202433718U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198845A (en) * | 2013-04-23 | 2013-07-10 | 浙江大丰实业有限公司 | Stage sound play control system |
| CN105554598A (en) * | 2015-12-14 | 2016-05-04 | 恩平市亿歌电子有限公司 | Automatic frequency-matching multi-channel wireless microphone system and working method thereof |
| CN106341633A (en) * | 2015-07-08 | 2017-01-18 | 许崇良 | Intelligent multimedia equipment control method and system |
| CN109298691A (en) * | 2018-09-25 | 2019-02-01 | 锐达互动科技股份有限公司 | A kind of teaching equipment management method |
| CN113777949A (en) * | 2021-11-10 | 2021-12-10 | 湖南新云网科技有限公司 | Classroom intelligent control energy-saving method, device, equipment and readable storage medium |
-
2012
- 2012-02-02 CN CN2012200328417U patent/CN202433718U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198845A (en) * | 2013-04-23 | 2013-07-10 | 浙江大丰实业有限公司 | Stage sound play control system |
| CN106341633A (en) * | 2015-07-08 | 2017-01-18 | 许崇良 | Intelligent multimedia equipment control method and system |
| CN106341633B (en) * | 2015-07-08 | 2019-02-22 | 许崇良 | A kind of intelligent multimedia apparatus control method, system |
| CN105554598A (en) * | 2015-12-14 | 2016-05-04 | 恩平市亿歌电子有限公司 | Automatic frequency-matching multi-channel wireless microphone system and working method thereof |
| CN109298691A (en) * | 2018-09-25 | 2019-02-01 | 锐达互动科技股份有限公司 | A kind of teaching equipment management method |
| CN113777949A (en) * | 2021-11-10 | 2021-12-10 | 湖南新云网科技有限公司 | Classroom intelligent control energy-saving method, device, equipment and readable storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
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| CX01 | Expiry of patent term |