CN103576846A - Wireless projection system - Google Patents
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- CN103576846A CN103576846A CN201210282115.5A CN201210282115A CN103576846A CN 103576846 A CN103576846 A CN 103576846A CN 201210282115 A CN201210282115 A CN 201210282115A CN 103576846 A CN103576846 A CN 103576846A
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Abstract
The invention provides a wireless projection system, comprising a main control unit, a projection module, a wireless communication module, a file storage module and a gesture identification module; the wireless communication module is connected with the main control unit and is used for receiving data available for projection by a wireless network; the file storage module is connected with the main control unit and is used for storing the data available for projection; the gesture identification module comprises a camera module and is used for identifying the gesture of a user and converting into a corresponding operation command; the main control unit is connected with the gesture identification module and operates the projection system according to the operation command. The wireless communication module comprises a wide area network wireless communication module and/or a WI-FI (wireless fidelity) wireless communication module supporting a WI-FI direct connection protocol. The projection system is based on the interaction control mode of a gesture identification technology, and is combined with a wide area network/WI-FI wireless communication technology, so the user can conveniently use and the defect of difficult synchronous display of documents encountered in the training of a remote video teleconference is overcome.
Description
Technical field
The present invention relates to optical projection system, relate in particular to a kind of optical projection system that can support wireless connections.
Background technology
Tradition optical projection system connects host computer by cable, and relevant data are transferred to optical projection system by cable from host computer.User will be subject to the very big restriction of line when using wired projector, on projector, carry out Real time data share very complicated thing especially.Such as: be similar to roundtable conference and interactive discussion, lecture or classroom etc. occasion, different speakers' data are all stored in different notebook computers, at the notebook computer of having to again and again change of when demonstration speech in turn, this just needs reconnection projector.
In addition,, in presentation process, user will keep carrying out alternately, could successfully completing relevant demonstration with host computer.Traditional interactive mode is to be undertaken alternately by the keyboard of host computer and mouse.This kind of interactive mode is unfavorable for demonstrator's performance.
A kind of improved interactive mode is, the additional wireless receiver of installing of host computer, and user can for example, by the telepilot wireless signal emission (infrared or bluetooth) in hand, and the wireless receiver of host computer is controlled project content according to relevant signal.This scheme need to arrange host computer, is inconvenient to use equally.
Therefore, need a kind of improved optical projection system badly.
Summary of the invention
An aspect of of the present present invention provides a kind of optical projection system, comprises main control unit, projection module, wireless communication module, file storage module, gesture identification module.Wherein, described wireless communication module is connected with main control unit, and by wireless network, receiving can be for the data of projection.Described file storage module is connected with main control unit, for storing with process can be for the data of projection.Described gesture identification module comprises camera module, for identifying user's gesture and converting corresponding operational order to.Described main control unit is connected with gesture identification module, according to described operational order, operates described optical projection system.
In a preferred version of the present invention, described wireless communication module comprises the WI-FI wireless communication module of supporting the direct-connected agreement of WI-FI.
In a preferred version of the present invention, described optical projection system also has decompression module, and described decompression module is connected with main control unit, for the data of described WI-FI wireless communication module transmission are compressed or decompressed.
In a preferred version of the present invention, described wireless communication module comprises wide area network wireless communication module.
In a preferred version of the present invention, described optical projection system also comprises interface conversion circuit, and described interface conversion circuit is connected with main control unit, for realizing the conversion of USB interface, MHL interface, HDMI interface.
In a preferred version of the present invention, described projection module is wireless display module, is connected with main control unit, and described wireless display module has detecting unit for optical projection system being switched to wireless display pattern or external projection mode.
In a preferred version of the present invention, described optical projection system also comprises key-press module, and described case module is connected with main control unit, is same as by the operation of optical projection system described in button operation.
In a preferred version of the present invention, described optical projection system also comprises external storage equipment module, and described external storage equipment interface module is connected with main control unit, for connecting External memory equipment; Described file storage module and the communication connection of described external storage equipment interface module, for reading and the data of processing described external storage device stores.
In a preferred version of the present invention, described optical projection system comprises and battery module and power management module, and described power management module is connected with main control unit for disposition and management electric power to be supported, described battery module is connected with described power management module.
In a preferred version of the present invention, described main control unit, projection module, wireless communication module, file storage module and gesture identification module integration are to same circuit board.
The optical projection system that preferred version of the present invention provides, mutual control model based on camera Gesture Recognition, while having avoided many people to operate projector, need constantly to adjust the drawback of seat or fixed seating, really accomplished everyone, in every nook and cranny, can discuss in real time and make a speech by projection, promoted interactive efficiency, convenient and swift.In addition, in conjunction with wide area network/WI-FI wireless communication technology Ke Yi Ni, mend the deficiency that the document running in long-distance video teleconference training is not easy simultaneous display, really accomplish to net interior equipment strange land synchronous demonstrating and projector equipment Real-Time Sharing and show, realize place and disperse but the unified perfect condition of content focus.
[accompanying drawing explanation]
Fig. 1 is wireless projection system logical organization schematic diagram;
Fig. 2 is the whole networking structure schematic diagram of wireless projection system;
Fig. 3 is WI-FI direct mode networking structure schematic diagram;
Fig. 4 is the wireless local net mode networking structure schematic diagram based on WI-FI AP;
Fig. 5 is wide area network radio communication remote mode networking structure schematic diagram;
Fig. 6 is non-networking mode wireless projection system structural representation.
[embodiment]
Elaborate working method of the present invention below.
Consult Fig. 1, the wireless projection system that one embodiment of the invention provides comprises USB/MHL/HDMI conversion interface module 1, battery module 2, power management module 3, wireless display module 4, CPU central processing module 5, gesture identification module 6, key-press module 7, wireless communication module, file storage module 9, external storage equipment interface module 11 etc.Should recognize, except projection module 4, main control unit 5, gesture identification module 6, file storage module 9 and wireless communication module, other functional module is all optional, can to each functional module, carry out cutting and configuration according to concrete demand.Wherein, wireless communication module can be WI-FI wireless communication module 8 and/or wide area network wireless communication module 10.
Except battery module 2 is for external by battery interface, other functional modules all can integrated design on a PCBA circuit board.The antenna of WI-FI wireless communication module 8 antennas and wide area network wireless communication module 10 is all placed on the shell of wireless projection system, connected by antenna contacts separately.The shell design of wireless projection system can be according to user's demand designed, designed, and principle of design is that the camera of gesture identification module and the camera lens of wireless display module need to keep front and rear relation, refers in the opposite direction simultaneously.This wireless projection system can comprise dismountable 3 foot supports, and the angle that support is used for adjusting optical projection system is to facilitate desktop portable projection.
CPU central processing module 5 in wireless projection system, as main control unit, is responsible for mutual control and data communication between each functional module of whole optical projection system.Other modules are by EBI(external bus interface) bus is connected with CPU central processing module.This main control unit is controlled and scheduling of resource unit as the core of wireless projection system, realizes the communication between each EM equipment module really and mutual.
USB(USB (universal serial bus))/MHL(mobile high definition interconnection technique)/HDMI(HDMI) conversion interface module 1 is connected with main control unit, by the design of interface conversion circuit, realize the conversion of USB interface and MHL interface, support the projector equipment of external MHL or HDMI interface or display device to carry out projection or demonstration.When the projector equipment of connection HDMI interface or display device, the data line that turns HDMI interface by MHL connects.This module support connects computer with crossing USB interface, realizes mobile storage hard disk function, thereby has expanded the use scenes of extending user.
Battery module 2 can be supported external connection battery or internal battery, for providing electric power to optical projection system.
Power management module 3 is connected with battery module 2, main control unit, is responsible for electric power support and the configuration management of whole wireless projection system.Support by data line or the Charge Management of charger to external connection battery of USB interface.
Gesture identification module 6 is connected with main control unit, comprises camera module and and gesture identification software module.Camera module exists with individual module device form, by the PCBA(circuit board of wireless projection system) utilizing camera interface access on mainboard.This module is supported the camera function of camera.Camera function is supported common exposal model and hand gesture recognition mode two states.Under hand gesture recognition mode, the camera frame per second of taking pictures can reach 24 FPS, to guarantee the accuracy rate of gesture identification.After wireless projection system starts, under default situations, camera module enters hand gesture recognition mode automatically, when user carries out gesture operation, camera can be by taking pictures and picture processing fast, identification user's gesture motion, and escape becomes general menu operation order, carries out corresponding menu operation.User can close gesture identification function by menu operation.User also can be switched to common exposal model by menu operation, takes pictures.
In the present embodiment, the action of gesture identification and menu operation mapping relations are as following table:
| gesture motion | corresponding menu operation example | remarks |
| to left/right is unidirectional, wave | switch lantern slide/picture/enter next stage menu // return previous menu/change screen | different directions can have different definition, but will keep the consistance of gesture menu operation definition. |
| upwards/lower unidirectional waving | switching menu focus/enter next stage menu/return previous menu | different directions can have different definition, but will keep the consistance of gesture menu operation definition. |
| double swerve | release applies/cancels/refuse a certain operation | different directions can have different definition, but will keep the consistance of gesture menu operation definition. |
| pat | select/cancel operation, start a certain function or application. | ? |
| put one's palms together devoutly | open or close equipment/start a certain function or application. | ? |
| gesture cursor is followed | cursor is followed, and highlighted demonstration stops after two seconds and chooses, | ? |
| recognition of face | the current control of locking device people/information security | ? |
Should recognize: the gesture operation of this mapping table statement is one of case study on implementation of the present invention, and gesture involved in the present invention is not restricted to from menu operation definition the menu operation that table, example illustrates.Any other relevant gesture operation all can derive from mapping table, explanation hereby.
Key-press module 7 is connected with main control unit, comprises power key, 4 directionkeys and selection/cancellation function key up and down, and button operation wireless projection system interface is provided.
WI-FI wireless communication module 8 is connected with main control unit, comprises and receiving and transmitting RF processing unit, configuration management element and WI-FI antenna.Radio frequency unit is responsible for the radiofrequency signal of WI-FI module and the reception of information and transmitting, realizes the network interconnection and the data interaction of WI-FI equipment room.The configuration management of configuration management element realization to Wi-Fi module, can be set to AP focus pattern or WI-FI Direct(WI-FI is direct-connected) pattern removal search equipment or networking.WI-FI antenna is communicated by letter with radio frequency unit by antenna contacts, is placed on the shell of wireless projection system.Described WI-FI wireless communication module transmits and receives WI-FI wireless lan signal, realizes configuration and the management of WI-FI wireless module.User can realize the WLAN (wireless local area network) networking pattern of Ap+ wireless network card pattern by this module, realize the data sharing storage of WLAN (wireless local area network) scope, meets the distributed projection demand within the scope of LAN (Local Area Network).The point-to-point ad-hoc mode that user also can realize based on WI-FI Direct interface protocol by this module connects.Between wide area network wireless communication module and WI-FI wireless local area network communications module, can switch.
In addition, this wireless projection system also has decompression module, described decompression module is connected with main control unit, for the data of described WI-FI wireless communication module transmission are compressed or are decompressed, realize the WI-FI Display algorithm of the high speed compression transmission of multimedia messages, effectively promote real-time and the continuity of real-time multimedia information.
Wide area network wireless communication module 10 is connected with main control unit, comprises and receiving and transmitting RF processing unit, configuration management element, wide area network antenna and Sim card unit.Radio frequency unit is responsible for the radiofrequency signal of wide area network wireless communication module and the reception of information and transmitting, realizes the network interconnection and data interaction between WAN equipment.Configuration management element realizes the configuration management to wide area network wireless communication module, the selection of network enabled standard and parameter configuration.Wide area network antenna is communicated by letter with radio frequency unit by antenna contacts, is placed on the shell of wireless projection system.SIM card unit contains Sim draw-in groove, supports wide area network interface card, to realize the radio communication function of WAN network.Do not need this module of WAN network of Sim card to reduce.Wide area network antenna is communicated by letter with radio frequency unit by antenna contacts, is placed on the shell of wireless projection system.The standard of wide area network radio communication can comprise GSM/WCDMA/CDMA/TD-SCDMA/WiMax, but is not limited to these standards.In other words, wide area network wireless communication module 10 can be realized communication or the configuration of the multiple carrier network communication standards such as GSM, CDMA, WCDMA, TD-SCDMA, WiMax.User can be configured or cutting the module of radio communication according to actual demand.User can select to support to work under one or both or two or more communication standard simultaneously.By this module, can realize user's long-range data sharing and store, meet long distance wireless projection demand.
Therefore, wireless projection system that the present embodiment provides supports wide area network wireless network to realize remote projection and menu operation, also supports freely switching of wide area network, WI-FI, tri-kinds of wireless connections of WI-FI direct; Support, by key control and two kinds of operator schemes of gesture identification, can coexist and freely switch, be independent of each other.
Therefore, the wireless projection system that the present embodiment provides is supported external storage equipment, realizes projection and the operation of local file; Also support the file storage of remote equipment, shared and projection.
The wireless projection system that the present embodiment provides, mutual control model based on camera Gesture Recognition, while having avoided many people to operate projector, need constantly to adjust the drawback of seat or fixed seating, really accomplished everyone, in every nook and cranny, can discuss in real time and make a speech by projection, promoted interactive efficiency, convenient and swift.
In addition, the present invention can be according to different application scenarioss, by common intelligent terminal, just can realize different wireless networking modes and mutual control mode, convenient, flexible, powerful, extendability is strong, inherent defect and deficiency that the Hao Ni of has mended conventional wireless projector very much.
The client software that the present invention is directed to wireless projection system design realization has been realized seamless binding and the interconnection of common smart mobile phone.In conjunction with wide area network/WI-FI wireless communication technology Ke Yi Ni, mend the deficiency that the document running in long-distance video teleconference training is not easy simultaneous display simultaneously, really accomplish to net interior equipment strange land synchronous demonstrating and projector equipment Real-Time Sharing and show, realize place and disperse but the unified perfect condition of content focus.
The pattern of the projection module of the integrated VGA/RGB interface of the present invention and the USB conversion external projector equipment of MHL/HDMI Interface realization or display device is convenient, flexible, and Scalability is strong, can meet the user's of various application scenarioss and appointed condition demand.
Consult Fig. 2, the whole networking structure schematic diagram of the wireless projection system of the present invention's design.
The networking of the wireless projection system of the present invention design comprises that the point-to-point ad-hoc mode based on WI-FI Direct technical standard is interconnected, wide area network radio communication remote projection, WI-FI focus+wireless network card sets up WLAN (wireless local area network) and four kinds of modes are independently used in non-networking.Wireless projection system can be realized and common intelligent terminal or with the interconnected binding between the computing machine of respective wire card apparatus by above-mentioned four kinds of modes.Various networking modes can freely switch according to user's demand.
After the client software that need to develop for wireless projection system of the present invention specially in installation with intelligent terminal or other equipment of wireless projection system networking, just can realize remote interaction control, data sharing storage and wireless display function to wireless projection system.
The bottleneck problem that wireless display exists is at present that the bandwidth of WI-FI agreement cannot meet the data transmission demand that real-time multimedia is play completely.For the problems referred to above, the present invention designs and has realized efficient video compress transmission algorithm the transmission of real-time multimedia is optimized.
The projection pattern of the wireless projection system of the present invention's design comprises projector equipment or two kinds of modes of display device of VGA/RGB portable projection and external HDMI interface.Be defaulted as portable projection mode, user can select external projector equipment or display device mode.User can select to support two kinds of projection patterns whether simultaneously, realizes portable projection and external Projective Synchronization and shows.
The wireless projection system menu control of the present invention's design comprises by key control and two kinds of modes of gesture identification.Two kinds of control modes can phase trans-substitutions and are coexisted.Gesture motion and standard menu operational correspondence relationship description: the corresponding upper key of upwards waving, the lower key of the correspondence of waving downwards, the corresponding left button of waving left, the corresponding right button of waving to the right, pat corresponding function key (options button/return key/cancel key), gesture cursor is followed corresponding mouse action, the operational correspondence power switch key of putting one's palms together devoutly.
Below the use scenes of the wireless projection system of the present invention's design is described respectively:
Consult Fig. 3, the WI-FI Direct mode networking structure schematic diagram of the wireless projection system of the present invention's design.
WI-FI direct networking can provide between a kind of simpler and computing machine/intelligent terminal and realize point-to-point wireless interconnected method, and this networking mode of while also can meet user cannot provide the devices interconnect under the condition of WI-FI Access Point.
Common intelligent terminal or other equipment of the client software of designing and developing for wireless projection system have been installed and in WI-FI Direct mode, have been realized after the interconnected binding of same wireless projection system, can realize the point-to-point of wireless projection system controlled and projection.User can carry out synchro control to wireless projection system by gesture identification mode.Under this mode, can realize the transmission of point-to-point video data, the continuity of transmission better, postpone less.
Consult Fig. 4, the wireless projection system of the present invention design based on WI-FI Access Point(access point) wireless local net mode networking structure schematic diagram.
The networking mode of WI-FI WLAN (wireless local area network) can meet 300 meters of scopes with interior distributed wireless projection demand.This projection pattern is convenient, flexible.The common intelligent terminal that the client software of designing and developing for wireless projection system has been installed can be interconnected with the binding of wireless projection system by being set to focus realization arbitrarily, carries out wireless display operation.An intelligent terminal can be bound a plurality of wireless projection systems simultaneously, realizes the wireless display operation to a plurality of wireless projection systems.
Consult Fig. 5, the WAN network mode networking structure schematic diagram of the present invention's design.
The networking of wide area network communication can meet the demand of the projection of user's long distance wireless and data sharing storage.This networking mode is not subject to distance limit, and the WAN network of operator is almost ubiquitous, can really accomplish that user realizes the binding of same wireless projection system anywhere or anytime interconnected, carries out wireless display and data sharing storage.
Consult Fig. 6, the non-networking mode wireless projection system structural representation of the present invention's design.
Non-networking mode, while using wireless projection system separately, user can pass through external storage equipment.Wireless projection system is the external memory device of identification automatically, and user can realize reading or playing file in external memory devices by button or gesture identification.
Wireless projection system recited above also can connect intelligent terminal or computer equipment by wired mode, realize networking and the projection of wired mode.
Entity/equipment/device/unit that some that occur herein have specific names can replace with the entity/equipment/device/unit with identical or similar functions equally, repeats no more.
For the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an optical projection system, comprises main control unit and projection module, it is characterized in that, described optical projection system also comprises:
Wireless communication module, described wireless communication module is connected with main control unit, and by wireless network, receiving can be for the data of projection;
File storage module, described file storage module is connected with main control unit, for storing with process can be for the data of projection;
Gesture identification module, described gesture identification module comprises camera module, for identifying user's gesture and converting corresponding operational order to; Described main control unit is connected with gesture identification module, according to described operational order, operates described optical projection system.
2. optical projection system according to claim 1, is characterized in that, described wireless communication module comprises the WI-FI wireless communication module of supporting the direct-connected agreement of WI-FI.
3. optical projection system according to claim 2, is characterized in that, described optical projection system also has decompression module, and described decompression module is connected with main control unit, for the data of described WI-FI wireless communication module transmission are compressed or decompressed.
4. optical projection system according to claim 2, is characterized in that, described wireless communication module comprises wide area network wireless communication module.
5. optical projection system according to claim 2, is characterized in that, described optical projection system also comprises interface conversion circuit, and described interface conversion circuit is connected with main control unit, for realizing the conversion of USB interface, MHL interface, HDMI interface.
6. optical projection system according to claim 2, is characterized in that, described projection module is wireless display module, is connected with main control unit, has detecting unit for optical projection system being switched to wireless display pattern or external projection mode.
7. optical projection system according to claim 2, is characterized in that, described optical projection system also comprises key-press module, and described case module is connected with main control unit, is same as by the operation of optical projection system described in button operation.
8. optical projection system according to claim 2, is characterized in that:
Described optical projection system also comprises external storage equipment module, and described external storage equipment interface module is connected with main control unit, for connecting External memory equipment;
Described file storage module and the communication connection of described external storage equipment interface module, for reading and the data of processing described external storage device stores.
9. according to the optical projection system described in any one in claim 1 to 8, it is characterized in that, described optical projection system comprises and battery module and power management module, described power management module is connected with main control unit for disposition and management electric power to be supported, described battery module is connected with described power management module.
10. optical projection system according to claim 9, is characterized in that, described main control unit, projection module, wireless communication module, file storage module and gesture identification module integration are to same circuit board.
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| CN106605422A (en) * | 2014-08-29 | 2017-04-26 | 日立麦克赛尔株式会社 | Communication system, communication device, and communication terminal device |
| CN106605422B (en) * | 2014-08-29 | 2020-08-28 | 麦克赛尔株式会社 | Communication system, communication device and communication terminal device |
| CN104284120A (en) * | 2014-09-24 | 2015-01-14 | 苏州合欣美电子科技有限公司 | Intelligent projection system based on projector |
| CN104777991B (en) * | 2015-04-22 | 2019-03-29 | 深圳市华拓科技有限公司 | A kind of remote interaction optical projection system based on mobile phone |
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| CN106528017A (en) * | 2016-10-31 | 2017-03-22 | 努比亚技术有限公司 | Information processing method and terminal |
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Application publication date: 20140212 |