CN100495464C - Digital TV set remote-controller based on bluetooth - Google Patents
Digital TV set remote-controller based on bluetooth Download PDFInfo
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- CN100495464C CN100495464C CNB200710041444XA CN200710041444A CN100495464C CN 100495464 C CN100495464 C CN 100495464C CN B200710041444X A CNB200710041444X A CN B200710041444XA CN 200710041444 A CN200710041444 A CN 200710041444A CN 100495464 C CN100495464 C CN 100495464C
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Abstract
This invention discloses a digital TV remote controller and a method based on blue-tooth, in which, the remote controller includes: IR chip, a read-write interface module of storage cards, a blue-tooth chip receiving connection request of the TV set and audio signals of the blue-tooth and receiving data got by a micro-controller and transmitting them to the TV set, a micro-controller including a blue-tooth protocol stack unit set up in an inserted real time operation system to control data transmission of the blue-tooth chip, a storage card read-write control unit to control read-write of the card, an infrared control unit controlling emission of the IR chip, an audio process unit decoding and outputting blue-tooth audio signals, a decoding unit receiving data in the storage unit and decoding and a play unit playing decoded data.
Description
Technical field
The present invention relates to a kind of telechiric device, relate in particular to the intelligent distant control apparatus of the digital television that is used to have blue tooth interface.
Background technology
Along with the continuous development of blue-tooth technology, its cost is more and more lower, and blue-tooth technology is extensively applied in personal communication field, computer network and the consumer electronics product.The music player telepilot that has occurred multiple sampling Bluetooth technology in the market can be used for each self-corresponding digital entertainment equipment of operated from a distance, to substitute traditional " local control ".
For digital television, traditional telepilot only be by infrared (IR) radiation pattern send control code to digital television to finish the function of controlling Digital Television.Application number is that the application for a patent for invention of 200710036514.2 " the bluetooth Digital Television method and the device that are used for transferring voice " has proposed a kind ofly to realize that at the digital television with embedded real-time operating system the technology of blue tooth voice transmission, application number are that the application for a patent for invention of 200710036515.7 " being used for transmitting the bluetooth Digital Television method and the device of picture " has proposed a kind of Bluetooth wireless transmission and display technique that realizes picture at the digital television with embedded real-time operating system.
Traditional telepilot does not have the bluetooth communication interface, the function that can't be achieved as follows: (1) is set up bluetooth with digital television and is connected the back high-fidelity Bluetooth audio frequency signal that receives and play from televisor; (2) shown on the televisor and play with the picture in the memory device (USB flash disk, SD card, CF card etc.) or music being sent to after digital television is set up bluetooth and is connected, thereby realized the transmitted in both directions of the multi-medium data between blue Tooth remote controller and the televisor.
Summary of the invention
The object of the present invention is to provide a kind of digital TV set remote-controller, made the user move the sound of listening to TV programme by wired stereophone based on bluetooth.
The object of the present invention is to provide another kind of digital TV set remote-controller, the user can be shown by this telepilot the content in the multimedia memory device and play on televisor based on bluetooth.
The object of the present invention is to provide another digital TV set remote-controller based on bluetooth, make the user both can move the sound of listening to TV programme, the content in the multimedia memory device can be shown on televisor by this telepilot and play again by wired stereophone.
Technical scheme of the present invention is: the present invention proposes a kind of digital TV set remote-controller based on bluetooth, receive Bluetooth audio frequency signal and output from digital television, this telepilot comprises:
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Bluetooth chip receives the connection request from digital television, receives the Bluetooth audio frequency signal from digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of this Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The infrared control unit is controlled the emission of this IR chip;
Audio treatment unit is decoded and is exported the Bluetooth audio frequency signal that receives.
Above-mentioned digital TV set remote-controller based on bluetooth, wherein, external earphone of this audio treatment unit or loudspeaker.
The invention allows for a kind of digital TV set remote-controller based on bluetooth, the multi-medium data in this telepilot transfers to digital television, and this telepilot comprises:
Storage card read-write interface module is supported the reading and writing data to the external memory device of this telepilot;
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The storage card read-write control unit is realized the read-write control to storage card;
The infrared control unit is controlled the emission of this IR chip;
Bluetooth chip receives the connection request from digital television, receives the data that obtain from this storage card read-write interface module from this microcontroller and sends it to digital television.
Above-mentioned digital TV set remote-controller based on bluetooth, wherein, this microcontroller also comprises:
Decoding unit receives the data in the memory device, decodes;
Broadcast unit is play the data through this decoding unit decodes.
The present invention has proposed a kind of digital TV set remote-controller based on bluetooth in addition, receives Bluetooth audio frequency signal and output from digital television, simultaneously the multi-medium data in the telepilot is transferred to digital television, and this telepilot comprises:
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Storage card read-write interface module is supported the reading and writing data to the external memory device of this telepilot;
Bluetooth chip receives the connection request from digital television, receives the Bluetooth audio frequency signal from digital television, receives the data that obtain from this storage card read-write interface module from microcontroller and sends it to digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of this Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The storage card read-write control unit is realized the read-write control to storage card;
The infrared control unit is controlled the emission of this IR chip;
Audio treatment unit is decoded and is exported the Bluetooth audio frequency signal that receives;
Decoding unit, the data in the reception memory device are also decoded;
Broadcast unit is play the data through this decoding unit decodes.
Above-mentioned digital TV set remote-controller based on bluetooth, wherein, external earphone of this audio treatment unit or loudspeaker.
The present invention contrasts prior art following beneficial effect: the present invention is by integrated microprocessor and Bluetooth chip in telepilot, control Bluetooth chip by multiple modes such as usb bus, UART, GPIO, memory address mappings, realize that telepilot is connected with bluetooth between the televisor.Integrated multifunction card reader chip in telepilot by the usb bus agreement, is realized the read and write access of mmc card, SD card, memory stick storage cards commonly used such as (memory stick).The present invention realizes bluetooth OBEX agreement by software, supports that picture, the music in storage card or the USB flash disk being browsed and visiting TV set terminal; Realize bluetooth A2DP agreement by software, to support of decoding and the output of High-Quality Digital Television audio frequency at the telepilot end.
Description of drawings
Fig. 1 is the schematic diagram of first embodiment of the digital TV set remote-controller based on bluetooth of the present invention.
Fig. 2 is the operating system nucleus theory diagram with bluetooth protocol repertory.
Fig. 3 is Bluetooth audio frequency mode figure.
Fig. 4 is the schematic diagram of second embodiment of the digital TV set remote-controller based on bluetooth of the present invention.
Fig. 5 is a bluetooth file transfer illustraton of model.
Fig. 6 is the schematic diagram of the 3rd embodiment of the digital TV set remote-controller based on bluetooth of the present invention.
Fig. 7 is the method for attachment synoptic diagram of telepilot of the present invention and digital television.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 shows the principle of first embodiment of the digital TV set remote-controller based on bluetooth of the present invention.See also Fig. 1, telepilot 10 comprises: microcontroller (MCU) 11, IR chip 12 and Bluetooth chip 13, wherein microcontroller 11 further comprises infrared control unit 110, Bluetooth protocol stack cell 111 and audio treatment unit 112.Telepilot 10 in the present embodiment receives from the Bluetooth audio frequency signal of digital television and is exported.
The Bluetooth chip 13 main functions that realize Bluetooth wireless transmission receive the connection request from digital television on the one hand, receive on the one hand and transfer to audio treatment unit 112 from the Bluetooth audio frequency signal of digital television and by the USB standard.Bluetooth protocol stack cell 111 is set up bluetooth protocol repertory in embedded real-time operating system, by bluetooth protocol repertory the data transmission of Bluetooth chip 13 is controlled.
Bluetooth protocol repertory is based on embedded real-time operating system, and position in operating system and ICP/IP protocol stack are similar, belong to operating system nucleus.Operating system nucleus sees also shown in Figure 2, mainly is divided into three layers: system call layer, kernel subsystems layer and bottom hardware drive.System call layer application programs provides system call interfaces, and system call interfaces is direct and kernel subsystems is mutual.Kernel subsystems comprises management of process, memory management, file system, device control and network.Management of process control CPU realizes multi-process and task scheduling, and memory management is by memory manager management system internal memory, the corresponding concrete peripheral hardware of equipment abstract, and network is realized network communication by talk various network protocols Control Network interface.
The intermediate protocol layer that realizes bluetooth protocol repertory comprises logic link control and adapting protocol (L2CAP), service discovery protocol (SDP), Object Exchange (OBEX), audio distribution formula host-host protocol (A2DP), is positioned at the bluetooth module of the software supporting layer of operating system by the driving of HCI interface.Please be simultaneously referring to Bluetooth audio frequency mode shown in Figure 3, logic link control and adapting protocol (L2CAP) they are the parts of data link, are positioned on the baseband protocol.L2CAP provides towards connecting and connectionless data, services to the upper strata, and major function comprises: the cutting apart and recombinate and divide into groups and mention of the multiplexing capacity of agreement, grouping.Service discovery protocol (SDP) is a kind of agreement based on client/server structure, and it provides a kind of service that server provides and mechanism of Service Properties found for the client uses.The attribute of service comprises COS and uses service required mechanism or protocol information.Service log table of server maintenance is described the service characteristic of this server, and the client can ask for information on services by sending a SDP request from the server record table.The OBEX agreement originates from IrOBEXs, and IrOBEXs is the session protocol by the IrDAD definition.The HCI agreement provides a kind of general-purpose interface of visiting the bluetooth hardware ability.The A2DP agreement adopts an isochronous data channel that loads on the L2CAP layer, is the audio/video distribution transport protocol between A2DP and L2CAP, and this protocol layer has defined the transmission mechanism of audio and video stream.On bluetooth module, the HCI firmware is realized the HCI of bluetooth hardware is ordered by the order of visit base band, link management order, hardware status register, control register and event registers.
Fig. 4 shows another embodiment of the digital TV set remote-controller based on bluetooth of the present invention.See also Fig. 4, telepilot 20 comprises: microcontroller 21, IR chip 22, Bluetooth chip 23, storage card read-write interface module 24.Wherein microcontroller 21 further comprises: infrared control unit 210, Bluetooth protocol stack cell 211, storage card read-write control unit 212, decoding unit 213 and broadcast unit 214.Telepilot 20 in the present embodiment has been realized the multi-medium data in the telepilot is transferred to digital television.
The infrared emission of the 210 pairs of IR chips 22 in infrared control unit is controlled, and the infrared signal of emission mainly comprises the remote control mode of telepilot.Bluetooth chip 23 can receive the connection request from digital television on the one hand, receives the multi-medium data that obtains from storage card read-write interface module 24 from microcontroller 21 on the one hand and sends it to digital television.
24 pairs of external storage cards of storage card read-write control unit 212 control store card read-write interface modules 25 carry out reading and writing data.The multi-medium data that reads (picture or audio frequency) can be through being play by broadcast unit 214 after decoding unit 213 decodings again.The multi-medium data that perhaps reads is sent to digital television through Bluetooth chip 23, thereby is play in digital television under the control of Bluetooth protocol stack cell 211.
Bluetooth protocol stack cell 211 is based on embedded real-time operating system, and its principle is identical with first embodiment, does not repeat them here.Please in the Bluetooth transmission of multi-medium data, mainly be to utilize the OBEX agreement to come exchangeable object simultaneously referring to bluetooth file transfer model shown in Figure 5, object can be a file or folder.The file transmission specification depends on serial ports standard and general access standard, uses OBEX to define application protocol.Exchange files has defined the role of two equipment: client-server.Blue Tooth remote controller is as server, digital television is as client computer, telepilot is opened the memory device of institute's carry to digital television, for digital television reads the ability of folder content and content in the memory device, uses for picture browsing of digital television end and music.
Fig. 6 shows another embodiment of the digital TV set remote-controller based on bluetooth of the present invention.See also Fig. 6, telepilot 30 comprises: microcontroller 31, IR chip 32, Bluetooth chip 33, storage card read-write interface module 34.Wherein microcontroller 31 further comprises: infrared control unit 310, Bluetooth protocol stack cell 311, storage card read-write control unit 312, decoding unit 313, broadcast unit 314 and audio treatment unit 315.Telepilot 30 in the present embodiment can be realized receiving from the Bluetooth audio frequency signal of digital television and be exported, and can realize again the multi-medium data in the telepilot is transferred to digital television.
The emission of the infrared signal of infrared control unit 310 control IR chips 32.Bluetooth protocol stack cell 311 is realized the data transmission of Bluetooth chip 33 is controlled by bluetooth protocol repertory.Bluetooth chip 33 receives the connection request from digital television on the one hand, receive on the one hand Bluetooth audio frequency signal, receive the data that obtain from storage card read-write interface module 34 from microcontroller 31 on the one hand and send it to digital television from digital television.
Bluetooth protocol repertory is based on embedded real-time operating system, and therefore same the above embodiments of inside principle of protocol stack repeat no more.Multi-medium data in the OBEX agreement support storage card wherein transfers to be browsed in the digital television and plays, and the A2DP agreement supports the audio signal transmission in the digital television to decode and output to telepilot.
Based on this telepilot embodiment, the invention allows for a kind of connection and control method of blue Tooth remote controller.See also Fig. 7, at first describe digital television and telepilot through the method for operating of binding, when telepilot entered the bluetooth effective range of digital television, digital television used the PIN code of having preserved from being dynamically connected telepilot.The multimedia file (picture or music file) that digital television uses the OBEX agreement to obtain in the telepilot end memory device after the successful connection is browsed or is play, synchronously, telepilot provides OBEX service, with the required file transfer of browsing or playing to digital television.Telepilot such as need are play the sound signal of digital television, then use the A2DP agreement with audio transmission to telepilot, telepilot receives, decoding back audio plays.
Certainly, if telepilot did not also have before using and digital television carried out binding, then need before use through following process: at first telepilot is placed and to be searched state, search bluetooth equipment by the bluetooth of digital television then, after finding blue Tooth remote controller, use PIN code binding blue Tooth remote controller, the telepilot checking PIN code, the binding of response televisor.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (6)
1 one kinds of digital TV set remote-controllers based on bluetooth receive Bluetooth audio frequency signal and output from digital television, and this telepilot comprises:
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Bluetooth chip receives the connection request from digital television, receives the Bluetooth audio frequency signal from digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of this Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The infrared control unit is controlled the emission of this IR chip;
Audio treatment unit is decoded and is exported the Bluetooth audio frequency signal that receives.
2 digital TV set remote-controllers based on bluetooth according to claim 1 is characterized in that, external earphone of this audio treatment unit or loudspeaker.
3 one kinds of digital TV set remote-controllers based on bluetooth, the multi-medium data in this telepilot transfers to digital television, and this telepilot comprises:
Storage card read-write interface module is supported the reading and writing data to the external memory device of this telepilot;
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The storage card read-write control unit is realized the read-write control to storage card;
The infrared control unit is controlled the emission of this IR chip;
Bluetooth chip receives the connection request from digital television, receives the data that obtain from this storage card read-write interface module from this microcontroller and sends it to digital television.
4 digital TV set remote-controllers based on bluetooth according to claim 3 is characterized in that this microcontroller also comprises:
Decoding unit receives the data in the memory device, decodes;
Broadcast unit is play the data through this decoding unit decodes.
5 one kinds of digital TV set remote-controllers based on bluetooth receive Bluetooth audio frequency signal and output from digital television, simultaneously the multi-medium data in the telepilot are transferred to digital television, and this telepilot comprises:
The IR chip, the infrared signal that will comprise remote control mode information is emitted to digital television;
Storage card read-write interface module is supported the reading and writing data to the external memory device of this telepilot;
Bluetooth chip receives the connection request from digital television, receives the Bluetooth audio frequency signal from digital television, receives the data that obtain from this storage card read-write interface module from microcontroller and sends it to digital television;
Microcontroller comprises:
The Bluetooth protocol stack cell is set up bluetooth protocol repertory in embedded real-time operating system, by this bluetooth protocol repertory the data transmission of this Bluetooth chip is controlled, and this bluetooth protocol repertory further comprises:
Logic link control and adapting protocol are positioned on the baseband protocol, provide towards connecting and connectionless data, services to the upper strata, mainly comprise cutting apart and recombinating and divide into groups and mention of protocol multiplexing, grouping;
Service discovery protocol is based on the agreement of client/server structure, and service log table of server maintenance is described the service features of this server, and the client asks for information on services by sending a service discovery protocol request from the server record table;
Object Exchange, the application protocol of defined file transmission;
Audio distribution formula host-host protocol, be used to receive sound signal from digital television, adopt an isochronous data channel that loads on logic link control and the adapting protocol layer, be the audio/video distribution transport protocol between this audio distribution formula host-host protocol and logic link control and adapting protocol, this host-host protocol has defined the transmission mechanism of audio and video stream;
The storage card read-write control unit is realized the read-write control to storage card;
The infrared control unit is controlled the emission of this IR chip;
Audio treatment unit is decoded and is exported the Bluetooth audio frequency signal that receives;
Decoding unit, the data in the reception memory device are also decoded;
Broadcast unit is play the data through this decoding unit decodes.
6 digital TV set remote-controllers based on bluetooth according to claim 5 is characterized in that, external earphone of this audio treatment unit or loudspeaker.
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| CN102298833A (en) * | 2011-09-14 | 2011-12-28 | 中兴通讯股份有限公司 | Remote controller |
| CN102695299B (en) * | 2012-05-11 | 2015-11-25 | 华为终端有限公司 | Wireless data card and communication means thereof |
| DE102013000839A1 (en) * | 2013-01-21 | 2014-07-24 | Andrea Hildenbrand | Food processor, control unit for this and recipe making process |
| CN103139625A (en) * | 2013-02-04 | 2013-06-05 | 童宗伟 | General smart television controller system and structure |
| CN103686293A (en) * | 2013-12-30 | 2014-03-26 | 天津三星电子有限公司 | Television control terminal and data transmission connection establishing method |
| WO2020107491A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Wireless audio system, and audio communication method and device |
| CN110062265A (en) * | 2019-06-05 | 2019-07-26 | 甘肃省冬果新能源科技有限公司 | A kind of Bluetooth music reception broadcasting television set |
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