CN102355606A - Method for remotely controlling intelligent television - Google Patents
Method for remotely controlling intelligent television Download PDFInfo
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Abstract
The invention relates to a method for remotely controlling an intelligent television, which comprises the following steps that: a network connection is established between a remote-control end and the intelligent television; the remote-control end sends a control command to the intelligent television; the intelligent television receives the control command and feeds back a response frame to the remote-control end; when the remote-control end knows that the control command is correctly executed according to the feedback response frame, the remote-control end sends a screen-transmission synchronous request to the intelligent television; the intelligent television returns a response frame which at least contains screen display content back to the remote-control end; and the remote-control end carries out displaying as a feedback frame according to the content of the returned response frame. According to the method provided by the invention, the control command is sent to the intelligent television after the network connection (such as Internet network connection) is established between the remote-control end and the intelligent television, further, the screen-transmission synchronous request is then sent to the intelligent television after a feedback result which indicates that the command is correctly executed is obtained, and thus, the real-time visualization of a control process is realized at the same time of realizing the remote control of the intelligent television.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of television set remote control technology.
Background technology
Along with the development of television set multimedia technology and network interconnection technology, intelligent TV set becomes the television product of main flow just gradually.Intelligent television; As smart mobile phone, have operating system, can be by user's program of providing of third party such as installation and uninstall, recreation service provider voluntarily; Come constantly television function to be expanded through this class method, and can be through surfing on the wired or wireless network implementation existing network.
In the like product at home and abroad, realized being implemented in through infrared, bluetooth, WIFI the method for remote-controlled television set in certain zone with mobile phone; Yet because intelligent TV set is supported increasing function, for example (Personal Video Recorder, the remote control mode in PVR) function, the Internet resources download function etc., those finite regions certainly will influence the ease of use of these functions to personal video recorder.
Summary of the invention
One of the object of the invention provides a kind of method of remote-controlled intelligent television set, can realize visual in the Long-distance Control of intelligent TV set and the control procedure.
Particularly, the method for a kind of remote-controlled intelligent television set that the embodiment of the invention provides comprises step: remote control end and intelligent TV set are set up network be connected; The remote control end is to the intelligent TV set transmitting control commands; Intelligent TV set receives control command and feeds back acknowledgement frame to remote control end; Know according to the acknowledgement frame of feedback that control command is carried out when correct to send to intelligent TV set when the remote control end and pass the screen synchronization request; Intelligent TV set comprises screen at least to the passback of remote control end and shows (On-screen Display, OSD) acknowledgement frame of content; And the remote control end shows as the feedback picture according to holding within the acknowledgement frame of passback.
It is in embodiments of the present invention, above-mentioned that remote control end and intelligent TV set to be set up network is connected for example be to utilize to follow User Datagram Protoco (UDP) (User Datagram Protocol, (Hole Punching) mode that burrows UDP) realizes.
In embodiments of the present invention; The step that above-mentioned intelligent TV set receives control command and feeds back acknowledgement frame to remote control end for example comprises: after intelligent TV set receives control command; To control command carry out cyclic redundancy check (CRC) (Cyclic Redundancy Check, CRC); If check errors, then feedback transmission wrong responses frame to remote control end; And if verification is correct, then control command is resolved and is passed in the control process of intelligent TV set and carry out, and feedback comprises acknowledgement frame to the remote control end that control command is carried out the state of correctness.
In embodiments of the present invention; When biography screen synchronization request is the audio video synchronization request; Above-mentioned intelligent TV set for example comprises to the step that the passback of remote control end comprises the acknowledgement frame of the apparent content of screen at least: carry out convergent-divergent after the video information intercepting framing of intelligent TV set with screen buffer in regular turn and handle and processed compressed, wherein video information comprises that display image and screen show (OSD) interface; And be back to the remote control end with the mode of acknowledgement frame based on the video information of TCP/IP (Transmission Control Protocol & Internet Protocol) agreement after with convergent-divergent and processed compressed.Further, to handle for example be after video information intercepting framing, its computing to be become 480i or 576i video format for above-mentioned convergent-divergent.
In embodiments of the present invention; When biography screen synchronization request was the text synchronization request, above-mentioned intelligent TV set for example comprised to the step that the passback of remote control end comprises the acknowledgement frame of the apparent content of screen at least: intelligent TV set parsing screen shows the interface and explains with extend markup language; And intelligent TV set returns with the mode of acknowledgement frame to the remote control end and utilizes extend markup language (Extensive Makeup Language, XML) Biao Shu screen shows content.
In embodiments of the present invention; Above-mentioned know according to the acknowledgement frame of feedback that control command is carried out when the remote control end and send the step that passes the screen synchronization request to intelligent TV set when correct and for example comprise: know that according to the acknowledgement frame of feedback control command carries out when correct when the remote control end, send the audio video synchronization request to intelligent TV set; And under the situation of network condition difference, switch to intelligent TV set and send the text synchronization request.
In embodiments of the present invention, above-mentioned remote control end is an electronic product of supporting ICP/IP protocol, and the panel computer of Android system for example is installed.
The method of a kind of remote-controlled intelligent television set that another embodiment of the present invention provides comprises step: the remote control end is to setting up the intelligent TV set transmitting control commands that the Internet network is connected with it; When the remote control end knows that the control command of intelligent TV set feedback is carried out correct state information, optionally send audio video synchronization request or text synchronization request to intelligent TV set according to network condition; And the remote control end is looked the video information of screen synchronization request according to the conduct response of intelligent TV set passback or is shown as the feedback picture as the text message of response text synchronization request.
The embodiment of the invention is connected (for example the Internet network connects) back to the intelligent TV set transmitting control commands through remote control end and intelligent TV set being set up network; And after obtaining the correct feedback result of command execution, send biography screen synchronization request to intelligent TV set again, therefore realized that the Long-distance Control of intelligent TV set has realized the real-time visual in the control procedure simultaneously.In addition, after intelligent TV set receives control command, control command is carried out cyclic redundancy check (CRC), also can guarantee the transmission reliability of control command.In addition, use the transmission of XML text to replace video transmission, under the situation of network condition poor (for example network congestion or limited bandwidth etc.), still can give the user to experience preferably.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention; Understand technological means of the present invention in order can more to know; And can implement according to the content of specification; And for allow above-mentioned and other purposes of the present invention, feature and advantage can be more obviously understandable; The following special preferred embodiment of lifting; And conjunction with figs., describe in detail as follows.
Description of drawings
Fig. 1 is the flow chart of method that is relevant to a kind of remote-controlled intelligent television set of the embodiment of the invention.
Fig. 2 is the principle schematic of setting up internetwork connection mode that is relevant to the embodiment of the invention.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; To its embodiment of method, method, step and the effect of the remote-controlled intelligent television set that proposes according to the present invention, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can clearly appear in following the cooperation in the graphic preferred embodiment detailed description of reference.Through the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet the appended graphic usefulness that only provides reference and explanation be not to be used for the present invention is limited.
Please with reference to Fig. 1 and Fig. 2; The method of the remote-controlled intelligent television set that the embodiment of the invention proposes is suitable for being executed between the electronic product and intelligent TV set of supporting ICP/IP protocol; And the electronic product of supporting TCP/IP is as the remote control end, and intelligent TV set is as controlled end.For ease of explanation, following examples are given an example as the electronic product of supporting ICP/IP protocol with the panel computer that the Android system is installed, but the present invention is not as limit; At this, the Android system to the perfection support of ICP/IP protocol and interprocess communication reliably can set up one can and PC between network communication method between the consumer electronics that compare favourably of network service.In addition, the intelligent TV set of the embodiment of the invention then is meant the television set that has network connecting function at least.To combine Fig. 1 and Fig. 2 that the method for the remote-controlled intelligent television set of embodiment of the invention proposition is elaborated below.Particularly, the method for the remote-controlled intelligent television set of embodiment of the invention proposition comprises the steps S10 ~ S20.
After preparing to begin to utilize panel computer remote-controlled intelligent television set, execution in step S10 sets up network with panel computer and intelligent TV set and is connected.As everyone knows, each host assignment in the inner networking all be virtual ip address usually, internal network is through a real IP address and extraneous communication, thereby hidden address of internal host, plays a protective role, the while has also been saved the use of real IP address.When an internal host during with extraneous certain host communication, internal host sends to NAT device with packet, comprise in the packet this moment source address port, destination address port and some other information.When packet arrives NAT (Network Address Translation; Network address translation) during equipment; NAT device generates a MAP mapping table and changes the source address in the packet into oneself legitimate ip address, and for this communication distributes a port numbers, is used for replacing source port number.All these changes of record in the MAP mapping table.Later on when NAT device is received the packet that transmits in the external world, NAT device is checked the MAP mapping table, more again with destination address port replace, thereby packet is sent to certain main frame of inside.This shows that through NAT device, it is easily that internal host outwards connects, if but external host wants to visit just difficulty relatively of intranet host.Therefore; If two main frames all are positioned at different NAT device back; This moment, both sides can't directly obtain the other side's IP address; For example when panel computer in the present embodiment and intelligent TV set lay respectively at different NAT device NATA, NATB back; Then can utilize the UDP mode of burrowing in the NAT crossing technology to set up based on the Internet network connects; In the detailed process: at first; Panel computer (its Intranet IP address for example is 172.168.0.20:4000) logging in network server S; NATA is that current communication (session) distributes a port for example 60000; The address of the panel computer received of webserver S is 202.187.45.3:60000 so, the outer net address of Here it is panel computer.Equally; Intelligent TV set (its Intranet IP address for example is 192.168.0.10:5000) logging in network server S; The port that NAT B distributes for this communication for example is 70000; The address of the intelligent TV set received of webserver S is 187.34.1.56:70000 so, the outer net address of Here it is intelligent TV set.At this moment, panel computer can have been communicated by letter with webserver S with intelligent TV set.If panel computer is thought direct photos and sending messages at this moment and given intelligent TV set, then can obtain the outer net address 187.34.1.56:70000 of intelligent TV set from webserver S, but this moment, panel computer can not receive to this address transmission information intelligent television set.Because do not have information among the NAT B, so can be with data packet discarding from NAT A about NAT A.Therefore, next, panel computer need send order and give webserver S, and request webserver S order intelligent TV set burrows to the panel computer direction.And webserver S order intelligent TV set to the process that the panel computer direction burrows is: webserver S allows intelligent TV set send a UDP bag for NAT A; So just on NAT B, created port mapping; Panel computer sends to the information of 187.34.1.56:70000 later on; Intelligent TV set just can receive, also is that panel computer has been set up network with intelligent TV set and is connected.
Be understandable that in addition,, for example be in the same local area network (LAN), then need not to utilize UDP to burrow to set up network to connect when panel computer and intelligent TV set are in same NAT device back.
Next, execution in step S11, by panel computer to the intelligent TV set transmitting control commands, for example with the mode transmitting control commands of control frame.In remote control process, intelligent TV set operation finger daemon, as server end, prison detects the control frame that its mixed-media network modules mixed-media is sent in real time.The open ports filter of intelligent TV set is come the signal of automatic network, if extract specific Data Identification from the packet header from the signal of this port, can assert that then this bag comprises control command.If confirm to be under control order, then carry out step S13 control command is carried out cyclic redundancy check (CRC), if find check errors, then execution in step S13a sends the error of transmission acknowledgement frame to panel computer.If verification is correct; Then execution in step S14 resolves control command and the corresponding information that parses is passed to as message in the control process of intelligent TV set and carries out, and intelligent TV set then can be carried out the acknowledgement frame of the state of correctness and feed back to panel computer comprising control command afterwards.
In the control command transmission course; Also having a kind of situation is that network is unreachable, and panel computer can't be received acknowledgement frame in this case, therefore considers on the aspect of application layer, to add a timer; When transmission surpasses certain hour (also being step S12), think that promptly network is unreachable.Because the Internet underlying protocol has been carried out overtime retransmission process, thus overtime re-transmission no longer done here, but execution in step S12a directly reports time-out error to panel computer, these information can obtain from the socket sockets interface.Time-out time is greater than the stand-by period of the overtime re-transmission of Internet underlying protocol, is controlled at again within user's acceptable scope, for example is set to 5 ~ 10 seconds.
Afterwards; Execution in step S15 knows according to the acknowledgement frame of the state that comprises control command execution correctness of feedback whether control command is carried out correctly by panel computer; After knowing that control command is carried out correctly; Then can send to intelligent TV set through panel computer and pass the screen synchronization request, panel computer is opened one and is waited for the passback that process is collected intelligent TV set simultaneously.
In the present embodiment, biography screen synchronization request comprises looks screen synchronization request and text synchronization request, and dissimilar synchronization request is corresponding to the various network state; In other words, according to different networking situations, optionally send audio video synchronization request or text synchronization request to intelligent TV set.
Therefore, at step S16, judge that by the user perhaps panel computer is judged network condition automatically through software.Under the good situation of network condition, then execution in step S17a sends the audio video synchronization request by panel computer to intelligent TV set, opens one simultaneously and waits for the passback that process is collected intelligent TV set.After intelligent TV set is received and is looked the screen synchronization request; Execution in step S18a; The video information of looking the ping buffer district is comprised display image and apparent interface (OSD) the intercepting framing of screen and becomes 480i or 576i through Zoom module (Scaler) computing that (wherein i represents interlacing scan; Digitized representation scan line quantity) video format; Through compression algorithm sectional drawing is compressed into the very little file of capacity (for example a two field picture probably takies less than 50 network data frames) again, is back to panel computer through ICP/IP protocol afterwards.Afterwards, execution in step S19a, panel computer put it into buffer memory after receiving the video information of compression, with corresponding algorithm decompressed video information, are shown in the viewing area that panel computer designs as the feedback picture again.In the present embodiment, the passback of video information promptly after a control command transmits and carry out correctly, all can have the sectional drawing of a screen to send to the panel computer as the remote control end as the part of acknowledgement frame, so just can guarantee the timely feedback of controlling.
Under the situation of network condition difference; It is very limited or can't normally use 3G signal or the like network congestion, the network bandwidth for example to occur; Serious time-delay can appear in the transmission of video image; Can have a strong impact on user's experience in this case; Can consider execution in step S17b this moment; Send the text synchronization request by panel computer to intelligent TV set, and the passback that process is collected intelligent TV set is waited in operation.Under this situation, intelligent TV set is the response text synchronization request, can execution in step S18b, be back to panel computer after the OSD interface resolved and explain with extend markup language (XML).At this, the XML data are plain text information, and amount of information is significantly smaller than video, but the ability to express of XML is very strong, can comprise all information in the OSD interface; Therefore under the situation of network condition difference, can consider to sacrifice video section information, change the text transmission into.The problem of bringing is that panel computer and intelligent TV set both sides need know the standard that a kind of OSD expresses with XML, and panel computer needs the OSD picture resource of intelligent TV set.Get access to the XML text of passback at panel computer, execution in step S19b begins text is resolved, and inserts corresponding picture, expresses the information of each project of XML (item) that gets access to simultaneously, has so just constituted a complete OSD interface.
At last, when video information or XML text message correct conduct feedback picture that shows on panel computer, just we can say and accomplished the once-through operation cycle that panel computer begins adjustment and prepares the next operation cycle, so repeatedly.Also promptly, carry out next control command (step S20), then be back to step S11 when needs; Otherwise, then finish remote control process.
What deserves to be mentioned is that mostly panel computer is the touch-control input, therefore can design end demonstration feedback picture in advance, again the virtual remote control device is shown to the other end in the whole interface of panel computer.
In brief; The embodiment of the invention is connected (for example the Internet network connects) back to the intelligent TV set transmitting control commands through remote control end and intelligent TV set being set up network; And after obtaining the correct feedback result of command execution, send biography screen synchronization request to intelligent TV set again, therefore realized that the Long-distance Control of intelligent TV set has realized the real-time visual in the control procedure simultaneously.In addition, after intelligent TV set receives control command, control command is carried out cyclic redundancy check (CRC), also can guarantee the transmission reliability of control command.Moreover the reliability of control can be passed through two promises, and one is the reliable transmission of ICP/IP protocol, can guarantee the reliable transmission of data, and one is the verification and the Handshake Protocol of application layer, can guarantee the reliability of signaling.In addition, use the transmission of XML text to replace video transmission, under the situation of network condition poor (for example network congestion or limited bandwidth etc.), still can give the user to experience preferably.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Though the present invention discloses as above with preferred embodiment; Yet be not in order to limit the present invention; Anyly be familiar with the professional and technical personnel; In not breaking away from technical scheme scope of the present invention; When the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be not break away from technical scheme content of the present invention;, all still belong in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1. the method for a remote-controlled intelligent television set is characterized in that, comprises step:
Remote control end and intelligent TV set are set up network to be connected;
The remote control end is to the intelligent TV set transmitting control commands;
Intelligent TV set receives control command and feeds back acknowledgement frame to remote control end;
Know according to the acknowledgement frame of feedback that control command is carried out when correct to send to intelligent TV set when the remote control end and pass the screen synchronization request;
Intelligent TV set comprises the acknowledgement frame that screen shows content at least to the passback of remote control end; And
The remote control end shows as the feedback picture according to the content of the acknowledgement frame of passback.
2. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, it is to utilize the mode of burrowing follow User Datagram Protoco (UDP) to realize that remote control end and intelligent TV set are set up that network is connected.
3. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, the step that intelligent TV set receives control command and feeds back acknowledgement frame to remote control end comprises:
After intelligent TV set receives control command, control command is carried out cyclic redundancy check (CRC);
If check errors, then feedback transmission wrong responses frame to remote control end; And
If verification is correct, then control command is resolved and is passed in the control process of intelligent TV set and carry out, and feedback comprises acknowledgement frame to the remote control end that control command is carried out the state of correctness.
4. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, when biography screen synchronization request was the audio video synchronization request, intelligent TV set comprised to the step that the passback of remote control end comprises the acknowledgement frame of the apparent content of screen at least:
Carry out convergent-divergent after the video information intercepting framing of intelligent TV set with screen buffer in regular turn and handle and processed compressed, wherein video information comprises that display image and screen show the interface; And
Be back to the remote control end based on the video information of ICP/IP protocol after with the mode of acknowledgement frame with convergent-divergent and processed compressed.
5. the method for remote-controlled intelligent television set according to claim 4 is characterized in that, it is after video information intercepting framing, its computing to be become 480i or 576i video format that convergent-divergent is handled.
6. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, when biography screen synchronization request was the text synchronization request, intelligent TV set comprised to the step that the passback of remote control end comprises the acknowledgement frame of the apparent content of screen at least:
Intelligent TV set is resolved the apparent interface of screen and is explained with extend markup language; And
Intelligent TV set returns with the mode of acknowledgement frame to the remote control end and utilizes the screen of extend markup language statement to show content.
7. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, knows according to the acknowledgement frame of feedback that control command is carried out when the remote control end and sends the step that passes the screen synchronization request to intelligent TV set when correct and comprise:
Know according to the acknowledgement frame of feedback that control command is carried out when correct when the remote control end and send the audio video synchronization request to intelligent TV set; And
Under the situation of network condition difference, switch to intelligent TV set and send the text synchronization request.
8. the method for remote-controlled intelligent television set according to claim 1 is characterized in that, the remote control end is a panel computer.
9. the method for a remote-controlled intelligent television set is characterized in that, comprises step:
The remote control end is to setting up the intelligent TV set transmitting control commands that the Internet networking is connected with it;
When the remote control end knows that the control command of intelligent TV set feedback is carried out correct state information, optionally send audio video synchronization request or text synchronization request to intelligent TV set according to network condition; And
The remote control end shows as the feedback picture according to the video information of the conduct response audio video synchronization request of intelligent TV set passback or as the text message of response text synchronization request.
10. the method for remote-controlled intelligent television set according to claim 9 is characterized in that, optionally comprises to the step that intelligent TV set sends audio video synchronization request or text synchronization request according to network state:
When judging under the situation of network state for difference, select to send the text synchronization request to intelligent TV set; Otherwise, send the audio video synchronization request to intelligent TV set.
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