CN104780433A - Distance-sensing-based wireless screen transmission system and method - Google Patents
Distance-sensing-based wireless screen transmission system and method Download PDFInfo
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- CN104780433A CN104780433A CN201510134785.6A CN201510134785A CN104780433A CN 104780433 A CN104780433 A CN 104780433A CN 201510134785 A CN201510134785 A CN 201510134785A CN 104780433 A CN104780433 A CN 104780433A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Details Of Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a distance-sensing-based wireless screen transmission system and method. The system comprises a television terminal and mobile intelligent equipment, wherein a distance signal transmitter and screen transmission middleware are arranged in the television terminal; a distance signal receiver wirelessly connected with the distance signal transmitter and a screen transmission client wirelessly connected with the screen transmission middleware are arranged in the mobile intelligent equipment; when the set visual distance of the television terminal is exceeded, a process of screen transmission from the television terminal to the screen transmission client of the mobile intelligent equipment is started; when the set visual distance is not exceeded, a process of screen transmission from the screen transmission client of the mobile intelligent equipment to the television terminal is started. Compared with the prior art, the system and the method have the advantages that a function of transfer from the television terminal to the mobile intelligent equipment for continuous playing is automatically realized when a user is far away from the television terminal, and when the user enters the visual range of the television terminal, a function of transfer from the mobile intelligent equipment to the television terminal for continuous playing is automatically realized, so that the adhesiveness of the user to the television terminal and user experiences are improved.
Description
Technical field
The present invention relates to TV tech, network technology, wireless distance finding technical field, particularly relate to a kind of wireless biography screen system of answering based on distance perspective and method.
Background technology
Along with the development of mobile Internet, the intelligent movable such as smart mobile phone, PAD equipment is strong, easy to operate and easily from entertainment resources such as a large amount of video of Network Capture, word, picture and game, become inseparable gradually with the life of people owing to having disposal ability; But due to shortcomings such as intelligent movable equipment audio frequency and video disposal ability are limited, screen is little, the audio frequency and video that user is difficult to obtain high-quality look experience.Meanwhile, intelligent television in the family but has the feature that screen is large, audio frequency and video disposal ability is strong, and the two combines by wireless biography screen technology, solves intelligent movable equipment user in family and experiences not enough problem.But in wireless biography screen process, how to improve the real-time, convenience, the intelligent level that pass screen process, ensure the key issue that Consumer's Experience and lifting user become television terminal viscosity etc.
Current wireless biography screen technology realizes mainly containing following two kinds:
The wireless biography screen method of application layer: the biography screen application program broadcasting that the biography screen application program play content in intelligent movable equipment is transferred to television is realized wireless biography screen.This mode needs user to be arranged on biography respectively and shields the biography screen application program that pairing is installed at two ends respectively, is generally unidirectional biography screen, can not realizes the transmission of whole screen content; User needs to start the application program passing screen two ends, is inconvenient to use.
The method of external biography screen equipment: equipment one end is communicated with television by HDMI, and one end is communicated with router, intelligent movable equipment need be installed corresponding biography screen and receive application program, and the biography screen equipment external with television realizes wireless biography alternately and shield.This mode needs the external biography screen equipment of user, is only used as large-screen by intelligent television, and can only realize the unidirectional biography screen process from intelligent movable equipment to television.
Above method can not realize the biography screen of whole screen content, or need user additionally to add equipment and realize unidirectional wireless biography screen process, all exists simultaneously pass in screen process with user interactions lack of wisdom, inconvenient user uses wireless biography screen function, is difficult to formation operating habit.
Summary of the invention
Object of the present invention is just to provide one to solve the problems referred to above, and the wireless biography screen system of answering based on distance perspective and method.
To achieve these goals, the technical solution used in the present invention is: a kind of wireless biography screen system of answering based on distance perspective, comprise television terminal and intelligent movable equipment, be provided with distance signal transmitting terminal in described television terminal, pass screen middleware, distance signal transmitting terminal shields between middleware be electrically connected with biography, the distance signal receiving terminal with the wireless connections of distance signal transmitting terminal is provided with in described intelligent movable equipment, and with pass the biography of shield middleware wireless connections and shield client, described distance signal receiving terminal is electrically connected with passing to shield between client.
The built-in biography screen middleware Main Function of television terminal be set up wireless connections with intelligent movable equipment, the various biography of the biography received being shielded to client sends shield instruction and make response: when receive draw shield ask time, start and grab panel module, capture television terminal screen content, after coding and format conversion, be sent to intelligent movable equipment pass screen client terminal playing; When receive push away screen request time, receive the intelligent movable device screen content that autobiography screen client sends, play in television after the process such as codec format conversion.
Distance signal receiving terminal comprises the related hardware that mobile terminal device supporting signal receives, and its Main Function is the distance signal that the distance signal transmitting terminal of continuous reception television terminal sends, and gives after filtering and pass the decision-making of screen client after the process such as noise reduction.
The Main Function passing screen client is after the distance signal receiving distance signal receiving terminal, in family lan, find corresponding television terminal and set up network to connect, according to the distance X between the calculated signals intelligent movable equipment received and television terminal, judge scene and make a policy together with the television terminal visual range S of setting: when increasing above S gradually as X, represent that intelligent movable equipment is just away from television terminal, start from television terminal to the biography of intelligent movable equipment screen process, make user still can continue to watch the content of television terminal when exceeding the visual range of television terminal, when X be reduced to gradually be less than S time, represent that intelligent movable equipment enters in the visual range of television terminal, start the biography screen process from intelligent movable equipment to television terminal, make user continue the screen content of viewing intelligent movable equipment at the large-size screen monitors of TV.
As preferably, described intelligent movable equipment starts biography screen client by user and searches neighbouring attachable biography screen source, after range calibration, send after selecting to pass screen object to the request of biography screen, the built-in distance signal transmitting terminal of television terminal continues to send signal towards periphery, and monitors the biography screen request of intelligent movable equipment; After the biography receiving intelligent movable equipment shields request, start biography and shield middleware, shield client terminal playing according to the biography that biography screen request content selects crawl TV terminal screen contents processing to be sent in intelligent movable equipment; Or the intelligent movable device screen content that reception biography screen client is sent is play at television terminal.
As preferably, the visual range that screen client can set television terminal is passed described, when distance between distance signal transmitting terminal and distance signal receiving terminal exceedes the visual range setting television terminal, start the biography screen process passing screen client from television terminal to intelligent movable equipment; When not exceeding the visual range of setting, start and pass the biography screen process of screen client to television terminal from intelligent movable equipment.
As preferably, bluetooth 4.0 or ZigBee wireless transmission is adopted between described distance signal transmitting terminal and distance signal receiving terminal, the transmission (as every 30 seconds send once) of rule comprises the distance signal of this television terminal information, as the base station end that distance perspective is answered.
Based on the wireless biography screen method that distance perspective is answered, comprise the following steps:
Step one. user starts the biography screen client on intelligent movable equipment first time;
Step 2. apart from the calibration of television terminal specified distance, improve system distance induction precision;
Step 3. user manually sets the visual range S of television terminal passing screen client;
Step 4. intelligent movable equipment interval a period of time obtains the band uniquely identified RSSI signal that television terminal signal transmitting terminal sends, and passes screen client and finds this television terminal by wireless network;
If step 5. successfully find this television terminal, set up intelligent movable equipment and pass screen client passes screen middleware wireless network connection to television terminal; Otherwise exit and pass screen;
Step 6. intelligent movable equipment passes the distance signal that screen client is received by filtering, noise reduction, Passivation Treatment, calculates the distance X between current intelligent movable equipment and television terminal;
Step 7. when calculate distance X from the television terminal visual range S being less than setting be increased to X be greater than S time, represent that user has now exceeded the visual range of setting apart from television terminal, start the biography screen process passing screen client from television terminal to intelligent movable equipment, facilitate user to continue through the content of mobile terminal device viewing television terminal;
Step 8. when calculate distance X from the television terminal visual range S being greater than setting be reduced to X be less than S time, represent that user now enters the visual range of television terminal, start the biography screen process from intelligent movable equipment to television terminal, user can see mobile terminal device screen content in television terminal, be switched to the large-size screen monitors of television terminal from the smaller screen of mobile terminal device, promote Consumer's Experience;
As preferably, in step 7, calculate distance X from the television terminal visual range S being less than setting be increased to X be greater than S time, start the biography passing screen client from television terminal to intelligent movable equipment and shield process, concrete steps are as follows,
A, intelligent movable equipment connect the biography screen middleware sending and pass and shield and ask television terminal by network;
B, television terminal pass screen middleware and start, and capture television terminal current screen content, after the process such as coding, format conversion, are sent to intelligent movable equipment by wireless network;
C, intelligent movable equipment pass screen client and receive television terminal screen data, play video screen content after process by passing screen client player, realize the biography screen process of television terminal to intelligent movable equipment;
D, when user exit pass screen client, television terminal shutdown or intelligent movable equipment enter within the scope of setpoint distance S time, terminate from television terminal to intelligent movable equipment pass screen client biography screen process.
As preferably, in step 8, calculate distance X from the television terminal visual range S being greater than setting be reduced to X be less than S time, the biography started from intelligent movable equipment to television terminal shields process, and concrete steps are as follows,
A, mobile terminal device connect the biography screen middleware sending and push and ask television terminal by network;
B, television pass the biography screen request that screen Middleware Request TV user agrees to receive intelligent movable equipment;
C, h2 step is passed through, and intelligent movable equipment passes screen client and captures current page content, after the process such as coding, format conversion, is sent to television terminal passes screen middleware by wireless network;
D, television terminal pass screen middleware and receive intelligent movable device screen data, are play after process by television terminal, realize the biography screen process of intelligent movable equipment to television terminal;
E, when TV user terminate television terminal play, intelligent movable equipment user exit pass screen client or television terminal shutdown time, terminate from intelligent movable equipment to television terminal biography screen process.
Compared with prior art, the invention has the advantages that: the present invention makes user when away from television terminal, automatically realize television terminal and turn the function that mobile intelligent terminal continues broadcasting, automatically realize mobile intelligent terminal when entering television terminal visual range and turn the function that television terminal continues broadcasting, improve user to the viscosity of television terminal and Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment: a kind of wireless biography screen system of answering based on distance perspective of the present invention and method embodiment are described further below in conjunction with Fig. 1,
One, television terminal preset distance signal transmitting terminal and biography screen middleware:
Built-in distance signal transmitting terminal and biography screen middleware before television terminal dispatches from the factory, distance signal transmitting terminal also should comprise the relevant hardware devices for launching distance measuring signal.Preset distance signal transmitting terminal acquiescence configured tranmitting frequency and with unique television terminal identification information, can distance signal transmitting terminal be upgraded by the mode of system upgrade and pass screen middleware;
Two, intelligent movable equipment installs client
Before intelligent movable equipment dispatches from the factory, built-in biography is shielded client or is downloaded and installed for user by third-party platform issue biography screen client;
Three, user uses and passes screen client-side program
1, user starts the biography screen client of intelligent movable equipment first time, at distance Television clients one meter of calibration range;
2, wait for that client-side program search finds this television terminal and set up network to connect;
3, user sets the visual range of this television terminal, is generally 3 ~ 5 meters;
4, the distance signal of signal receiving end meeting continuous reception television terminal distance signal reflector transmission, carries out the process such as noise reduction filtering and gives biography screen client-side program;
5, pass screen client and calculate one group of distance value array dynamically increased by the distance computing formula that step 2 is calibrated;
6, pass screen client the visual range set with the one group of distance value and step 3 that record calculated signals is compared, judge user's use scenes;
If in 7 steps 6, one group of distance value from be less than visual range increase above this television terminal visual range gradually time, represent that user is just away from television terminal, pass screen client and send " walk see " request to the biography screen middleware of television terminal;
8, after biography screen middleware receives and passes screen request, the lasting current screen content capturing television terminal, is sent to the biography screen client-side program of intelligent movable equipment by video data after coded format conversion;
9, pass screen client-side program and receive television on-screen data, play after decoding conversion, user just can see the content the same with television terminal in real time;
If in 10 steps 6, one group of distance value from be greater than visual range be reduced to gradually be less than this television terminal visual range time, represent that user is just near television terminal, enters within the scope of the visual range of television terminal, pass biography screen middleware transmission " amplification see " request of screen client to television terminal;
11, after biography screen middleware receives and passes screen request, wait TV user confirms;
12, TV user confirms by rear, passes the current screen content that screen client-side program continues to capture television terminal, after coded format conversion, video data is sent to the biography screen middleware of television terminal;
13, pass screen middleware and receive intelligent movable device screen content-data, play after decoding conversion, user just can realize the content that large-screen viewing intelligent movable equipment is play;
If in 14 steps 6, during the constant or television terminal visual range through setting of one group of distance value, keep current biography screen state constant;
15, three kinds of situations can terminate to pass screen process: TV user terminates television terminal broadcasting, mobile device user exits and passes screen client, and television terminal shuts down.
Above exhaustive presentation is carried out to a kind of wireless biography screen system of answering based on distance perspective provided by the present invention and method, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, to change of the present invention and improve will be possible, and design and the scope of accessory claim defined can not be exceeded, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a wireless biography screen system of answering based on distance perspective, it is characterized in that: comprise television terminal and intelligent movable equipment, be provided with distance signal transmitting terminal in described television terminal, pass screen middleware, distance signal transmitting terminal shields between middleware be electrically connected with biography, the distance signal receiving terminal with the wireless connections of distance signal transmitting terminal is provided with in described intelligent movable equipment, and with pass the biography of shield middleware wireless connections and shield client, described distance signal receiving terminal is electrically connected with passing to shield between client.
2. a kind of wireless biography screen system of answering based on distance perspective according to claim 1, is characterized in that: adopt bluetooth 4.0 or ZigBee wireless transmission between described distance signal transmitting terminal and distance signal receiving terminal.
3. a kind of wireless biography screen system of answering based on distance perspective according to claim 1, it is characterized in that: described intelligent movable equipment starts biography screen client by user and searches neighbouring attachable biography screen source, after range calibration, send after selecting to pass screen object to the request of biography screen, the built-in distance signal transmitting terminal of television terminal continues to send signal towards periphery, and monitors the biography screen request of intelligent movable equipment; After the biography receiving intelligent movable equipment shields request, start biography and shield middleware, shield client terminal playing according to the biography that biography screen request content selects crawl TV terminal screen contents processing to be sent in intelligent movable equipment; Or the intelligent movable device screen content that reception biography screen client is sent is play at television terminal.
4. a kind of wireless biography screen system of answering based on distance perspective according to claim 3, it is characterized in that: pass described the visual range that screen client can set television terminal, when distance between distance signal transmitting terminal and distance signal receiving terminal exceedes the visual range setting television terminal, start the biography screen process passing screen client from television terminal to intelligent movable equipment; When not exceeding the visual range of setting, start and pass the biography screen process of screen client to television terminal from intelligent movable equipment.
5. a kind of wireless biography screen method of answering based on distance perspective according to claim 1, is characterized in that, comprise the following steps:
Step one. user starts the biography screen client on intelligent movable equipment first time;
Step 2. apart from the calibration of television terminal specified distance, improve system distance induction precision;
Step 3. user manually sets the visual range S of television terminal passing screen client;
Step 4. intelligent movable equipment interval a period of time obtains the band uniquely identified RSSI signal that television terminal signal transmitting terminal sends, and passes screen client and finds this television terminal by wireless network;
If step 5. successfully find this television terminal, set up intelligent movable equipment and pass screen client passes screen middleware wireless network connection to television terminal; Otherwise exit and pass screen;
Step 6. intelligent movable equipment passes the distance signal that screen client is received by filtering, noise reduction, Passivation Treatment, calculates the distance X between current intelligent movable equipment and television terminal;
Step 7. when calculate distance X from the television terminal visual range S being less than setting be increased to X be greater than S time, represent that user has now exceeded the visual range of setting apart from television terminal, start the biography screen process passing screen client from television terminal to intelligent movable equipment, facilitate user to continue through the content of mobile terminal device viewing television terminal;
Step 8. when calculate distance X from the television terminal visual range S being greater than setting be reduced to X be less than S time, represent that user now enters the visual range of television terminal, start the biography screen process from intelligent movable equipment to television terminal, user can see mobile terminal device screen content in television terminal, be switched to the large-size screen monitors of television terminal from the smaller screen of mobile terminal device, promote Consumer's Experience.
6. a kind of wireless biography screen method of answering based on distance perspective according to claim 5, it is characterized in that: in step 7, calculate distance X from the television terminal visual range S being less than setting be increased to X be greater than S time, start the biography screen process passing screen client from television terminal to intelligent movable equipment, concrete steps are as follows
A, intelligent movable equipment connect the biography screen middleware sending and pass and shield and ask television terminal by network;
B, television terminal pass screen middleware and start, and capture television terminal current screen content, after the process such as coding, format conversion, are sent to intelligent movable equipment by wireless network;
C, intelligent movable equipment pass screen client and receive television terminal screen data, play video screen content after process by passing screen client player, realize the biography screen process of television terminal to intelligent movable equipment;
D, when user exit pass screen client, television terminal shutdown or intelligent movable equipment enter within the scope of setpoint distance S time, terminate from television terminal to intelligent movable equipment pass screen client biography screen process.
7. a kind of wireless biography screen method of answering based on distance perspective according to claim 5, it is characterized in that: in step 8, calculate distance X from the television terminal visual range S being greater than setting be reduced to X be less than S time, start biography from intelligent movable equipment to television terminal and shield process, concrete steps are as follows
A, mobile terminal device connect the biography screen middleware sending and push and ask television terminal by network;
B, television pass the biography screen request that screen Middleware Request TV user agrees to receive intelligent movable equipment;
C, h2 step is passed through, and intelligent movable equipment passes screen client and captures current page content, after the process such as coding, format conversion, is sent to television terminal passes screen middleware by wireless network;
D, television terminal pass screen middleware and receive intelligent movable device screen data, are play after process by television terminal, realize the biography screen process of intelligent movable equipment to television terminal;
E, when TV user terminate television terminal play, intelligent movable equipment user exit pass screen client or television terminal shutdown time, terminate from intelligent movable equipment to television terminal biography screen process.
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| CN112822530A (en) * | 2020-12-29 | 2021-05-18 | 深圳Tcl新技术有限公司 | Screen projection method, receiving terminal, source terminal and screen projection system |
| CN112822530B (en) * | 2020-12-29 | 2022-07-29 | 深圳Tcl新技术有限公司 | Screen projection method, receiving terminal, source terminal and screen projection system |
| CN115714846A (en) * | 2022-10-24 | 2023-02-24 | 株洲华通科技有限责任公司 | Network screen transmission method and system of video conference terminal |
| CN115714846B (en) * | 2022-10-24 | 2024-03-22 | 株洲华通科技有限责任公司 | Network screen transmission method and system of video conference terminal |
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