CN107124601B - Projector and projection method - Google Patents
Projector and projection method Download PDFInfo
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- CN107124601B CN107124601B CN201710515689.5A CN201710515689A CN107124601B CN 107124601 B CN107124601 B CN 107124601B CN 201710515689 A CN201710515689 A CN 201710515689A CN 107124601 B CN107124601 B CN 107124601B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
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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]
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
Abstract
The invention discloses a projector and a projection method, wherein the projection method is applied to the projector, and the projector comprises the following steps: the central processing unit, the projector still includes: the projection method comprises the following steps that a first WiFi communication unit and a second WiFi communication unit are connected with a central processing unit, and the projection method comprises the following steps: the first WiFi communication unit receives projection data uploaded by one or more first terminals through a wireless network; the central processing unit controls the second WiFi communication unit to send the projection data to one or more second terminals. According to the projector and the projection method, the projector can receive the projection data uploaded by the first terminal through the wireless network and can also send the projection data to the second terminal, so that the projection data can be uploaded more conveniently, the projection content can be watched at the terminal directly, and the projection content can be watched more conveniently.
Description
Technical Field
The present invention relates to the field of projectors, and in particular, to a projector and a projection method.
Background
The projector is one of the indispensable devices in various conferences, but most of the commonly used projectors are VGA (video Graphics array) interface, if the device without VGA interface (such as apple notebook) is connected with the projector through a patch cord (such as HDMI to VGA), so as to output the projected content to the projector.
Because the projector can only be connected with one terminal at a time, if a plurality of persons in a conference need to alternately use the projector, VGA lines of the projector need to be plugged in and pulled out from a plurality of terminals; or fixing a terminal to output to a projector, and using the terminal by several people alternately by changing positions; either way, it is particularly cumbersome to use.
The existing projector has no downloading function, when other persons participating in a meeting feel that the projected content is interesting or important, the persons can only take pictures with a mobile phone and the like carried about or download the pictures after meeting, the pictures not only affect other participants, but also are subject to objective factors such as distance light, and the like, so that the picture taking effect is not ideal; often there is not much time to download files for the participants after the meeting.
Still some participants can not see the projected content clearly because the position of the participant is too far away from the projection screen, the angle is too eccentric, or the participant can see the eyesight, and the like, and the problem also needs to be solved urgently.
Therefore, there is a need for a projector that can simultaneously connect a plurality of terminals, facilitating data content uploading, viewing and downloading, and that solves the above-mentioned problems.
Disclosure of Invention
The invention mainly aims to provide a projector and a projection method capable of uploading and downloading projection data through a terminal.
The invention provides a projection method, which is applied to a projector, wherein the projector comprises the following steps: the central processing unit, the projector still includes: the first WiFi communication unit and the second WiFi communication unit are connected with the central processing unit, and the method comprises the following steps:
the first WiFi communication unit receives projection data uploaded by one or more first terminals through a wireless network;
the central processing unit controls the second WiFi communication unit to send the projection data to one or more second terminals.
Further, before the first WiFi communication unit receives the projection data uploaded by one or more first terminals through the wireless network, the method further includes:
the method comprises the steps that a first WiFi communication unit receives connection request messages sent by one or more first terminals;
the first WiFi communication unit feeds back the sequence of the connection request messages sent by one or more first terminals to the central processing unit;
and the central processing unit distributes the authority to one or more first terminals according to the sequence of the connection request messages sent by the terminals.
Further, the assigning, by the central processing unit, the authority to the one or more first terminals according to the order in which the terminals send the connection request messages includes:
the central processing unit marks a first terminal which sends a connection request message to the first WiFi communication unit as a first management authority terminal;
the central processing unit controls the first WiFi communication unit to send the connection password to the first management authority terminal.
Further, still include:
the first WiFi communication unit receives a list of second management authority terminals sent by the first management authority terminal;
the first WiFi communication unit forwards the identity list of the second management authority to the central processing unit;
the central processing unit records the identity information of the second management authority terminal.
Further, before the second WiFi communication unit sends the projection data to one or more second terminals, the method further includes:
the second WiFi communication unit receives connection request messages sent by one or more second terminals;
the second WiFi communication unit feeds back a connection request message sent by one or more second terminals to the central processing unit;
and the central processing unit allocates the authority to one or more second terminals.
The present invention also provides a projector, including: a central processing unit, further comprising: the first WiFi communication unit and the second WiFi communication unit are connected with the central processing unit; the first WiFi communication unit is used for receiving projection data uploaded by one or more first terminals through a wireless network; the second WiFi communication unit is used for sending the projection data to one or more second terminals under the control of the central processing unit.
Further, the first WiFi communication unit includes a first connection request receiving module and a first feedback module; the first connection request receiving module is used for receiving connection request messages sent by one or more first terminals; the first feedback module is used for feeding back the sequence of the connection request messages sent by one or more first terminals to the central processing unit; the central processing unit includes: and the first permission allocation unit is used for allocating the permissions to one or more first terminals according to the sequence of the connection request messages sent by the terminals.
Further, the first authority allocation unit comprises an authority allocation submodule; the authority distribution submodule is used for calibrating a first terminal which firstly sends a connection request message to the first WiFi communication unit as a first management authority terminal; the central processing unit is further configured to: and controlling the first WiFi communication unit to send the connection password to the first management authority terminal.
Further, the first WiFi communication unit further includes a receiving module and a forwarding module; the receiving module is used for receiving a list of second management authority terminals sent by the first management authority terminal; the forwarding module is used for forwarding the identity list of the second management authority to the central processing unit; the central processing unit records the identity information of the second management authority terminal.
Further, the second WiFi communication unit includes a second connection request receiving module and a second feedback module; the second connection request receiving module is used for receiving connection request messages sent by one or more second terminals; the second feedback module is used for feeding back the connection request message sent by one or more second terminals to the central processing unit; the central processing unit comprises a second authority distribution unit; the second authority distributing unit is used for distributing the authority to one or more second terminals.
According to the projector and the projection method, the projector can receive the projection data uploaded by the first terminal through the wireless network and can also send the projection data to the second terminal, so that the projection data can be uploaded more conveniently, the projection content can be watched at the terminal directly, and the projection content can be watched more conveniently.
Drawings
FIG. 1 is a schematic diagram illustrating steps of an embodiment of a projection method according to the present invention;
FIG. 2 is a schematic diagram illustrating steps of another embodiment of the projection method of the present invention;
FIG. 3 is a diagram illustrating a step S03 in the projection method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating another embodiment of step S03 in the projection method according to the present invention;
FIG. 5 is a schematic diagram of the steps of a third embodiment of the projection method of the present invention;
FIG. 6 is a schematic diagram of a projector according to an embodiment of the present invention;
fig. 7 is a schematic structural view of another embodiment of the projector of the present invention;
fig. 8 is a schematic structural view of a third embodiment of the projector of the present invention;
fig. 9 is a schematic structural diagram of an embodiment of a first right assigning unit in the projector according to the present invention;
fig. 10 is a schematic structural diagram of an embodiment of a first WiFi communication unit in the projector according to the present invention;
fig. 11 is a schematic configuration diagram of a projector according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the projection method of the present invention is applied to a projector, where the projector includes: the central processing unit, the projector still includes: the first WiFi communication unit and the second WiFi communication unit are connected with the central processing unit, and the method comprises the following steps:
and S10, the first WiFi communication unit receives the projection data uploaded by one or more first terminals through the wireless network.
And S20, the central processing unit controls the second WiFi communication unit to send the projection data to one or more second terminals.
In step S10, the first WiFi communication unit has a WiFi hotspot function, and the first terminal is wirelessly connected to the first WiFi communication unit.
In step S20, the second WiFi communication unit may have a plurality of second WiFi communication sub-units, each of the second WiFi communication sub-units having a WiFi hotspot function, and each of the second WiFi communication sub-units may be wirelessly connected to one or more second terminals.
It should be noted that, if the projection data currently required to be projected by the projector is pre-stored locally in the projector, for example, the data stored in the computer is transmitted to the projector through USB by a conventional method, the first WiFi communication unit and the second WiFi communication unit may respectively send the projection data to the first terminal and the second terminal.
The first terminal and the second terminal do not have the meaning of the front-back sequence, the first terminal is a terminal which is in communication connection with the first WiFi communication unit and has the management authority, and the second terminal is a terminal which is in communication connection with the first WiFi communication unit and mainly downloads projection data for a user to watch. The management authority is divided into two types, the first management authority is the highest management authority, and the terminal obtaining the first management authority can allocate the second management authority to other terminals and allocate the authority of the second terminal. The terminal that obtains the first management authority and the terminal that obtains the second management authority are distinguished by the first management authority terminal and the second management authority terminal in the following description.
The projector also includes a power management unit, a storage unit, a projector drive unit, and a reset unit connected to the central processing unit.
Referring to fig. 2, before step S10, the method further includes:
and S01, the first WiFi communication unit receives connection request messages sent by one or more first terminals.
And S02, the first WiFi communication unit feeds back the sequence of the one or more first terminals sending the connection request messages to the central processing unit.
And S03, the central processing unit allocates the authority to one or more first terminals according to the sequence of the connection request messages sent by the terminals.
In step S01, the first WiFi communication unit has WiFi accounts, one WiFi account can connect to multiple first terminals, and the first terminals send connection request messages to the first WiFi communication unit through the WiFi network.
In the above step S03, the assigned rights of the first terminal include a first management right and a second management right, and the first management right may set specific rights content of the second management right; the first administrative rights also include the right to upload projection data, the right to download projection data, the right to view projection content, and so on.
Referring to fig. 3, step S03 includes:
s031, the central processing unit designates a first terminal that first sends a connection request message to the first WiFi communication unit as a first management authority terminal.
S032, the central processing unit controls the first WiFi communication unit to send the connection password to the first management authority terminal.
In step S032, the first WiFi communication unit establishes a WiFi connection with the first WiFi communication unit by inputting the connection password.
In this way, after the first terminal sending the connection request message to the first WiFi communication unit is assigned the first administrator authority, the first terminal can establish connection with the first WiFi communication unit of the projector by means of the obtained connection password to perform communication. Since the first terminal is already identified as the first management authority terminal on the central processing unit of the projector, when the first terminal communicates with the first WiFi communication unit, the first WiFi communication unit will open the function corresponding to the first management authority to the first terminal. The first management authority terminal has the highest management authority and can be responsible for arranging the authorities of other terminals connected with the projector, for example, the terminals are allocated with the second management authority, the specific authority content of the second management authority is set, the second management authority is also the authority with management, and the second management authority can be responsible for managing the authority of the second terminal accessing the projector to download data after the second management authority is obtained. The first administrative rights also include the right to upload projection data, the right to download projection data, the right to view projection content, and so on.
Referring to fig. 4, step S03 further includes:
s033, the first WiFi communication unit receives the list of the second management authority terminal sent by the first management authority terminal.
S034, the first WiFi communication unit forwards the identity list of the second management authority to the central processing unit.
And S035, the central processing unit records the identity information of the second management authority terminal.
In step S033, the second management authority terminal is selected from the first management authority terminal, and after obtaining the second management authority, the second management authority terminal may be responsible for managing the authority of the second terminal accessing the projector to download the data. And the second management authority terminal for obtaining second management authority comprises a right for uploading projection data, a right for downloading projection data, a right for watching projection content and the like, and is communicated with the projector through the first WiFi communication unit.
When the right needs to be redistributed, the central processing unit controls the reset unit to restore the right for controlling the projector to factory settings.
Referring to fig. 5, before step S20, the method further includes:
and S04, the second WiFi communication unit receives the connection request messages sent by one or more second terminals.
And S05, the second WiFi communication unit feeds back the connection request message sent by one or more second terminals to the central processing unit.
And S06, the central processing unit allocates the authority to one or more second terminals.
In the above step S06, the right of the second terminal is an access right, and the access right includes a right to download projection data, a right to view projection content, and the like.
Referring to fig. 6, the present invention also provides a projector including: the central processing unit 301 further includes: a first WiFi communication unit 10 and a second WiFi communication unit 20 connected to the central processing unit 301; the first WiFi communication unit 10 is configured to receive projection data uploaded by one or more first terminals through a wireless network; the second WiFi communication unit 20 is configured to transmit the projection data to one or more second terminals under the control of the central processing unit 301.
Referring to fig. 7, the projector further includes a power management unit 305, a storage unit 303, a projector drive unit 302, and a reset unit 304; the central processing unit 301 may store the received projection data in the storage unit 303, or may send the projection data in the storage unit 303 to the first terminal through the first WiFi communication unit 10 or to the second terminal through the second WiFi communication unit 20; the projection data in the storage unit 303 can also be extracted for playback.
The central processing unit 301 controls the power management unit 305, the projector drive unit 302, and the reset unit 304; the power management unit 305 may manage power for controlling the projector; the storage unit 303 may store projection data; the projector driving unit 302 may drive the projector to perform projection; the reset unit 304 may control the projector authority assignment to restore factory settings.
Referring to fig. 8, the first WiFi communication unit 10 includes a first connection request receiving module 01 and a first feedback module 02; the first connection request receiving module 01 is used for receiving connection request messages sent by one or more first terminals; the first feedback module 02 is configured to feed back a sequence in which one or more first terminals send connection request messages to the central processing unit 301; the central processing unit 301 includes: a first right allocating unit 03, configured to allocate rights to one or more first terminals according to an order in which the terminals send the connection request messages.
Referring to fig. 9, the first right allocation unit 03 includes a right allocation submodule 031; the authority allocation submodule 031 is configured to mark a first terminal that first sends a connection request message to the first WiFi communication unit 10 as a first management authority terminal; the central processing unit 301 is further configured to: and controlling the first WiFi communication unit 10 to send the connection password to the first management authority terminal.
Referring to fig. 10, the first WiFi communication unit 10 further includes a receiving module 04 and a forwarding module 05; the receiving module 04 is configured to receive a list of second management authority terminals sent by the first management authority terminal; the forwarding module 05 is configured to forward the identity list of the second management authority to the central processing unit 301; the central processing unit 301 records the identity information of the second management authority terminal.
Referring to fig. 11, the second WiFi communication unit 20 includes a second connection request receiving module 06 and a second feedback module 07; the second connection request receiving module 06 is configured to receive a connection request message sent by one or more second terminals; the second feedback module 07 is configured to feed back a connection request message sent by one or more second terminals to the central processing unit 301; the central processing unit 301 includes a second right assigning unit; the second authority distributing unit is used for distributing the authority to one or more second terminals.
According to the projector and the projection method, the projector can receive the projection data uploaded by the first terminal through the wireless network and can also send the projection data to the second terminal, so that the projection data can be uploaded more conveniently, the projection content can be watched at the terminal directly, and the projection content can be watched more conveniently.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A projection method is applied to a projector, and the projector comprises the following steps: a central processing unit, wherein the projector further comprises: a first WiFi communication unit and a second WiFi communication unit connected with the central processing unit, the method comprising:
the first WiFi communication unit receives projection data uploaded by one or more first terminals through a wireless network;
the central processing unit controls the second WiFi communication unit to send the projection data to one or more second terminals;
the central processing unit distributes authority to the one or more first terminals according to the sequence of the first terminals sending the connection request messages;
the central processing unit marks a first terminal which sends a connection request message to the first WiFi communication unit as a first management authority terminal, wherein the first management authority is the highest management authority;
the terminal obtaining the first management authority can distribute a second management authority to other terminals and distribute the authority of the second terminal;
before the second WiFi communication unit sends the projection data to one or more second terminals, the method further includes: and the central processing unit allocates the authority to the one or more second terminals.
2. The projection method according to claim 1, wherein before the first WiFi communication unit receives the projection data uploaded by the one or more first terminals through the wireless network, the method further comprises:
the first WiFi communication unit receives connection request messages sent by the one or more first terminals;
and the first WiFi communication unit feeds back the sequence of the connection request messages sent by the one or more first terminals to the central processing unit.
3. The projection method of claim 2, wherein the assigning, by the central processing unit, the right to the one or more first terminals according to the order in which the terminals send the connection request messages comprises:
and the central processing unit controls the first WiFi communication unit to send the connection password to the first management authority terminal.
4. The projection method of claim 3, wherein the assigning, by the central processing unit, the right to the one or more first terminals according to the order in which the terminals send the connection request messages further comprises:
the first WiFi communication unit receives a list of second management authority terminals sent by the first management authority terminal;
the first WiFi communication unit forwards the identity list of the second management authority to the central processing unit;
and the central processing unit records the identity information of the second management authority terminal.
5. The projection method according to claim 1, wherein before the second WiFi communication unit sends the projection data to one or more second terminals, the method further comprises:
the second WiFi communication unit receives connection request messages sent by the one or more second terminals;
and the second WiFi communication unit feeds back the connection request message sent by the one or more second terminals to the central processing unit.
6. A projector, comprising: a central processing unit, further comprising: the first WiFi communication unit and the second WiFi communication unit are connected with the central processing unit;
the first WiFi communication unit is used for receiving projection data uploaded by one or more first terminals through a wireless network;
the second WiFi communication unit is used for sending the projection data to one or more second terminals under the control of the central processing unit;
the central processing unit includes: the first authority distributing unit is used for distributing the authorities of the one or more first terminals according to the sequence of the connection request messages sent by the first terminals;
the first right assigning unit includes: the authority distribution submodule is used for marking a first terminal which firstly sends a connection request message to the first WiFi communication unit as a first management authority terminal, and the first management authority is the highest management authority;
the terminal obtaining the first management authority can distribute a second management authority to other terminals and distribute the authority of the second terminal;
the central processing unit includes: and the second authority distribution unit is used for distributing the authority to the one or more second terminals.
7. The projector as claimed in claim 6, wherein the first WiFi communication unit includes:
a first connection request receiving module, configured to receive a connection request message sent by the one or more first terminals;
a first feedback module, configured to feed back, to the central processing unit, a sequence in which the one or more first terminals send the connection request messages.
8. The projector according to claim 7, wherein the first right assigning unit includes:
the central processing unit is further configured to: and controlling the first WiFi communication unit to send a connection password to the first management authority terminal.
9. The projector as defined in claim 8 wherein the first WiFi communication unit further comprises:
the receiving module is used for receiving a list of second management authority terminals sent by the first management authority terminal;
a forwarding module, configured to forward the identity list of the second management authority to the central processing unit;
and the central processing unit records the identity information of the second management authority terminal.
10. The projector as claimed in claim 6, wherein the second WiFi communication unit includes:
a second connection request receiving module, configured to receive a connection request message sent by the one or more second terminals;
and the second feedback module is used for feeding back the connection request message sent by the one or more second terminals to the central processing unit.
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| CN201710515689.5A CN107124601B (en) | 2017-06-29 | 2017-06-29 | Projector and projection method |
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| CN108092966A (en) * | 2017-12-11 | 2018-05-29 | 北京小米移动软件有限公司 | Project content transmission method, device, readable storage medium storing program for executing and projector equipment |
| CN111240614B (en) * | 2018-11-28 | 2023-06-20 | 阿里巴巴集团控股有限公司 | Screen projection processing method, device and equipment |
| CN109769107A (en) * | 2019-03-05 | 2019-05-17 | 中山市沃顿照明科技有限公司 | The system and method for projection lamp and long-range control project content |
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| CN106714170A (en) * | 2015-11-13 | 2017-05-24 | 深圳市光峰光电技术有限公司 | Projection device, user terminal, and method for accessing projection device into local area network |
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