CN100594708C - Projector, projection system and projection method - Google Patents
Projector, projection system and projection method Download PDFInfo
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- CN100594708C CN100594708C CN200510123660A CN200510123660A CN100594708C CN 100594708 C CN100594708 C CN 100594708C CN 200510123660 A CN200510123660 A CN 200510123660A CN 200510123660 A CN200510123660 A CN 200510123660A CN 100594708 C CN100594708 C CN 100594708C
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Abstract
The invention relates to a projector, projecting system and relative projecting method, wherein said projecting system comprises one projector, user terminal and network connected to the projector; the projector comprises at least one first wireless network interface, at least one second network interface and one processor; the first wireless network interface is connected to user terminal; the second network terminal is connected to network; the processor based on the data pack address of first wireless network interface judges if the data pack is used to project; if it is, projecting it, orelse, based on the data pack address, transferring data pack to relative second network interface; the processor based on the data pack address of second network interface judges if said data pack isthe data pack toward user terminal; if it is, sending it to relative first wireless network interface.
Description
Technical field
The present invention relates to a kind of projection arrangement, optical projection system and projecting method.
Background technology
In recent years, the wireless display technology was increasingly mature, and the application of projection arrangement is also universal day by day.Notebook uses wireless display software, sets up wireless network with projection arrangement and is connected, and the projection arrangement end that picture transmits is realized wireless display.But this technology is also brought new problem because after notebook and projection arrangement set up wireless connections, notebook originally and the wireless connections of local area network just be interrupted, so the user just can't be connected to local area network (LAN) when wireless display, can not surf the Net simultaneously.
At this problem, two kinds of solutions are arranged at present:
Method one, on notebook the two network interface cards of configuration, one of them is wireless network card (hereinafter claiming wireless network card 1), another can be that wireless network card also can be wired network adapter (hereinafter claiming network interface card 2).Notebook uses wireless network card 1 and projection arrangement to connect, and realizes projection, uses network interface card 2 and local area network to connect simultaneously, realizes function of surfing the Net.This method needs notebook that two network interface cards are arranged, and uses trouble.
Method two, notebook and projection arrangement all pass through the wireless access local area network, and notebook both can have been visited projection arrangement by local network also can visit external network, realize the function of projection limit, limit online.This method has limitation: 1. wireless networking capabilities rely on local area network, if there is not local area network, or local network do not allow external notebook user to insert, and the wireless display function just can not realize.2. because wireless display connects is not that notebook is connected with the direct of projection arrangement, but by the local area network (LAN) connection, the network environment more complicated of local area network (LAN), wireless network transmissions can be subjected to bigger interference, the wireless display difficult quality guarantee.
Summary of the invention
The object of the present invention is to provide a kind of projection arrangement, optical projection system and projecting method, it makes when user terminal only needs a wireless network card, also can realize the function of getting online without being tethered to a cable in wireless display limit, limit.
According to optical projection system of the present invention, it comprises a projector equipment, and the user terminal and the network that link to each other with this projector equipment, wherein, this projector equipment comprises at least one first radio network interface, at least one second network interface and a processor, first radio network interface links to each other with user terminal, and second network interface links to each other with network, and this processor basis is from the address of the packet of arbitrary first radio network interface, judge whether this packet is to be used for the projected data bag, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface; This processor basis judges from the address of the packet of arbitrary second network interface whether this packet is the packet of going to user terminal, if go to the packet of user terminal, then sends it to corresponding first radio network interface.
According to projector equipment of the present invention, it comprises at least one first radio network interface, at least one second network interface and a processor, wherein, this processor basis is from the address of the packet of first radio network interface, judge whether this packet is to be used for the projected data bag, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface that links to each other with network; This processor basis is from the address of the packet of second network interface, judge whether this packet is the packet of going to the user terminal that links to each other with first radio network interface, if go to the packet of user terminal, then send it to corresponding first radio network interface.
According to projecting method of the present invention, it comprises: step a, and first radio network interface and second network interface of configuration projector equipment make first radio network interface link to each other with user terminal, and second network interface is connected with network; Step b, projector equipment receives packet from first radio network interface or second network interface; Step c, the address of the packet that receives according to step b, whether judgement is to be used for the projected data bag from the packet from first radio network interface, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface; Whether judgement is the packet of going to user terminal from the packet of second network interface, if go to the packet of user terminal, then sends it to corresponding first radio network interface.
In optical projection system provided by the invention, in projection arrangement and the projecting method, user terminal (for example notebook) only needs a wireless network card just to realize the function of wireless display limit, limit online, does not need notebook is carried out HardwareUpgring, helps the popularization at notebook.The present invention has also avoided wireless display to depend on the problem of local area network, and even without local area network, the user also can carry out wireless display, and when local area network is arranged, just can realize the function of projection limit, limit online.
Description of drawings
Fig. 1 is the structured flowchart according to optical projection system of the present invention.
Fig. 2 is the flow process of the performed processing of notebook side.
Fig. 3 is the flow chart of the performed processing of projection arrangement side.
Embodiment
As shown in Figure 1, comprise a projection arrangement 1 according to optical projection system of the present invention, and the notebook 3 and the local area network (LAN) 2 that link to each other with this projection arrangement 1.This projection arrangement 1 is a wireless display device, and it comprises: wireless network card A 11, network interface card B 12, processor 13, video circuit 14, projection display unit 15.
Notebook 3 has a wireless network card (figure does not show), and notebook 3 uses this wireless network card to connect by the wireless network card A 11 of wireless network and projection arrangement 1.Simultaneously, projection arrangement 1 connects with local area network (LAN) 2 by network interface card B 12.Network interface card B 12 can be a wireless network card, also can be wired network adapter, and it also is wireless connections or wired connection with being connected of local area network (LAN) 2 accordingly.
The wireless network card A 11 of projection arrangement 1 is used for receiving packet from notebook 3, and will be sent to notebook 3 from the packet of local area network (LAN) 2.
The network interface card B 12 of projection arrangement 1 is used for receiving packet from local area network (LAN) 2, and will be sent to local area network (LAN) 2 from the packet of notebook 3.
The processor 13 of projection arrangement 1 receives packet from wireless network card A 11, according to the IP address of packet, determines that whether this packet is for being used for the projected data bag.If processor 13 determines that this packet is to be used for the projected data bag, be that the IP address is the IP address of projection arrangement, then processor 13 sends to video circuit 14 with this packet, through after the Video processing of video circuit 14, by projection display unit 15 projected images.If processor 13 determines that this packet is not to be used for the projected data bag, promptly the IP address is an IP address on the local area network (LAN), then this packet is sent to network interface card B 12, is sent to local area network (LAN) 2 via this network interface card B 12.In addition, the processor 13 of projection arrangement 1 receives packet from network interface card B 12 (being local area network (LAN) 2), according to the IP address of packet, determines whether this packet is the packet of going to notebook.If processor 13 determines that this packet is a packet of going to notebook 3, then processor 13 is sent to wireless network card A 11 with this packet.If processor 13 determines that this packet is not a packet of going to notebook 3, then processor 13 is with this data packet discarding.
In this optical projection system, notebook 3 also can replace with PC or other user terminal.And local area network (LAN) 2 also can be replaced by networks such as for example internets.
Below, with reference to Fig. 2 and Fig. 3, describe according to projecting method of the present invention.
Fig. 2 has described performed method and the flow process of notebook 3 sides, makes it can realize the online of projection limit, limit.
At first, in step S201, notebook 3 obtains SSID (service set identifiers) and the IP address of the wireless network card A 11 of projection arrangement 1.
In step S202, notebook 3 is according to SSID that is obtained and IP address, and the wireless network card of configuration notebook 3 makes it to set up wireless network with projection arrangement 1 and is connected.
Set up between notebook 3 and the projection arrangement 1 after wireless network connects when in step S202, having finished, notebook 3 will be surfed the Net by its wireless network card in step S203 or the packet of wireless display is issued projection arrangement 1 via above-mentioned wireless network connection, and wherein the IP address on wireless display packet rs destination ground is the IP address of projection arrangement 1.In addition, notebook 3 also connects the packet that receives from local area network (LAN) 2 by this wireless network except sending online and projected data bag.
In step S204, judge whether the user will finish projection and online.If then withdraw from.If not, then be back to step S203.
Below, according to Fig. 3, performed method and the flow process of projection arrangement 1 side described.
At first, in step S301, wireless network card A 11 and network interface card B 12 are carried out network configuration, network interface card B 12 is linked into local area network 2.
In step S302, wait notebook 3 is set up wireless network with projection arrangement 1 and is connected.
If notebook 3 has been set up wireless network with projection arrangement 1 and is connected in step S302, then projection arrangement 1 can begin to receive packets from wireless network card A 11 and network interface card B 12, promptly enters step S303 and S304.
After the packet that receives at step S303 from wireless network card A 11, whether be the IP address of projection arrangement 1 in the purpose IP address of step S305 judgment data bag.If the IP address of the IP address of packet and projection arrangement 1 is consistent, in step S306, this packet sent to then that video circuit 14 is handled and by projection display unit 15 projections, otherwise in step S307, this packet is forwarded to local area network (LAN) 2 by network interface card B 12.
After the packet that receives at step S304 from network interface card B 12, whether be notebook 3 in the destination of step S308 judgment data bag.If the destination of packet is a notebook 3, then in step S309, be transmitted to notebook 3 by wireless network card A 11.If not, then can be in step S311, with this data packet discarding.
In step S310, judge whether to continue projection and online, if return step S303, otherwise just withdraw from.
In the present invention, be that example describes to have two network interface card B that are connected with notebook with local area network (LAN) respectively and the projection arrangement of wireless network card A.But the present invention also can be such projection arrangement, and it has more than one the network interface card B that is connected with network and more than one the wireless network card A that is connected with user terminals such as notebooks.The operation principle of such projection arrangement is similar to the operation principle of projection arrangement as shown in Figure 1.That is, processor receives packet from arbitrary wireless network card A, according to the IP address of packet, determines that whether this packet is for being used for the projected data bag.If it is to be used for the projected data bag that processor is determined this packet, then this packet is handled the back projection.If it is not to be used for the projected data bag that processor is determined this packet, then, this packet is sent to corresponding network interface card B according to the IP address of packet.In addition, processor 13 receives packet from arbitrary network interface card B, according to the IP address of packet, determines whether this packet is the packet of going to user terminal.If it is the packet of going to user terminal that processor is determined this packet, then, this packet is sent to corresponding wireless network card A according to the IP address of packet.
According to the present invention, user terminal (for example notebook) only needs a wireless network card just to realize the function of wireless display limit, limit online, does not need notebook is carried out HardwareUpgring, helps the popularization at notebook.In addition, the present invention has also avoided wireless display to depend on the problem of local area network, and even without local area network, the user also can carry out wireless display, and when local area network is arranged, just can realize the function of projection limit, limit online.
Though the present invention expresses in more mode; but be not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can do various changes and retouching, so protection scope of the present invention is as the criterion when looking the patent claim person of defining.
Claims (10)
1. optical projection system, it comprises a projector equipment, and the user terminal and the network that link to each other with this projector equipment, wherein,
This projector equipment comprises at least one first radio network interface, at least one second network interface and a processor,
First radio network interface links to each other with user terminal, and second network interface links to each other with network,
This processor basis is from the address of the packet of one first radio network interface in described at least one first radio network interface, judge whether this packet is to be used for the projected data bag, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface;
This processor basis is from the address of the packet of one second network interface in described at least one second network interface, judge whether this packet is the packet of going to user terminal, if go to the packet of user terminal, then send it to corresponding first radio network interface.
2. optical projection system as claimed in claim 1, wherein,
Described first radio network interface is a wireless network card, and described second network interface is wired or wireless network interface card.
3. optical projection system as claimed in claim 1, wherein,
Described user terminal is a notebook computer.
4. optical projection system as claimed in claim 1, wherein,
When the address of processor basis, judge that this packet is not when going to the packet of user terminal, with this data packet discarding from the packet of second network interface.
5. projector equipment, it comprises at least one first radio network interface, at least one second network interface and a processor, wherein,
This processor basis is from the address of the packet of first radio network interface, judge whether this packet is to be used for the projected data bag, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface that links to each other with network;
This processor basis is from the address of the packet of second network interface, judge whether this packet is the packet of going to the user terminal that links to each other with first radio network interface, if go to the packet of user terminal, then send it to corresponding first radio network interface.
6. projector equipment as claimed in claim 5, wherein,
When the address of processor basis, judge that this packet is not when going to the packet of user terminal, with this data packet discarding from the packet of second network interface.
7. projecting method, it comprises:
Step a, first radio network interface and second network interface of configuration projector equipment make first radio network interface link to each other with user terminal, and second network interface is connected with network;
Step b, projector equipment receives packet from first radio network interface or second network interface;
Step c, the address of the packet that receives according to step b, whether judgement is to be used for the projected data bag from the packet of first radio network interface, if be used for the projected data bag, then with its projection, if not being used for the projected data bag, then according to the address of packet, the transfer of data bag is to corresponding second network interface; Whether judgement is the packet of going to user terminal from the packet of second network interface, if go to the packet of user terminal, then sends it to corresponding first radio network interface.
8. projecting method as claimed in claim 7, wherein,
In step a, first radio network interface of configuration projector equipment and second network interface comprise the SSID and the IP address of configuration first radio network interface and second network interface.
9. projecting method as claimed in claim 8, it further comprises:
User terminal according to step a to set SSID of first radio network interface and IP address, the step of the radio network interface of configure user terminal.
10. projecting method as claimed in claim 7, wherein,
In step c, when judging that the packet from second network interface is not when going to the packet of user terminal, with this data packet discarding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510123660A CN100594708C (en) | 2005-11-18 | 2005-11-18 | Projector, projection system and projection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510123660A CN100594708C (en) | 2005-11-18 | 2005-11-18 | Projector, projection system and projection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1968286A CN1968286A (en) | 2007-05-23 |
| CN100594708C true CN100594708C (en) | 2010-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510123660A Expired - Fee Related CN100594708C (en) | 2005-11-18 | 2005-11-18 | Projector, projection system and projection method |
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| Country | Link |
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| CN (1) | CN100594708C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222418A (en) * | 2011-06-24 | 2011-10-19 | 上海华师京城高新技术开发有限公司 | Electronic whiteboard classroom teaching system based on wireless network connection |
| CN102740032A (en) * | 2012-06-08 | 2012-10-17 | 深圳市亿思达显示科技有限公司 | Split projection system |
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2005
- 2005-11-18 CN CN200510123660A patent/CN100594708C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1968286A (en) | 2007-05-23 |
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Granted publication date: 20100317 Termination date: 20201118 |