CN102377750A - Universal plug-and-play system and operating method thereof - Google Patents
Universal plug-and-play system and operating method thereof Download PDFInfo
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Abstract
The invention relates to a universal plug-and-play system and an operating method thereof. The universal plug-and-play system comprises a universal plug-and-play device and a universal plug-and-play control point, wherein the universal plug-and-play device and the universal plug-and-play control point are suitable for being connected to a network; the universal plug-and-play device is used for supplying at least one kind of service; and the universal plug-and-play control point regularly supplies current state information to the universal plug-and-play device, so the universal plug-and-play device can update the recorded state information of the universal plug-and-play control point. By the universal plug-and-play system and the operating method thereof, the universal plug-and-play device and the universal plug-and-play control point can know the updating of the state information of the universal plug-and-play device and universal plug-and-play control point.
Description
Technical field
The present invention relates to a kind of universal plug and play technique, particularly UPnP system and method for operation thereof.
Background technology
In recent years, the information household appliances dealer all is devoted to the development of UPnP (Universal Plug-and-Play, UPnP) technology, in the hope of letting people can more easily use home electronics.So-called UPnP is a kind of communication protocol, as long as electronic equipment adopts this technology, just can realize the plug-and-play feature of electronic equipment, makes electronic equipment to join automatically to work in the home network and need not carry out complicated setting through manual work.
Shown in Figure 1 is a kind of in order to carry out the UPnP system that the family expenses multimedia is shared.Please with reference to Fig. 1; This UPnP system includes three TVs (indicating with 102,104 and 106 respectively), two WiFi (Wireless Fidelity; Wireless Fidelity) receiver (indicating with 108 and 112 respectively), 110, DVD of a gateway (Gateway) (Digital Video Disc; Video CD) playing device 114,116 and top box of digital machines of HDMI (High-Definition Multimedia Interface, HDMI) (Set Top Box) 118.Below HDMI 116 is called HDMI interface 116.In Fig. 1, solid line is represented to connect with wired mode, and dotted line is represented to connect with wireless mode.
In above-mentioned these electronic equipments, two WiFi receivers and gateway 110 have all adopted the UPnP technology, and this three all connects through the WiFi radio communication and forms a network each other.In these three electronic equipments; Two WiFi receivers are all being played the part of the UPnP control point (Control Point) in the middle of defined two kind equipments of UPnP agreement, and gateway 110 is then being played the part of the UPnP device (Device) in the middle of defined two kind equipments of UPnP agreement.In the definition of UPnP agreement, the UPnP device is in order to providing at least one service, and the UPnP control point is then in order to detecting the service that the UPnP device can provide, and in order to control these services.Through the UPnP agreement, gateway 110 just can be used as the service end of media resource, and two WiFi receivers then can be used as the receiving terminal and the display end of media resource, reaches the purpose and the effect of share media resource.
In the UPnP agreement, definition UPnP control point must reach the up-to-date state information of UPnP device, explain with Fig. 2.Fig. 2 is the method for operation of existing UPnP system.Please be according to the needs of explanation simultaneously with reference to Fig. 2 and Fig. 1.At first, two WiFi receivers can detect exist (shown in the step S202) of gateway 110 in this network.Then, two WiFi receivers all can be obtained the unit describe of gateway 110 through this network, and described unit describe includes 110 services that can provide of gateway (shown in step S204).Can know that by Fig. 1 110 services that can provide of gateway have comprised the DVD broadcast at least, utilize HDMI interface 116 to watch program and utilized top box of digital machine 118 to watch program.After the unit describe of obtaining gateway 110, two WiFi receivers all can be included gateway 110 in management (shown in step S206).Next, two WiFi receivers also can be again obtained the present state information (shown in step S208) of gateway 110 through this network, so that gateway 110 is carried out the control of multimedia share service.
Yet, because in the UPnP agreement, have only definition UPnP control point must reach the up-to-date state information of UPnP device, and situation conversely has no definition.But in the operation of reality, usually can run between UPnP control point and the UPnP device situation of update mode information each other.Below illustrate with UPnP system shown in Figure 1.
Please with reference to Fig. 1.Suppose that two WiFi receivers carry out the operation of playing programs simultaneously, and WiFi receiver 108 is utilizing DVD playing device 114 to play required program.So; Also compete the control of DVD playing device 114 for fear of WiFi receiver 112; And cause vying each other between two WiFi receivers, gateway 110 just must know this two state informations that the WiFi receiver is present, for example know that WiFi receiver 108 is utilizing DVD playing device 114 to play required programs; And know that WiFi receiver 112 also wants to utilize DVD playing device 114 to play required programs, so that coordinate the control authority between them.
Also have a kind of situation, please refer again to Fig. 1.Suppose that two WiFi receivers carry out the operation of playing programs simultaneously, but watch the user of TV 106 TV 106 to be turned off and leave, make WiFi receiver 112 stop the operation of playing programs.So,, thereby constantly WiFi receiver 112 required signals are handled, will be caused the waste of electric power if gateway 110 is not known this situation.
Summary of the invention
One of the object of the invention is to be to provide a kind of UPnP system, and the UPnP control point of this UPnP system and UPnP device no matter who has upgraded state information the other side and can both learn.
One of the object of the invention is the method for operation that is to provide a kind of UPnP system, and it is applicable to aforesaid UPnP system.
The present invention proposes a kind of UPnP system, and this UPnP system includes UPnP device and UPnP control point.Described UPnP device and UPnP control point all are suitable for being connected to a network.Wherein, the UPnP device is in order to provide at least one service.And described UPnP control point can regularly provide present state information to the UPnP device, so that the state information at the UPnP control point that the UPnP apparatus updates is write down.
In the described UPnP of the present invention's one preferred embodiment system, when the UPnP control point detected existing of above-mentioned UPnP device in above-mentioned network, in management was just included the UPnP device in the UPnP control point.
In the described UPnP of the present invention's one preferred embodiment system; When the UPnP control point detects existing of above-mentioned UPnP device in above-mentioned network; The unit describe of UPnP device is just obtained at the UPnP control point through above-mentioned network; So that include the UPnP device in management, wherein this unit describe includes the service that the UPnP device can provide.
In the described UPnP of the present invention's one preferred embodiment system, the present state information of UPnP device is also obtained through above-mentioned network in above-mentioned UPnP control point.
The present invention proposes the method for operation of a kind of UPnP system in addition, and described UPnP system includes UPnP device and UPnP control point, and described UPnP device and UPnP control point all are suitable for being connected to a network, and this UPnP device is in order to provide at least one service.The method comprises: when the UPnP control point detects existing of above-mentioned UPnP device in above-mentioned network, make the UPnP control point include the UPnP device in management; And make the UPnP control point state information that it is present offer the UPnP device, so that the state information at the UPnP control point that the UPnP apparatus updates is write down.
In the described method of operation of the present invention's one preferred embodiment; After the UPnP control point detects the existence of above-mentioned UPnP device; More comprise and carry out following step: make the UPnP control point obtain the unit describe of UPnP device through above-mentioned network, wherein this unit describe includes the service that the UPnP device can provide.
The present invention is after in management is included the UPnP device in the UPnP control point, further makes the UPnP control point regularly provide its present state information to the UPnP device, so that the state information at the UPnP control point that the UPnP apparatus updates is write down.In addition, the present invention also makes the UPnP control point obtain the present state information of UPnP device through above-mentioned network.Thus, the UPnP control point of UPnP system proposed by the invention and UPnP device no matter who upgraded state information the other side and can both learn.
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 let of the present invention above-mentioned with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is a kind of in order to carry out the UPnP system that the family expenses multimedia is shared.
Fig. 2 is the method for operation of existing UPnP system.
Fig. 3 is the method for operation according to the UPnP system of the present invention's one preferred embodiment.
Fig. 4 is an execution mode of the operating process of UPnP device of the present invention.
Fig. 5 is the execution mode of detail operations flow process of the step S406 of Fig. 4.
Fig. 6 is an execution mode of the operating process of UPnP of the present invention system.
[main element symbol description]
102,104,106: TV
108,112:WiFi receiver
110: gateway
The 114:DVD playing device
The 116:HDMI interface
118: top box of digital machine
S202～S208, S302～S310, S402～S410, S406-1～S406-3: step
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 UPnP system and its embodiment of method of operation, method, step, structure, characteristic and the effect that proposes according to the present invention, specify 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.
The difference of newer for ease UPnP system and existing UPnP system, the hardware structure that UPnP system proposed by the invention will continue to use UPnP system shown in Figure 1 describes.
Please with reference to Fig. 1.In UPnP system proposed by the invention, two WiFi receivers and gateway 110 have all adopted the UPnP technology, and this three connects through the WiFi radio communication to form a network each other.In these three electronic equipments, two WiFi receivers are all being played the part of the defined UPnP of UPnP agreement control point, and gateway 110 is then being played the part of the defined UPnP device of UPnP agreement.Through the UPnP agreement, gateway 110 just can be used as the service end of media resource, and two WiFi receivers then can be used as the receiving terminal and the display end of media resource, reaches the purpose and the effect of share media resource.
Fig. 3 is the method for operation according to the UPnP system of the present invention's one preferred embodiment.Please be according to the needs of explanation simultaneously with reference to Fig. 3 and Fig. 1.At first, two WiFi receivers can detect exist (shown in the step S302) of gateway 110 in this network.Then, two WiFi receivers all can be obtained the unit describe of gateway 110 through this network, and described unit describe includes 110 services that can provide of gateway (shown in step S304).Can know that by Fig. 1 110 services that can provide of gateway have comprised the DVD broadcast at least, utilize HDMI interface 116 to watch program and utilized top box of digital machine 118 to watch program.After the unit describe of obtaining gateway 110, two WiFi receivers all can be included gateway 110 in management (shown in step S306).
Next, two WiFi receivers also can be again obtained the present state information (shown in step S308) of gateway 110 through this network, so that gateway 110 is carried out the control of multimedia share service.Then, two WiFi receivers also can send present state information own to gateway 110 through this network again, so that gateway 110 upgrades the state information (shown in step S310) of two WiFi receivers that write down.Thus, gateway 110 also can be operated management and control according to these two present state informations of WiFi receiver.
Know according to above-mentioned, in the UPnP agreement that UPnP of the present invention system is adopted, just do not define the UPnP control point must reach the up-to-date state information of UPnP device, also define the UPnP control point and must up-to-date state information itself be conveyed to the UPnP device.Therefore, must know the situation of latest state information each other even in the operation of reality, run between UPnP control point and the UPnP device, both sides still can learn.Below illustrate with UPnP system shown in Figure 1 again.
Please with reference to Fig. 1.Suppose that two WiFi receivers carry out the operation of playing programs simultaneously, and WiFi receiver 108 is utilizing DVD playing device 114 to play required program.Because two WiFi receivers all can be informed gateway 110 with present state information itself; For example WiFi receiver 108 informs that gateway 110 itself is utilizing DVD playing device 114 to play required programs; WiFi receiver 112 informs that then gateway 110 itself also wanted to utilize DVD playing device 114 to play required programs; Gateway 110 just can go to coordinate the control authority between them so; Avoiding WiFi receiver 112 also to go to compete the control of DVD playing device 114, and cause vying each other between two WiFi receivers 112.
Lift an example again, please refer again to Fig. 1.Suppose that two WiFi receivers carry out the operation of playing programs simultaneously, but watch the user of TV 106 TV 106 to be turned off and leave, make WiFi receiver 112 stop the operation of playing programs.Because WiFi receiver 112 can present state information itself be informed gateway 110, thereby so gateway 110 can learn that this situation interrupts the processing to WiFi receiver 112 desired signals.Thus, just can not cause the waste of electric power.
Although in above-mentioned explanation, be the mode of operation that the hardware structure of the UPnP system shared with the family expenses multimedia is explained UPnP of the present invention system, be not in order to limit the hardware structure of UPnP of the present invention system.In addition, expansion ground, UPnP of the present invention system also can be applicable in internet and other the LAN except can be applicable to home network, for example is to be applied in the network of institute of intra-company framework.
Fig. 4 is an execution mode of the operating process of UPnP device of the present invention.Please with reference to Fig. 4, at first, the UPnP device can receive from the instruction of the more new element at UPnP control point (shown in step S402).Then, the UPnP device can be carried out the operation of " relevant information that detects and write down the UPnP control point ", and so-called relevant information comprises the attribute and the state information (shown in step S404) at UPnP control point.Then, whether still on line the UPnP device can go to judge UPnP control point (shown in step S406).When the UPnP device is judged the UPnP control point not on line the time, will with the UPnP control point not on line information write down (shown in step S408); Otherwise, judge the UPnP control point when the UPnP device and still on line the time, will go to upgrade the relevant information at UPnP control point, and the overtime time counting value of timer is set at maximum (shown in step S410).The effect of timer and overtime time counting value thereof will be detailed with Fig. 5.
Fig. 5 is the execution mode of detail operations flow process of the step S406 of Fig. 4.Please with reference to Fig. 5, after execution of step S404, the UPnP device can go to judge whether to obtain the relevant information (shown in step S406-1) at UPnP control point.When being judged as when being, the UPnP device will subsequent execution in step S410; Otherwise when being judged as not, the UPnP device will go further to judge whether the overtime time counting value of timer is zero (shown in step S406-2).When judging that overtime time counting value is non-vanishing, the UPnP device will be waited for a scheduled time earlier (like step S406-3), and then gets back to step S406-1; Otherwise when judging that overtime time counting value is zero, the UPnP device will subsequent execution in step S408, and the relevant information at deletion UPnP control point.It should be noted that the described scheduled time of step S406-3 is the maximum much smaller than the overtime time counting value of timer.
Fig. 6 is an execution mode of the operating process of UPnP of the present invention system.Please with reference to Fig. 6, at first, the UPnP device can be informed the existence of itself to the UPnP control point.Then, the UPnP control point can be described to UPnP matching requirements acquisition device.Then, the UPnP device can be described to the control point responding device.In management will be included the UPnP device in the UPnP control point after the unit describe of obtaining the UPnP device.Next, the UPnP control point can be to UPnP device subscription-related information and service.Then, the UPnP device can be to UPnP control point response relevant information and service.Then, the UPnP device can send the variable of initialization relevant information and service to the UPnP control point again.Then, the UPnP control point can be upgraded the relevant information at UPnP control point to the UPnP matching requirements.Next, the UPnP device can be carried out and upgrade operation.Then, the UPnP device can upgrade to UPnP control point response message.In Fig. 5, by dotted line institute frame two actions that come being shown promptly is that UPnP system of the present invention and existing UPnP system are in operational difference.
Through above-mentioned teaching, this area has common knowledge the knowledgeable and in the method for operation that can summarize aforementioned UPnP system, includes following basic step, and these basic steps have explained that UPnP system of the present invention and existing UPnP system are in operational difference.And said as the related description of aforementioned UPnP system, this UPnP system includes a UPnP device and a UPnP control point.This UPnP device and UPnP control point all are suitable for being connected to a network, and the UPnP device is in order to provide at least one service.The basic step of the method includes: when the UPnP control point detects existing of above-mentioned UPnP device in above-mentioned network, make the UPnP control point include the UPnP device in management; And make the UPnP control point state information that it is present offer the UPnP device, so that the state information at the UPnP control point that the UPnP apparatus updates is write down.
Hold above-mentioned; Wherein after the UPnP control point detects the existence of above-mentioned UPnP device; Also comprise and carry out following step: make the UPnP control point obtain the unit describe of UPnP device through this network, wherein this unit describe includes the service that the UPnP device can provide.
In addition, aforesaid network comprises a LAN, and the UPnP device can adopt a gateway to implement, and then can adopt a WiFi receiver to implement as for the UPnP control point.
In sum, the present invention is after in management is included the UPnP device in the UPnP control point, further makes the UPnP control point regularly provide its present state information to the UPnP device, so that the state information at the UPnP control point that the UPnP apparatus updates is write down.In addition, the present invention also makes the UPnP control point obtain the present state information of UPnP device through above-mentioned network.Thus, the UPnP control point of UPnP system proposed by the invention and UPnP device no matter who upgraded state information the other side and can both learn.
The above only is preferred embodiment of the present invention, is not 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 limiting 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 of above-mentioned announcement capable of using 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, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (9)
1. UPnP system comprises:
One universal plug and play devices is suitable for being connected to a network, in order at least one service to be provided; And
One universal plug and play control point; Be suitable for being connected to this network; And regularly provide the present state information of this universal plug and play control point to this universal plug and play devices, so that this universal plug and play devices upgrades the state information of this universal plug and play control point that is write down.
2. UPnP according to claim 1 system; It is characterized in that: when this universal plug and play control point detected existing of this universal plug and play devices in this network, this universal plug and play control point was just included this universal plug and play devices in management.
3. UPnP according to claim 2 system; It is characterized in that: when this universal plug and play control point detects existing of this universal plug and play devices in this network; This universal plug and play control point is just obtained a unit describe of this universal plug and play devices through this network; So that include this universal plug and play devices in management, wherein this unit describe includes the service that this universal plug and play devices can provide.
4. UPnP according to claim 1 system, it is characterized in that: this universal plug and play control point is also obtained the present state information of this universal plug and play devices through this network.
5. UPnP according to claim 1 system, it is characterized in that: this network comprises a LAN.
6. UPnP according to claim 1 system, it is characterized in that: this universal plug and play devices comprises a gateway.
7. UPnP according to claim 1 system, it is characterized in that: this universal plug and play control point comprises a WiFi receiver.
8. the method for operation of a UPnP system; Said UPnP system comprises a universal plug and play devices and a universal plug and play control point; This universal plug and play devices and this universal plug and play control point all are suitable for being connected to a network; And this universal plug and play devices is in order to provide at least one service, and the method for operation of this UPnP system comprises:
When this universal plug and play control point detects existing of this universal plug and play devices in this network, make this universal plug and play control point include this universal plug and play devices in management; And
Make this universal plug and play control point state information that it is present offer this universal plug and play devices, so that this universal plug and play devices upgrades the state information of this universal plug and play control point that is write down.
9. the method for operation of UPnP according to claim 8 system is characterized in that:
After this universal plug and play control point detects the existence of this universal plug and play devices, also comprise and carry out following step:
Make this universal plug and play control point obtain a unit describe of this universal plug and play devices through this network, wherein this unit describe includes the service that this universal plug and play devices can provide.
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| CN2010102577636A CN102377750A (en) | 2010-08-19 | 2010-08-19 | Universal plug-and-play system and operating method thereof |
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| CN2010102577636A CN102377750A (en) | 2010-08-19 | 2010-08-19 | Universal plug-and-play system and operating method thereof |
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| KR20080112914A (en) * | 2007-06-22 | 2008-12-26 | 삼성전자주식회사 | Event message receiving method, event message transmission method, controlled device and control point |
| CN101610293A (en) * | 2008-06-16 | 2009-12-23 | 松下电器产业株式会社 | Control method, control point equipment, equipment and system |
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Application publication date: 20120314 |