CN103533098A - DLNA (Digital Living Network Alliance) device discovery method, DLNA device discovery device and DLNA device discovery system thereof - Google Patents
DLNA (Digital Living Network Alliance) device discovery method, DLNA device discovery device and DLNA device discovery system thereof Download PDFInfo
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Abstract
The invention is applicable to the field of DLNA technology, and provides a DLNA device discovery method, a DLNA device discovery device and a DLNA device discovery system thereof, wherein the DLNA device discovery method includes the following steps that DLNA function identification is carried out on devices in a wireless device list in a hand-held terminal in order to identify DLAN devices; the related information of the DLNA devices is obtained; and according to the obtained related information of the DLNA devices, corresponding DLNA device objects are created. The DLNA device discovery method, the DLNA device discovery device and the DLNA device discovery system thereof, which are provided by the invention, do not require the second handshake between the hand-held terminal and the DLNA devices, thus increasing the efficiency and reliability of DLNA device discovery.
Description
Technical field
The invention belongs to DLNA technical field, relate in particular to a kind of method, device and system thereof of DLNA device discovery.
Background technology
DLNA (Digital Living Network Alliance, being designated hereinafter simply as DLNA) company such as Shi You Sony, Intel, Microsoft initiates to set up, and is intended to solve PC (PC), consumer appliances and handheld terminal interconnecting at interior wireless network and cable network.
The DLNA equipment of employing DLNA agreement conventionally can be realized in particular range and share, stores and access digital music, manage like a cork, browse, print and share digital photos, in addition, can also carry the film of liking to appreciate out of doors, and to being recorded and reset by the content of multi-user access.
While stating function in realization, DLNA selects various technology and the agreement very widely applied at present conventionally, and whole application specifies is become to 5 functional planes, be followed successively by from top to bottom: network interconnection, procotol, media delivery, the discovery control and management of equipment, media formats.
At present, the technical scheme adopting for the discovery control and management of DLNA equipment is: handheld terminal (, need to be connected to the DLNA terminal of DLNA equipment) according to multicast address, send message, DLNA equipment compares with the message of DLNA device memory storage after receiving this message, if coupling, sends receive the response (comprising self information) to handheld terminal, handheld terminal receive this receive the response after DLNA device discovery procedure finish.
Specifically, handheld terminal (Control Point) sends search instruction (that is, M-SEARCH instruction) in multicast address; DLNA equipment receives after the search instruction of handheld terminal transmission, by User Datagram Protoco (UDP) (User Datagram Protocol, be designated hereinafter simply as UDP) to handheld terminal, send and confirm notice, it is exactly the equipment that handheld terminal will be searched for to inform handheld terminal; Handheld terminal receives the confirmation after notice, and the request of obtaining descriptor is sent to DLNA equipment; DLNA equipment receives after this request, and descriptor is sent back to handheld terminal; So far, handheld terminal finishes the discovery flow process of DLNA equipment.
The discover method of DLNA equipment described above has been used UDP to carry out alternately, being easy to occur the situation of packet loss in multicast, and can cause DLNA equipment to be found, reliability is low; In addition, owing to needing to carry out secondary between handheld terminal and DLNA equipment, shake hands, therefore, its inefficiency.
Summary of the invention
The object of the present invention is to provide a kind of method, device and system thereof of DLNA device discovery, be intended to solve the technical problem of the low and inefficiency of existing DLNA device discovery reliability.
The present invention is achieved in that a kind of method of DLNA device discovery, comprising: the wireless device in the wireless device list of handheld terminal is carried out to DLNA identification of function, to identify the step of DLNA equipment; Obtain the step of the relevant information of described DLNA equipment; And the step that creates corresponding DLNA device object according to the relevant information of the described DLNA equipment getting.
Preferably, described handheld terminal is identified described wireless device according to the service set of described wireless device.
Preferably, described handheld terminal is identified described wireless device according to field relevant to DLNA in the described service set of described wireless device.
Preferably, described handheld terminal obtains the relevant information of described DLNA equipment by the mode of route or access point.
Preferably, the relevant information of described DLNA equipment comprises IP address and the general unique identifier of described DLNA equipment.
Preferably, in the described step of obtaining the relevant information of described DLNA equipment, also comprise before: the step that does not comprise the public DLNA device object of DLNA facility information according to DLNA standard-creation.
The device that another object of the present invention is to provide a kind of DLNA device discovery, comprising: identification module, carries out DLNA identification of function to the equipment in the wireless device list of the device of described DLNA device discovery, to identify DLNA equipment; Acquisition of information module, the described DLNA equipment identifying according to described identification module, obtains the relevant information of described DLNA equipment; And Object Creation module, according to the relevant information of described DLNA equipment, create corresponding DLNA device object.
Preferably, also comprise: memory module, preserve described DLNA device object.
Preferably, the device of described DLNA device discovery is mobile phone or panel computer, and described DLNA equipment is Set Top Box, digital TV integrated machine or television rod.
A further object of the present invention is to provide a kind of system of DLNA device discovery, comprises the device of above-described DLNA device discovery.
The method of DLNA device discovery provided by the invention, device and system thereof, do not need to carry out secondary between handheld terminal and DLNA equipment and shake hands, and improved efficiency and the reliability of DLNA device discovery.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the method flow diagram of the DLNA device discovery that provides of one embodiment of the invention.
Fig. 2 is the method flow diagram of the DLNA device discovery that provides of another embodiment of the present invention.
Fig. 3 is the structural representation of the device of the DLNA device discovery that provides of one embodiment of the invention.
Fig. 4 is the structural representation of the system of the DLNA device discovery that provides of one embodiment of the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the method flow diagram of the DLNA device discovery that provides of one embodiment of the invention.As shown in Figure 1, the method 100 of DLNA device discovery comprises the following steps:
Step S101: the equipment in the wireless device list of handheld terminal is carried out to DLNA identification of function, to identify DLNA equipment.Specifically, obtaining the wireless device list of handheld terminal, and the equipment in wireless device list is carried out to DLNA identification of function, is the DLNA equipment with DLNA function to identify which wireless device in wireless device list.In preferred embodiment, handheld terminal is service set (the Service Set Identifier according to wireless device, be designated hereinafter simply as SSID) wireless device is identified, furthermore, can to wireless device, identify according to field relevant to DLNA in SSID.In addition, DLNA equipment can be the equipment such as Set Top Box, digital TV integrated machine, television rod (DONGLE); Handheld terminal can be the mobile terminals such as mobile phone, panel computer.
Step S103: the relevant information of obtaining DLNA equipment.Specifically, handheld terminal is by route or access point (Access Point, AP) mode is obtained the relevant information of DLNA equipment, wherein, the relevant information of DLNA equipment comprises the IP address of equipment, the general unique identifier of equipment (Universally Unique Identifier, is designated hereinafter simply as UUID) etc.
Step S105: create corresponding DLNA device object according to the relevant information of the DLNA equipment getting.Specifically, according to DLNA standard, and according to the relevant information of the DLNA equipment getting, create the DLNA device object of the relevant information of the accessed DLNA equipment of correspondence.
Step S107: preserve DLNA device object, so that user uses while selecting.
Visible in the method 100 of DLNA device discovery as shown in Figure 1, owing to not needing to carry out secondary between handheld terminal and DLNA equipment, do not shake hands yet, therefore, can improve its efficiency; In addition, because handheld terminal is to obtain DLNA equipment by the mode of route or access point, there will not be the situation of packet loss, therefore, improved reliability.
Refer to Fig. 2, Fig. 2 is the method flow diagram of the DLNA device discovery that provides of another embodiment of the present invention.As shown in Figure 2, the method 200 of DLNA device discovery comprises the following steps:
Step S201: the equipment in the wireless device list of handheld terminal is carried out to DLNA identification of function, to identify DLNA equipment.Specifically, obtaining the wireless device list of handheld terminal, and the equipment in wireless device list is carried out to DLNA identification of function, is the DLNA equipment with DLNA function to identify which wireless device in wireless device list.In preferred embodiment, handheld terminal is according to the SSID of wireless device, wireless device to be identified, and furthermore, can to wireless device, identify according to field relevant to DLNA in SSID.In addition, DLNA equipment can be the equipment such as Set Top Box, digital TV integrated machine, television rod; Handheld terminal can be the mobile terminals such as mobile phone, panel computer.
Step S203: the public DLNA device object that does not comprise any facility information according to one of DLNA standard-creation.
Step S205: the relevant information of obtaining DLNA equipment.Specifically, handheld terminal obtains the relevant information of DLNA equipment by the mode of route or access point, and wherein, the relevant information of DLNA equipment comprises the IP address of equipment, the UUID of equipment etc.
Step S207: create corresponding DLNA device object according to the relevant information of public DLNA device object and the DLNA equipment that gets.Specifically, be to add in the public DLNA device object creating the relevant information of the DLNA equipment getting to generate the DLNA device object of the relevant information of the accessed DLNA equipment of correspondence in step S203.
Step S209: preserve DLNA device object, so that user uses while selecting.So far, just completed the discovery of a DLNA equipment.
From the method 200 of DLNA device discovery described above, owing to not needing to carry out secondary between handheld terminal and DLNA equipment, do not shake hands yet, therefore, can improve its efficiency; In addition, because handheld terminal is to obtain DLNA equipment by the mode of route or access point, there will not be the situation of packet loss, therefore, improved reliability.
Refer to Fig. 3, Fig. 3 is the structural representation of the device of the DLNA device discovery that provides of one embodiment of the invention.As shown in Figure 3, the device 300 of DLNA device discovery can be handheld terminal, mobile terminal, comprising: mobile phone, panel computer etc.The device 300 of DLNA device discovery comprises: identification module 310, acquisition of information module 320, Object Creation module 330 and memory module 340.
Acquisition of information module 320, the DLNA equipment identifying according to identification module 310, obtains the relevant information of DLNA equipment, comprises the IP address of DLNA equipment, UUID etc.Specifically, acquisition of information module 320 is by router or access point, to obtain the relevant information of DLNA equipment.
Object Creation module 330, creates corresponding DLNA device object according to the relevant information of the DLNA equipment getting.Specifically, Object Creation module 330 is according to DLNA standard, and according to the relevant information of the accessed DLNA equipment of acquisition of information module 320, creates the DLNA device object of the relevant information of the accessed DLNA equipment of correspondence.
From the device 300 of DLNA device discovery described above, owing to not needing to carry out secondary between the device 300 of DLNA device discovery and DLNA equipment, do not shake hands yet, therefore, can improve its efficiency; In addition, because the device 300 of DLNA device discovery is to obtain DLNA equipment by the mode of route or access point, there will not be the situation of packet loss, therefore, improved reliability.
Refer to Fig. 4, Fig. 4 is the structural representation of the system of the DLNA device discovery that provides of one embodiment of the invention.As shown in Figure 4, the system of DLNA device discovery comprises device 300 and the DLNA equipment 400 of the DLNA device discovery shown in Fig. 3.Device 300 and the DLNA equipment 400 of DLNA device discovery are connected, and wherein, the device 300 of DLNA device discovery comprises: identification module 310, acquisition of information module 320, Object Creation module 330 and memory module 340.Its detail refers to the above description to Fig. 3, at this, is not described in detail.
Method, device and the system thereof of the DLNA device discovery that above embodiment provides, do not need to carry out secondary between handheld terminal and DLNA equipment and shake hands, and improved efficiency and the reliability of DLNA device discovery.
It should be noted that, through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential hardware platform by software and realize, and can certainly all by hardware, implement.Understanding based on such, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method for DLNA device discovery, is characterized in that, comprising:
Wireless device in the wireless device list of handheld terminal is carried out to DLNA identification of function, to identify the step of DLNA equipment;
Obtain the step of the relevant information of described DLNA equipment; And
According to the relevant information of the described DLNA equipment getting, create the step of corresponding DLNA device object.
2. the method for DLNA device discovery as claimed in claim 1, is characterized in that, described handheld terminal is identified described wireless device according to the service set of described wireless device.
3. the method for DLNA device discovery as claimed in claim 1, is characterized in that, described handheld terminal is identified described wireless device according to field relevant to DLNA in the described service set of described wireless device.
4. the method for DLNA device discovery as claimed in claim 1, is characterized in that, described handheld terminal obtains the relevant information of described DLNA equipment by the mode of route or access point.
5. the method for DLNA device discovery as claimed in claim 4, is characterized in that, the relevant information of described DLNA equipment comprises IP address and the general unique identifier of described DLNA equipment.
6. the method for DLNA device discovery as claimed in claim 1, is characterized in that, in the described step of obtaining the relevant information of described DLNA equipment, also comprises before:
The step that does not comprise the public DLNA device object of DLNA facility information according to DLNA standard-creation.
7. a device for DLNA device discovery, is characterized in that, comprising:
Identification module, carries out DLNA identification of function to the equipment in the wireless device list of the device of described DLNA device discovery, to identify DLNA equipment;
Acquisition of information module, the described DLNA equipment identifying according to described identification module, obtains the relevant information of described DLNA equipment; And
Object Creation module, creates corresponding DLNA device object according to the relevant information of described DLNA equipment.
8. the device of DLNA device discovery as claimed in claim 7, is characterized in that, also comprises:
Memory module, preserves described DLNA device object.
9. the device of DLNA device discovery as claimed in claim 7, is characterized in that, the device of described DLNA device discovery is mobile phone or panel computer, and described DLNA equipment is Set Top Box, digital TV integrated machine or television rod.
10. a system for DLNA device discovery, is characterized in that, comprises the device of the DLNA device discovery as described in any one in claim 7 to 9.
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| CN201310471913.7A CN103533098A (en) | 2013-10-11 | 2013-10-11 | DLNA (Digital Living Network Alliance) device discovery method, DLNA device discovery device and DLNA device discovery system thereof |
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| CN201310471913.7A CN103533098A (en) | 2013-10-11 | 2013-10-11 | DLNA (Digital Living Network Alliance) device discovery method, DLNA device discovery device and DLNA device discovery system thereof |
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| CN105763930A (en) * | 2014-12-17 | 2016-07-13 | 乐金电子(中国)研究开发中心有限公司 | Method for pushing two-dimensional code of television program, intelligent television, and set top box |
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Application publication date: 20140122 |