CN111405042A - Discovery method and device of electronic equipment, computer readable storage medium and electronic device - Google Patents
Discovery method and device of electronic equipment, computer readable storage medium and electronic device Download PDFInfo
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- CN111405042A CN111405042A CN202010184537.3A CN202010184537A CN111405042A CN 111405042 A CN111405042 A CN 111405042A CN 202010184537 A CN202010184537 A CN 202010184537A CN 111405042 A CN111405042 A CN 111405042A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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Abstract
The application relates to a discovery method and device of electronic equipment, a computer readable storage medium and an electronic device, wherein the method comprises the following steps: acquiring an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording an MAC address and an IP address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network; acquiring a target IP address corresponding to a target MAC address from an address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment; accessing a device description file of the target electronic device through the target IP address; and acquiring the operation and control service provided by the target electronic equipment from the equipment description file. The method and the device solve the technical problem that the obtaining efficiency is low when the equipment is used for controlling the service in the related technology.
Description
Technical Field
The present application relates to the field of computers, and in particular, to a method and an apparatus for discovering an electronic device, a computer-readable storage medium, and an electronic apparatus.
Background
Against the development of the technology, the electronic equipment and the electronic equipment can be connected and controlled, and the control end equipment can obtain the control service provided by the control end equipment. However, in the existing scheme for controlling and acquiring the device, on one hand, packet loss may occur due to unreliable network, or the electronic device providing the control service may also be disabled by the router, resulting in a problem that the device control service cannot be acquired or is acquired slowly. On the other hand, since the IP of the electronic device providing the operation and control service may change frequently, the information in the transmitted message is inaccurate, and the electronic device providing the operation and control service cannot be identified, so that the device operation and control service cannot be acquired. Therefore, the stability of the scheme for acquiring the equipment control service in the prior art is poor, and the efficiency for acquiring the equipment control service is low.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The application provides a method and a device for discovering electronic equipment, a computer readable storage medium and an electronic device, which are used for at least solving the technical problem of low acquisition efficiency when acquiring the control service of the electronic equipment in the related technology.
According to an aspect of an embodiment of the present application, there is provided a method for discovering an electronic device, including:
the method comprises the steps of obtaining an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network;
acquiring a target IP address corresponding to a target MAC address from the address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment;
accessing a device description file of the target electronic device through the target IP address;
and acquiring the control service provided by the target electronic equipment from the equipment description file.
According to another aspect of the embodiments of the present application, there is also provided an apparatus for discovering an electronic device, including:
the first acquisition module is used for acquiring an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is electronic equipment connected with the local area network;
a second obtaining module, configured to obtain a target IP address corresponding to a target MAC address from the address resolution protocol table, where the target MAC address is used to identify a target electronic device discovered by the first electronic device in the local area network, and the second electronic device includes the target electronic device;
the access module is used for accessing the device description file of the target electronic device through the target IP address;
and the third acquisition module is used for acquiring the control service provided by the target electronic equipment from the equipment description file.
According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium including a stored program which, when executed, performs the above-mentioned method.
According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the above method through the computer program.
In the embodiment of the application, an address resolution protocol table of a local area network connected with a first electronic device is obtained, wherein the address resolution protocol table is used for recording an MAC address and an IP address of a second electronic device, and the second electronic device is other electronic devices connected with the local area network; acquiring a target IP address corresponding to a target MAC address from an address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment; accessing a device description file of the target electronic device through the target IP address; and acquiring the mode of the operation and control service provided by the target electronic equipment from the equipment description file.
The target MAC address is the MAC address of the target electronic equipment found by the first electronic equipment in the local area network, the target IP address corresponding to the target MAC address is obtained from the address resolution protocol table by obtaining the address resolution protocol table of the local area network, whether the target electronic equipment is on line in the local area network is determined, the equipment description file of the target electronic equipment is accessed through the target IP address recorded in the address resolution protocol table so as to obtain the control service provided by the target electronic equipment, because the target IP address is the IP address recorded in the address resolution protocol table, namely, the target electronic equipment is using the target IP address to connect the local area network, the equipment description file of the target electronic equipment can be accessed by using the target IP address, the aim of improving the success rate of the access of the equipment description file is achieved, and meanwhile, the control service of the electronic equipment is obtained by directly using the target IP address to access the equipment description file, the process that the electronic equipment is discovered by broadcasting through protocols such as SSDP and the like is avoided, and time is saved. Therefore, the technical effect of improving the acquisition efficiency when the electronic equipment control service is acquired is achieved by improving the success rate of equipment description file access and saving the time for discovering the control service, and the technical problem of low acquisition efficiency when the electronic equipment control service is acquired in the related art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a hardware environment of a discovery method of an electronic device according to an embodiment of the present application;
FIG. 2 is a flow chart of an alternative electronic device discovery method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a discovery process for an electronic device according to an alternative embodiment of the present application;
fig. 4 is a first schematic diagram of an alternative discovery apparatus of an electronic device according to an embodiment of the present application;
fig. 5 is a second schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application;
fig. 6 is a third schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application;
fig. 7 is a fourth schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application;
fig. 8 is a fifth schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application;
fig. 9 is a sixth schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application;
fig. 10 is a seventh schematic diagram of an alternative discovery apparatus for an electronic device according to an embodiment of the present application;
fig. 11 is a block diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an aspect of embodiments of the present application, an embodiment of a method for discovery of an electronic device is provided.
Alternatively, in this embodiment, the discovery method of the electronic device may be applied to a hardware environment formed by the terminal 101 and the terminal 103 as shown in fig. 1. As shown in fig. 1, both the terminal 101 and the terminal 103 are connected to a local area network, which may be used to provide network services for the terminal or a client installed on the terminal, and may set a database on a server or independent of the server to provide data storage services for the server 103, where the terminal 101 is not limited to a PC, a mobile phone, a tablet computer, and the like, and the terminal 103 may be, but is not limited to, a screen projection device, a smart television, a smart speaker, and the like. The method for discovering the electronic device according to the embodiment of the present application may be executed by the terminal 101, the terminal 101 may be, but is not limited to be, equivalent to the first electronic device in the method for discovering the electronic device according to the embodiment of the present application, and the terminal 103 may be, but is not limited to be, equivalent to the target electronic device in the method for discovering the electronic device according to the embodiment of the present application. The terminal 101 executing the discovery method of the electronic device according to the embodiment of the present application may also be executed by a client installed thereon.
Fig. 2 is a flowchart of an alternative method for discovering an electronic device according to an embodiment of the present application, and as shown in fig. 2, the method may include the following steps:
step S202, obtaining an address resolution protocol table of a local area network connected with a first electronic device, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of a second electronic device, and the second electronic device is other electronic devices connected with the local area network;
step S204, a target IP address corresponding to a target MAC address is obtained from the address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment;
step S206, accessing the device description file of the target electronic device through the target IP address;
step S208, obtaining the operation service provided by the target electronic device from the device description file.
Through the above steps S202 to S208, the target MAC address is the MAC address of the target electronic device found in the lan by the first electronic device, the target IP address corresponding to the target MAC address is obtained from the address resolution protocol table by obtaining the address resolution protocol table of the lan, it is determined whether the target electronic device is online in the lan, and the device description file of the target electronic device is accessed through the target IP address recorded in the address resolution protocol table to obtain the operation service provided by the target electronic device, since the target IP address is the IP address recorded in the address resolution protocol table, that is, the target electronic device is connecting to the lan using the target IP address, the device description file of the target electronic device can be accessed using the target IP address, thereby achieving the purpose of improving the success rate of accessing the device description file, and at the same time, the operation service of the electronic device is obtained by directly accessing the device description file using the target IP address, the process that the electronic equipment is discovered by broadcasting through protocols such as SSDP and the like is avoided, and time is saved. Therefore, the technical effect of improving the acquisition efficiency when the electronic equipment control service is acquired is achieved by improving the success rate of equipment description file access and saving the time for discovering the control service, and the technical problem of low acquisition efficiency when the electronic equipment control service is acquired in the related art is solved.
In the technical solution provided in step S202, the address resolution protocol table is an arp (address resolution protocol) table, and the address resolution protocol table is used for recording the MAC address and the IP address of the second electronic device connected to the local area network.
Optionally, in this embodiment, the discovery method of the electronic device may be used in a scenario in which electronic devices control each other, such as: the mobile phone can be connected to electronic equipment such as a screen projection device and a smart television, and displays data such as video, audio and text on display equipment such as a television, a display and a projector. The first electronic device is a control terminal device, that is, the first electronic device obtains a device control service provided by the other electronic device by connecting the other electronic device, and can perform corresponding operation and control on the device providing the control service.
Optionally, in this embodiment, the first electronic device may include, but is not limited to: the mobile phone, the PC, the tablet computer, the intelligent wearable device, the intelligent home device and the like have electronic equipment with functions of controlling other equipment. The target electronic device may include, but is not limited to: the system comprises screen projection equipment, a set top box, a smart television, a smart sound box, a projector and other electronic equipment capable of providing control services for other equipment.
In the technical solution provided in step S204, the first electronic device stores the target MAC address of the target electronic device found in the local area network. The target electronic device may be, but is not limited to, one or more electronic devices, and the target MAC address is a MAC address of each of the target electronic devices.
In the technical solution provided in step S206, since the target IP address is obtained from the address resolution protocol table, it can be considered that the target IP address is an IP address being used by the target electronic device, and the success rate of accessing the device description file of the target electronic device through the target IP address is greatly improved.
Optionally, in this embodiment, the device description file of the target electronic device is used to provide device information of the target electronic device. Such as: configuration information, network connection information, capability information, etc. of the target electronic device.
In the technical solution provided in step S208, the operation service provided by the target electronic device may include, but is not limited to: screen projection services, file transfer services, remote operation services, and the like. The operation service provided by the target electronic device may be, but is not limited to, recorded in the capability information of the target electronic device in the device description file.
As an optional embodiment, before obtaining the destination IP address corresponding to the destination MAC address from the address resolution protocol table, the method further includes:
s11, obtaining the IP address carried in the SSDP message from the LAN;
s12, obtaining the MAC address to be processed corresponding to the IP address carried by the SSDP message from the address resolution protocol table;
s13, searching the MAC address to be processed from the target MAC address stored in the first electronic equipment;
and S14, when the MAC address to be processed is not found, acquiring a second device description file address carried by the SSDP message, and correspondingly storing the MAC address to be processed and the second device description file address in the first electronic device.
Optionally, in this embodiment, the first obtaining of the device handling Service may be, but is not limited to, in a mode of SSDP (Simple Service Discovery Protocol). In the subsequent process of acquiring the device control service again, an SSDP mode and an MAC address mode can be simultaneously adopted to improve the success rate and speed of acquiring the device control service.
Optionally, in this embodiment, the manner of acquiring the SSDP message may include, but is not limited to, one of the following:
in the first mode, after a control end device accesses the network, it can send a "SSDP: discover" message to the SSDP port of a specific multicast address by using the M-SEARCH method. When the controlled end device monitors that the reserved multicast address has the message sent by the control end, the controlled end device analyzes the control service requested by the control end, and if the controlled end device can provide the control service requested by the control end, the controlled end device directly responds to the request of the control end in a unicast mode. The message unicast by the controlled end device may be the SSDP message.
In the second mode, when a controlled end device accesses the network, the controlled end device can send a "SSDP: alive" message to an SSDP port of a specific multicast address by using a NOTIFY method, and the controlled end device also processes the monitored message according to the policy of the controlled end device. And the control end equipment acquires the equipment information of the controlled end through the equipment description file address in the message to update the equipment. The message that the control end device hears may be, but is not limited to, the SSDP message.
As an optional embodiment, the obtaining the destination IP address corresponding to the destination MAC address from the address resolution protocol table includes:
s21, comparing each candidate MAC address stored in the address resolution protocol table with the target MAC address;
and S22, acquiring the IP address corresponding to the MAC address which is compared and consistent from the address resolution protocol table as the target IP address.
Optionally, in this embodiment, the process of comparing each candidate MAC address with the target MAC address may be, but is not limited to, a process of determining whether each candidate MAC address is the same as the target MAC address, and the comparison may be performed in a character matching manner. And taking the MAC address which is the same as the target MAC address in the candidate MAC addresses as a compared and consistent MAC address, and acquiring the corresponding IP address as the target IP address.
Optionally, in this embodiment, if a MAC address in each candidate MAC address is aligned with a target MAC address, it may be determined that the target electronic device is on-line in the local area network, that is, the target electronic device is allowed to be discovered, and the discovery operation of the target electronic device may be performed by acquiring an IP address corresponding to the aligned MAC address as the target IP address.
As an alternative embodiment, accessing the device description file of the target electronic device through the target IP address includes:
s31, acquiring a first device description file address corresponding to the target MAC address from the MAC address and the device description file address which are stored in the first electronic device and have the corresponding relation;
s32, replacing the IP address in the first device description file address with the target IP address to obtain a target device description file address;
and S33, accessing the device description file by accessing the target device description file address.
Optionally, in this embodiment, the MAC address and the device description file address having a corresponding relationship may be stored in the first electronic device, and the obtained target IP address is used to replace an IP address in the first device description file address corresponding to the target MAC address, so that the target device description file address corresponding to the target electronic device currently in the online state may be obtained. Since the IP address used by the target device profile address is the target IP address used by the target electronic device to connect to the local area network, that is, the target device profile address is the device profile address currently used by the target electronic device, the device profile of the target electronic device can be accessed more accurately by accessing the target device profile address.
As an optional embodiment, the obtaining, from the device description file, the manipulation service provided by the target electronic device includes:
s41, acquiring the control service provided by the target electronic equipment from the equipment description file under the condition of accessing the address of the target equipment description file;
s42, under the condition that the target device description file address is not accessed, the access to the target device description file address is initiated at target time intervals until the target device description file address is accessed, and the operation service provided by the target electronic device is obtained from the device description file.
Optionally, in this embodiment, if the target device description file address can be accessed, it may be determined that the controlled end (i.e., the target electronic device) has been found, and device information of the controlled end (e.g., a manipulation service provided by the target electronic device) may be read from the device description file.
Optionally, in this embodiment, if the description file address of the target device is not accessed, the access may be performed again at intervals (i.e., target time) until the process of acquiring the manipulation service provided by the target electronic device is continuously performed after the access. Therefore, the success rate of obtaining the equipment control service is improved.
As an optional embodiment, after obtaining the manipulation service provided by the target electronic device from the device description file, the method further includes:
s51, sending a service request to the target electronic device, where the service request is used to request the target electronic device to provide the handling service;
s52, receiving response information returned by the target electronic equipment in response to the service request;
s53, if the response information indicates that the first electronic device is allowed to be provided with the handling service, executing an operation corresponding to the handling service.
Optionally, in this embodiment, after the operation service provided by the target electronic device is acquired, behaviors such as connection and operation between the control terminal and the controlled terminal may be performed. The control end can request the control end to provide the control service for the control end. Such as: the service request sent to the target electronic device may be a screen-casting connection request, response information returned by the target electronic device in response to the screen-casting connection request may be used to indicate that connection with the first electronic device is allowed, and the first electronic device may complete connection with the target electronic device after receiving the response information and transmit a multimedia file or a multimedia data stream that needs screen casting to the target electronic device. The multimedia file or multimedia data stream may be displayed on a screen of the target electronic device, or other display devices (e.g., televisions, displays, projection devices, etc.) may be used to display the multimedia file or multimedia data stream.
As an optional embodiment, the manipulation service includes a screen projection service, where after obtaining the manipulation service provided by the target electronic device from the device description file, the method further includes:
s61, establishing connection with the target electronic equipment;
s62, screen projection data are sent to the target electronic equipment, wherein the screen projection data are used for indicating the target electronic equipment to display the screen projection data.
Optionally, in this embodiment, if the screen projection service is included in the manipulation service, the first electronic device may perform a screen projection operation by connecting with the target electronic device. After the target electronic device receives the screen projection data sent by the first electronic device, if the target electronic device has a display function, for example: the target electronic device may include, but is not limited to: and a smart television, a smart projector and the like, the projection data can be directly displayed on the target electronic device, or the projection data can be displayed by other devices with display functions (such as a television, a projector, a display, a camera device and the like).
Fig. 3 is a schematic diagram of a discovery process of an electronic device according to an alternative embodiment of the present application, and as shown in fig. 3, when an electronic device is discovered for the first time, a control end device (i.e., the first electronic device) may discover a controlled end device by, but not limited to, sending a "SSDP: discover" message to an SSDP port of a specific multicast address by using an M-SEARCH method, and receiving a "SSDP: alive" message sent by a controlled end device (i.e., the target electronic device) to an SSDP port of a specific multicast address by using a NOTIFY method. The control end device detects whether the control end device stores the MAC address and the device description file address of the controlled end device, if not, the MAC address and the device description file address with the corresponding relation are stored to the local of the control end device through files or other modes, and if the MAC address and the device description file address are stored, the MAC address and the device description file address are ignored.
When electronic equipment is found subsequently, the control end equipment acquires an ARP table (namely a corresponding table of an IP address and an MAC address) in a local area network by calling a method provided by the control end equipment system, and then checks whether the MAC address stored locally exists in the ARP table. If the MAC address stored locally is not in the ARP table, the controlled end is considered not to be on-line, and the controlled end can be ignored. If the MAC address stored locally is in the ARP table, because the mapping relation between the MAC address and the IP address is stored in the ARP table, the IP address of the controlled end device can be obtained according to the mapping relation, the IP address in the locally recorded device description file address is replaced, the device description file address used by the controlled end device can be obtained, and then the device description file is accessed directly through the replaced address.
If the device description file can be accessed, the controlled end device can be considered to be discovered, then the device information of the controlled end device can be read from the device description file, and then the actions such as connection and control between the control end device and the controlled end device can be carried out. If the access is not available, the access can be carried out again at intervals until the access is available.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
According to another aspect of the embodiments of the present application, there is also provided a discovery apparatus of an electronic device for implementing the discovery method of the electronic device. Fig. 4 is a schematic diagram of an alternative discovery apparatus of an electronic device according to an embodiment of the present application, as shown in fig. 4, the apparatus may include:
a first obtaining module 42, configured to obtain an address resolution protocol table of a local area network to which a first electronic device is connected, where the address resolution protocol table is used to record a media access control MAC address and an internet protocol IP address of a second electronic device, and the second electronic device is another electronic device connected to the local area network;
a second obtaining module 44, configured to obtain a target IP address corresponding to a target MAC address from the address resolution protocol table, where the target MAC address is used to identify a target electronic device discovered by the first electronic device in the local area network, and the second electronic device includes the target electronic device;
an accessing module 46, configured to access the device description file of the target electronic device through the target IP address;
a third obtaining module 48, configured to obtain, from the device description file, a manipulation service provided by the target electronic device.
It should be noted that the first obtaining module 42 in this embodiment may be configured to execute step S202 in this embodiment, the second obtaining module 44 in this embodiment may be configured to execute step S204 in this embodiment, the accessing module 46 in this embodiment may be configured to execute step S206 in this embodiment, and the third obtaining module 48 in this embodiment may be configured to execute step S208 in this embodiment.
It should be noted here that the modules described above are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the above embodiments. It should be noted that the modules described above as a part of the apparatus may operate in a hardware environment as shown in fig. 1, and may be implemented by software or hardware.
Through the above modules, the target MAC address is the MAC address of the target electronic device found in the local area network by the first electronic device, the target IP address corresponding to the target MAC address is obtained from the address resolution protocol table by obtaining the address resolution protocol table of the local area network, whether the target electronic device is online in the local area network is determined, and the device description file of the target electronic device is accessed through the target IP address recorded in the address resolution protocol table to obtain the operation service provided by the target electronic device, since the target IP address is the IP address recorded in the address resolution protocol table, that is, the target electronic device is connecting to the local area network using the target IP address, the device description file of the target electronic device can be accessed using the target IP address, the purpose of improving the success rate of accessing the device description file is achieved, and meanwhile, the device description file is accessed directly using the target IP address to obtain the operation service of the electronic device, the process that the electronic equipment is discovered by broadcasting through protocols such as SSDP and the like is avoided, and time is saved. Therefore, the technical effect of improving the acquisition efficiency when the electronic equipment control service is acquired is achieved by improving the success rate of equipment description file access and saving the time for discovering the control service, and the technical problem of low acquisition efficiency when the electronic equipment control service is acquired in the related art is solved.
As an alternative embodiment, fig. 5 is a schematic diagram of a discovery apparatus of an alternative electronic device according to an embodiment of the present application, and as shown in fig. 5, the apparatus further includes:
a fourth obtaining module 52, configured to obtain, before obtaining a target IP address corresponding to a target MAC address from the address resolution protocol table, an IP address carried in an SSDP message from the local area network;
a fifth obtaining module 54, configured to obtain, from the address resolution protocol table, a to-be-processed MAC address corresponding to the IP address carried in the SSDP message;
a searching module 56, configured to search the target MAC address stored in the first electronic device for the MAC address to be processed;
a sixth obtaining module 58, configured to obtain the second device description file address carried in the SSDP message when the to-be-processed MAC address is not found, and correspondingly store the to-be-processed MAC address and the second device description file address in the first electronic device.
As an alternative embodiment, fig. 6 is a third schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application, and as shown in fig. 6, the second obtaining module 44 includes:
a comparing unit 62, configured to compare each candidate MAC address stored in the address resolution protocol table with the target MAC address;
a first obtaining unit 64, configured to obtain, from the address resolution protocol table, an IP address corresponding to the MAC address that matches the MAC address, as the target IP address.
As an alternative embodiment, fig. 7 is a fourth schematic diagram of a discovery apparatus of an alternative electronic device according to an embodiment of the present application, and as shown in fig. 7, the access module 46 includes:
a second obtaining unit 72, configured to obtain a first device description file address corresponding to the target MAC address from the MAC address and the device description file address that are stored in the first electronic device and have a corresponding relationship;
a replacing unit 74, configured to replace the IP address in the first device description file address with the target IP address, so as to obtain a target device description file address;
an accessing unit 76 for accessing the device description file by accessing the target device description file address.
As an alternative embodiment, fig. 8 is a fifth schematic diagram of an alternative electronic device discovery apparatus according to an embodiment of the present application, and as shown in fig. 8, the third obtaining module 48 includes:
a third obtaining unit 82, configured to obtain, from the device description file, a manipulation service provided by the target electronic device when the target device description file address is accessed;
the processing unit 84 is configured to, if the target device description file address is not accessed, initiate access to the target device description file address at a target time interval until the target device description file address is accessed, and obtain, from the device description file, the operation service provided by the target electronic device.
As an alternative embodiment, fig. 9 is a sixth schematic diagram of an alternative discovery apparatus of an electronic device according to an embodiment of the present application, and as shown in fig. 9, the apparatus further includes:
a first sending module 92, configured to send a service request to the target electronic device after obtaining, from the device description file, a manipulation service provided by the target electronic device, where the service request is used to request the target electronic device to provide the manipulation service;
a receiving module 94, configured to receive response information returned by the target electronic device in response to the service request;
the executing module 96 is configured to execute an operation corresponding to the control service when the response information indicates that the control service is allowed to be provided for the first electronic device.
As an alternative embodiment, the manipulation service includes a screen projection service, where fig. 10 is a seventh schematic diagram of an alternative discovery apparatus of an electronic device according to an embodiment of the present application, and as shown in fig. 10, the apparatus further includes:
the connection module 102 is configured to establish a connection with the target electronic device after acquiring the operation service provided by the target electronic device from the device description file;
a second sending module 104, configured to send screen projection data to the target electronic device, where the screen projection data is used to instruct the target electronic device to display the screen projection data.
It should be noted here that the modules described above are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the above embodiments. It should be noted that the modules described above as a part of the apparatus may be operated in a hardware environment as shown in fig. 1, and may be implemented by software, or may be implemented by hardware, where the hardware environment includes a network environment.
According to another aspect of the embodiment of the present application, there is also provided a server or a terminal for implementing the discovery method of the electronic device.
Fig. 11 is a block diagram of a terminal according to an embodiment of the present application, and as shown in fig. 11, the terminal may include: one or more processors 1101 (only one of which is shown), a memory 1103, and a transmission means 1105, as shown in fig. 11, the terminal may further include an input/output device 1107.
The memory 1103 may be configured to store software programs and modules, such as the discovery method and apparatus of the electronic device, the computer-readable storage medium, and program instructions/modules corresponding to the electronic apparatus in the embodiments of the present application, and the processor 1101 executes various functional applications and data processing by running the software programs and modules stored in the memory 1103, so as to implement the discovery method of the electronic device. The memory 1103 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 1103 can further include memory located remotely from the processor 1101, which can be connected to the terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmitting device 1105 is used for receiving or sending data via a network, and can also be used for data transmission between the processor and the memory. Examples of the network may include a wired network and a wireless network. In one example, the transmission device 1105 includes a Network adapter (NIC) that can be connected to a router via a Network cable and other Network devices to communicate with the internet or a local area Network. In one example, the transmitting device 1105 is a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
The memory 1103 is used for storing, among other things, application programs.
The processor 1101 may call an application stored in the memory 1103 through the transmission device 1105 to perform the following steps:
the method comprises the steps of obtaining an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network;
acquiring a target IP address corresponding to a target MAC address from the address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment;
accessing a device description file of the target electronic device through the target IP address;
and acquiring the control service provided by the target electronic equipment from the equipment description file.
By adopting the embodiment of the application, a scheme for discovering the electronic equipment is provided. The target MAC address is the MAC address of the target electronic equipment found by the first electronic equipment in the local area network, the target IP address corresponding to the target MAC address is obtained from the address resolution protocol table by obtaining the address resolution protocol table of the local area network, whether the target electronic equipment is on line in the local area network is determined, the equipment description file of the target electronic equipment is accessed through the target IP address recorded in the address resolution protocol table so as to obtain the control service provided by the target electronic equipment, because the target IP address is the IP address recorded in the address resolution protocol table, namely, the target electronic equipment is using the target IP address to connect the local area network, the equipment description file of the target electronic equipment can be accessed by using the target IP address, the aim of improving the success rate of the access of the equipment description file is achieved, and meanwhile, the control service of the electronic equipment is obtained by directly using the target IP address to access the equipment description file, the process that the electronic equipment is discovered by broadcasting through protocols such as SSDP and the like is avoided, and time is saved. Therefore, the technical effect of improving the acquisition efficiency when the electronic equipment control service is acquired is achieved by improving the success rate of equipment description file access and saving the time for discovering the control service, and the technical problem of low acquisition efficiency when the electronic equipment control service is acquired in the related art is solved.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.
It can be understood by those skilled in the art that the structure shown in fig. 11 is only an illustration, and the terminal may be a terminal device such as a smart phone (e.g., an Android phone, an iOS phone, etc.), a tablet computer, a palm computer, and a Mobile Internet Device (MID), a PAD, etc. Fig. 11 is a diagram illustrating a structure of the electronic device. For example, the terminal may also include more or fewer components (e.g., network interfaces, display devices, etc.) than shown in FIG. 11, or have a different configuration than shown in FIG. 11.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program instructing hardware associated with the terminal device, where the program may be stored in a computer-readable storage medium, and the storage medium may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
Embodiments of the present application also provide a computer-readable storage medium. Alternatively, in the present embodiment, the computer-readable storage medium described above may be used for program codes for executing a discovery method of an electronic device.
Alternatively, in this embodiment, the computer-readable storage medium may be located on at least one of a plurality of network devices in the network shown in the above embodiment.
Optionally, in this embodiment, the storage medium is configured to store program code for performing the following steps:
the method comprises the steps of obtaining an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network;
acquiring a target IP address corresponding to a target MAC address from the address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment;
accessing a device description file of the target electronic device through the target IP address;
and acquiring the control service provided by the target electronic equipment from the equipment description file.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment is not described herein again.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
The integrated unit in the above embodiments, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in the above computer-readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including instructions for causing one or more computer devices (which may be personal computers, servers, network devices, or the like) to execute all or part of the steps of the method described in the embodiments of the present application.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A method for discovering an electronic device, comprising:
the method comprises the steps of obtaining an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network;
acquiring a target IP address corresponding to a target MAC address from the address resolution protocol table, wherein the target MAC address is used for identifying target electronic equipment found by the first electronic equipment in the local area network, and the second electronic equipment comprises the target electronic equipment;
accessing a device description file of the target electronic device through the target IP address;
and acquiring the control service provided by the target electronic equipment from the equipment description file.
2. The method of claim 1, wherein before obtaining the destination IP address corresponding to the destination MAC address from the arp table, the method further comprises:
acquiring an IP address carried in a Simple Service Discovery Protocol (SSDP) message from the local area network;
acquiring a to-be-processed MAC address corresponding to the IP address carried by the SSDP message from the address resolution protocol table;
searching the MAC address to be processed from the target MAC address stored in the first electronic equipment;
and under the condition that the MAC address to be processed is not found, acquiring a second device description file address carried by the SSDP message, and correspondingly storing the MAC address to be processed and the second device description file address in the first electronic device.
3. The method of claim 1, wherein obtaining the destination IP address corresponding to the destination MAC address from the arp table comprises:
comparing each candidate MAC address stored in the address resolution protocol table with the target MAC address;
and acquiring the IP address corresponding to the MAC address which is compared and consistent from the address resolution protocol table to be used as the target IP address.
4. The method of claim 1, wherein accessing the device description file of the target electronic device via the target IP address comprises:
acquiring a first device description file address corresponding to the target MAC address from the MAC address and the device description file address which are stored in the first electronic device and have the corresponding relation;
replacing the IP address in the first equipment description file address with the target IP address to obtain a target equipment description file address;
and accessing the device description file by accessing the target device description file address.
5. The method of claim 4, wherein obtaining the manipulation service provided by the target electronic device from the device description file comprises:
under the condition that the address of the target device description file is accessed, acquiring the control service provided by the target electronic device from the device description file;
and under the condition that the target device description file address is not accessed, accessing the target device description file address at a target time interval until the target device description file address is accessed, and acquiring the control service provided by the target electronic device from the device description file.
6. The method according to any one of claims 1 to 5, wherein after obtaining the manipulation service provided by the target electronic device from the device description file, the method further comprises:
sending a service request to the target electronic device, wherein the service request is used for requesting the target electronic device to provide the control service;
receiving response information returned by the target electronic equipment in response to the service request;
and executing the operation corresponding to the control service under the condition that the response information is used for indicating that the control service is allowed to be provided for the first electronic equipment.
7. The method of any one of claims 1-5, wherein the manipulation service comprises a screen-casting service, wherein after retrieving the manipulation service provided by the target electronic device from the device description file, the method further comprises:
establishing a connection with the target electronic device;
and sending screen projection data to the target electronic equipment, wherein the screen projection data are used for indicating the target electronic equipment to display the screen projection data.
8. An apparatus for discovering an electronic device, comprising:
the first acquisition module is used for acquiring an address resolution protocol table of a local area network connected with first electronic equipment, wherein the address resolution protocol table is used for recording a Media Access Control (MAC) address and an Internet Protocol (IP) address of second electronic equipment, and the second electronic equipment is other electronic equipment connected with the local area network;
a second obtaining module, configured to obtain a target IP address corresponding to a target MAC address from the address resolution protocol table, where the target MAC address is used to identify a target electronic device discovered by the first electronic device in the local area network, and the second electronic device includes the target electronic device;
the access module is used for accessing the device description file of the target electronic device through the target IP address;
and the third acquisition module is used for acquiring the control service provided by the target electronic equipment from the equipment description file.
9. A computer-readable storage medium, comprising a stored program, wherein the program is operable to perform the method of any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the method of any of the preceding claims 1 to 7 by means of the computer program.
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