Communication systems and methods

Abstract

Systems and methods for establishing communication between a terminal and a device are disclosed. According to certain embodiments, a method used in the device includes receiving a plurality of multicast packets from the terminal. The method also includes determining, according to the multicast packets, wireless connection information of a wireless network. The method further includes connecting to the wireless network according to the wireless connection information. The method further includes generating a notification indicating a password associated with the device.

1 . A method for establishing communication between a device and a terminal, comprising:
 receiving a plurality of multicast packets from the terminal;   determining, according to the multicast packets, wireless connection information of a wireless network;   connecting to the wireless network according to the wireless connection information; and   generating a notification indicating a password associated with the device.   
     
     
         2 . The method according to  claim 1 , wherein receiving the multicast packets from the terminal comprises:
 scanning a plurality of multicast channels;   receiving, on one or more of the multicast channels, one or more first multicast packets from the terminal;   determining, according to the one or more first multicast packets, an identification of the terminal; and   if the identification of the terminal matches a predetermined identification, locking the one or more multicast channels.   
     
     
         3 . The method according to  claim 2 , further comprising:
 determining, according to the one or more first multicast packets, a length of a wireless password associated with the wireless network.   
     
     
         4 . The method according to  claim 3 , further comprising:
 receiving, on the one or more locked multicast channels, one or more second multicast packets from the terminal, each second multicast packet, comprising a serial number and at least a part of the wireless password corresponding to the serial number;   determining, according to the length of the wireless password and the serial numbers in the received second multicast packets, whether to receive additional second multicast packets; and   if no additional second multicast packets need to be received, determining the wireless password according to the received second multicast packets.   
     
     
         5 . The method according to  claim 2 , wherein scanning the multicast channels further comprises:
 if the multicast channels have different usage frequencies, first scanning multicast channels with usage frequencies that are above a predetermined frequency.   
     
     
         6 . A device for communication with a terminal, comprising:
 a memory storing instructions; and   a processor configured to execute the instructions to:
 receive a plurality of multicast packets from the terminal; 
 determine, according to the multicast packets, wireless connection information of a wireless network; 
   connect to the wireless network according to the wireless connection information; and   generate a notification indicating a password associated with the device.   
     
     
         7 . The device according to  claim 6 , wherein the processor is further configured to execute the instructions to:
 scan a plurality of multicast channels;   receive, on one or more of the multicast channels, one or more first multicast packets from the terminal;   determine, according to the received first multicast packets, an identification of the terminal; and   if the identification of the terminal matches a predetermined identification, lock the one or more multicast channels.   
     
     
         8 . The device according to  claim 7 , wherein the processor is further configured to execute the instructions to:
 determine, according to the received first multicast packets, a length of a wireless password associated with the wireless network.   
     
     
         9 . The device according to  claim 8 , wherein the processor is further configured to execute the instructions to:
 receive, on the one or more locked multicast channels, one or more second multicast packets from the terminal, each second multicast packet comprising a serial number and at least a part of the wireless password corresponding to the serial number;   determine, according to the length of the wireless password and the serial numbers in the received second multicast packets, whether to receive additional second multicast packets; and   if no additional second multicast packets need to be received, determine the wireless password according to the second multicast packets.   
     
     
         10 . The device according to  claim 7 , wherein the processor is further configured to execute the instructions to:
 if the multicast channels have different usage frequencies, first scan multicast channels with usage frequencies that are above a predetermined frequency.   
     
     
         11 . A non-transitory computer-readable storage medium storing instructions for establishing communication between a device and a terminal, the instructions causing a processor to perform operations comprising:
 receiving a plurality of multicast packets from the terminal;   determining, according to the multicast packets, wireless connection information of a wireless network;   connecting to the wireless network according to the wireless connection information; and   generating a notification indicating a password associated with the device.   
     
     
         12 . The non-transitory computer-readable storage medium of  claim 11 , wherein receiving the multicast packets from the terminal comprises:
 scanning a plurality of multicast channels;   receiving, on one or more of the multicast channels, one or more first multicast packets from the terminal;   determining, according to the one or more first multicast packets, an identification of the terminal; and   if the identification of the terminal matches a predetermined identification, locking the one or more multicast channels.   
     
     
         13 . The non-transitory computer-readable storage medium of  claim 12 , wherein the operations further comprise:
 determining, according to the received first multicast packets, a length of a wireless password associated with the wireless network.   
     
     
         14 . The non-transitory computer-readable storage medium of  claim 13 , wherein the operations further comprise:
 receiving, on the one or more locked multicast channels, one or more second multicast packets from the terminal, each second multicast packet comprising a serial number and at least a part of the wireless password corresponding to the serial number;   determining, according to the length of the wireless password and the serial numbers in the received second multicast packets, whether to receive additional second multicast packets; and   if no additional second multicast packets need to be received, determining the wireless password according to the received second multicast packets.   
     
     
         15 . The non-transitory computer-readable storage medium of  claim 12 , wherein scanning the multicast channels further comprises:
 if the multicast channels have different usage frequencies, first scanning multicast channels with usage frequencies that are above a predetermined frequency.   
     
     
         16 . A method for establishing communication between a device and a terminal, comprising:
 obtaining wireless connection information of a wireless network;   generating a plurality of multicast packets including wireless connection information of the wireless network;   sending the multicast packets to the device; and   after the device is connected to the wireless network, trigger the device to generate a notification indicating a password associated with the device.   
     
     
         17 . The method according to  claim 16 , wherein
 the plurality of multicast packets comprise one or more first multicast packets and one or more second multicast packets; and   generating the plurality of multicast packets further comprises:
 writing into the one or more first multicast packets an identification of the terminal and a length of a wireless password associated with the wireless network; and 
 writing into each second multicast packet a serial number and at least a part of the wireless password corresponding to the serial number. 
   
     
     
         18 . The method according to  claim 16 , wherein generating the plurality of multicast packets further comprises:
 encrypting the information included in the plurality of multicast packets.   
     
     
         19 . A terminal, comprising:
 a memory storing instructions; and   a processor configured to execute the instructions to:
 obtain wireless connection information of a wireless network; 
 generate a plurality of multicast packets including wireless connection information of the wireless network; 
 send the multicast packets to a device; and 
 after the device is connected to the wireless network, trigger the device to generate a notification indicating a password associated with the device. 
   
     
     
         20 . The terminal according to  claim 19 , wherein
 the plurality of multicast packets comprise one or more first multicast packets and one or more second multicast packets; and   the processor is further configured to execute the instructions to:
 write into the one or more first multicast packets an identification of the terminal and a length of a wireless password associated with the wireless network; and 
 write into each second multicast packet a serial number and at least a part of the wireless password corresponding to the serial number. 
   
     
     
         21 . The terminal according to  claim 19 , wherein the processor is further configured to:
 encrypting the information included in the multicast packets.   
     
     
         22 . A non-transitory computer-readable storage medium storing instructions for establishing communication between a device and a terminal, the instructions causing a processor to perform operations comprising:
 obtaining wireless connection information of a wireless network;   generating a plurality of multicast packets including wireless connection information of the wireless network;   sending the multicast packets to the device; and   after the device is connected to the wireless network, trigger the device to generate a notification indicating a password associated with the device.   
     
     
         23 . The non-transitory computer-readable storage medium of  claim 22 , wherein
 the plurality of multicast packets comprise one or more first multicast packets and one or more second multicast packets; and   the operations further comprise:
 writing into the one or more first multicast packets an identification of the terminal and a length of a wireless password associated with the wireless network; and 
 writing into each second multicast packet a serial number and at least a part of the wireless password corresponding to the serial number. 
   
     
     
         24 . The non-transitory computer-readable storage medium of  claim 22 , wherein the operations further comprise:
 encrypting the information included in the multicast packets.   
     
     
         25 . A method for establishing communication between a device and a terminal, comprising:
 receiving, by the terminal, wireless connection information of a wireless network and a UID, the wireless connection information being associated with a format set;   determining, by the terminal, whether the format set introduces special characters into a graphic code;   converting the wireless connection information into a uniform format when the format set introduces special characters;   generating, by the terminal, the graphic code according to the wireless connection information and the UID;   displaying the code by the terminal;   scanning the code by the device;   decoding, by the device, the code to extract the wireless connection information and the UID; and   connecting, by the device, to the wireless network according to the wireless connection information.   
     
     
         26 . The method according to  claim 25 , wherein the code comprises a QR code. 
     
     
         27 . The method according to  claim 25 , wherein generating the code further comprises:
 encrypting the wireless connection information and UID; and   generating the code, according to the encrypted wireless connection information and UID.   
     
     
         28 . The method according to  claim 25 , wherein the UID is a server-generated UID, the method further comprising:
 sending, by the device, the UID to the server;   determining, by the server, whether the UID has expired; and   if the UID has not expired, establishing, by the server, a binding relationship between the device and the terminal.   
     
     
         29 . The method according to  claim 28 , further comprising:
 if the UID has expired, generating, by the device, an error message indicating that the binding between the device and the terminal has failed.   
     
     
         30 . The method according to  claim 25 , wherein the device comprises a camera. 
     
     
         31 . The method according to  claim 25 , wherein the terminal comprises a display 
     
     
         32 . A device for communication with a terminal, comprising:
 a camera configured to scan a QR code displayed by the terminal;   a memory storing instructions; and   a processor configured to execute the instructions to:
 decode the QR code to extract the wireless connection information; and 
 connect to the wireless network according to the wireless connection information, 
   wherein,   the terminal generates the QR code according to converted wireless connection information of a wireless network,   the converted wireless connection information being wireless connection information converted into a uniform format when the terminal determines a format associated with the wireless connection information introduces special characters into the QR code.   
     
     
         33 . The device according to  claim 32 , wherein:
 the QR code is further coded according to a UID; and   the processor is further configured to execute the instructions to decode the QR code to extract the UID.   
     
     
         34 . The device according to  claim 33 , wherein the processor is further configured to execute the instructions to:
 receive, from a server, a notification that the UID has expired; and   if the UID has expired, generate an error message indicating that the binding between the device and the terminal has failed.   
     
     
         35 . A non-transitory computer-readable storage medium storing instructions for establishing communication between a device and a terminal, the instructions causing a processor to perform operations comprising:
 receiving a QR code displayed by the terminal, the QR code being coded by the terminal according to converted wireless connection information of a wireless network, the converted wireless connection information being wireless connection information converted into a uniform format when the terminal determines a format associated with the wireless connection information introduces special characters into the QR code;   decode the QR code to extract the wireless connection information; and   connect to the wireless network according to the wireless connection information.   
     
     
         36 . The non-transitory computer-readable storage medium of  claim 35 , wherein:
 the QR code is further coded according to a UID; and   the operations further comprises decoding the QR code to extract the UID.   
     
     
         37 . The non-transitory computer-readable storage medium of  claim 36 , wherein the operations further comprise:
 receiving, from a server, a notification that the UID has expired; and   if the UID has expired, generating an error message indicating that the binding between the device and the terminal has failed.   
     
     
         38 . A method for establishing communication between a terminal and a device, comprising:
 determining that a condition has occurred;   retrieving, from a memory of the terminal, a user name, and a password of the device;   forming a P2P connection between the terminal and the device;   sending the user name and password to the device for verification; and   if the verification fails, obtaining from a server an updated password of the device.   
     
     
         39 . The method according to  claim 38 , further comprising:
 saving the updated password in the memory.   
     
     
         40 . The method according to  claim 38 , wherein the condition comprises at least one of:
 the terminal is turned on;   the terminal is connected to a network; or   the terminal has started an application for managing a device bound to the terminal.   
     
     
         41 . The method according to  claim 38 , further comprising:
 retrieving, from the memory, a UID of the device;   querying, based on the UID, the server regarding availability status of the device; and   if the device is available for connection, forming the P2P connection.   
     
     
         42 . A terminal, comprising:
 a memory storing:
 instructions, and 
 a UID, a user name, and a password for a device; and 
   a processor configured to execute the instructions to:
 determine that a condition has occurred; 
 retrieve the user name, and the password of the device; 
 form a P2P connection to the device; 
 send the user name and password to the device for verification; and 
 if the verification fails, obtain from a server an updated password of the device. 
   
     
     
         43 . The terminal according to  claim 42 , wherein the processor is further configured to execute the instructions to:
 save the updated password in the memory.   
     
     
         44 . The terminal according to  claim 42 , wherein the condition comprises at least one of:
 the terminal is turned on;   the terminal is connected to a network; or   the terminal has started an application for managing a device bound to the terminal.   
     
     
         45 . The terminal according to  claim 42 , wherein the processor is further configured to execute the instructions to:
 retrieve the UID of the device;   query, based on the UID, the server regarding availability status of the device; and   if the device is available for connection, form the P2P connection.   
     
     
         46 . A non-transitory computer-readable storage medium storing instructions for establishing communication between a device and a terminal, the instructions causing a processor to perform operations comprising:
 determining that a condition has occurred;   retrieving, from a memory of the terminal, a user name and a password of the device;   forming a P2P connection between the terminal and the device;   sending the user name and password to the device for verification; and   if the verification fails, obtaining from a server an updated password of the device.   
     
     
         47 . The non-transitory computer-readable storage medium of  claim 46 , wherein the operations further comprise:
 saving the updated password in the memory.   
     
     
         48 . The non-transitory computer-readable storage medium of  claim 46 , wherein the condition comprises at least one of:
 the terminal is turned on;   the terminal is connected to a network; or   the terminal has started an application for managing one or more devices bound to the terminal.   
     
     
         49 . The non-transitory computer-readable storage medium of  claim 46 , wherein the operations further comprise:
 retrieving, from the memory, a UID of the device;   querying, based on the UID, the server regarding availability status of the device; and   if the device is available for connection, forming the P2P connection.