A video conference system and a device automatic recovery linkage method and apparatus thereof

Abstract

The application relates to the technical field of video conferencing, and discloses a video conference system, and an automatic recovery linkage method and device of equipment thereof. After a video conference accessory and a host are disconnected, the method can search and broadcast information through Bluetooth BLE of the video conference accessory, relevant network information of the video conference host can be analyzed when the network information of the video conference host is identified, the analyzed mac address is compared with the mac address of the original video conference host saved in the video conference accessory, if the mac addresses are the same, the network topology of the video conference accessory at the moment is judged, if the network topology is wired direct connection or local area network connection, a TCP connection between the two can be directly established, if the network topology is ap connection, a hot spot of the video conference host needs to be connected according to the ap configuration of the host, and then a TCP connection between the two is established to recover the linkage between the video conference accessory and the host. The application can automatically and quickly recover the pairing connection without manual intervention when the video conference host and the video conference accessory are disconnected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of video conference, in particular to a video conference system and a device automatic recovery linkage method and device thereof. BACKGROUND

[0002] The video conference system comprises a video conference host and a video conference accessory. Common video conference accessories include a conference control panel and a network camera. The video conference accessory and the video conference host need to establish a pairing connection relationship to be normally used in linkage. The video conference accessory and the video conference host communicate with each other through wired or wireless networks. When the network topology between the host device and the accessory that have established the pairing connection changes, the network communication between them is often disconnected. At this time, the pairing connection needs to be re-established to continue normal linkage use.

[0003] At present, when the video conference host and the accessory lose connection after successful pairing, the re-pairing connection is generally realized through manual intervention. Due to the change of the IP address of the device, the new IP needs to be re-input through the interface operation to re-pair. This method needs user manual operation intervention, and the user experience is poor. SUMMARY

[0004] The present application provides a video conference system and a device automatic recovery linkage method and device thereof. The pairing connection can be automatically and quickly recovered without manual intervention when the video conference host and the video conference accessory lose connection, and the user experience is improved.

[0005] In order to solve the above technical problems, the first aspect of the present application provides a video conference system device automatic recovery linkage method, comprising:

[0006] After losing connection with the original video conference host, start searching for broadcast messages through Bluetooth BLE;

[0007] When it is identified that the broadcast message contains the network information of the video conference host, the IP address, the MAC address and the AP configuration of the video conference host are parsed;

[0008] When the parsed MAC address is the same as the saved MAC address of the original video conference host, the video conference host is determined as the original video conference host;

[0009] According to the parsed IP address of the video conference host, a TCP network connection application is sent to the video conference host;

[0010] When the video conference host agrees to the TCP network connection application of the video conference accessory, the linkage with the original video conference host is restored.

[0011] The video conference accessory of the application can start searching broadcast information through Bluetooth BLE after losing connection with a video conference host, and when identifying that the broadcast information contains network information of the video conference host, the relevant network information of the video conference host is parsed, and the parsed mac address is compared with the mac address of the original video conference host saved in the video conference accessory. If they are the same, it is determined that the video conference host is the original video conference host, and a tcp connection is established with the video conference host according to the parsed ip address of the video conference host, so as to restore the linkage between them, so as to achieve the purpose of automatically restoring pairing between devices without manual intervention.

[0012] Further, the tcp network connection application is sent to the video conference host according to the parsed ip address of the video conference host, specifically:

[0013] judging the network topology at this time;

[0014] if the network topology at this time is wired direct connection or local area network connection, the tcp network connection application is sent to the video conference host according to the parsed ip address of the video conference host;

[0015] if the network topology at this time is ap connection, the hot spot of the video conference host is automatically connected through the parsed ap configuration of the video conference host, the network of the video conference host is received, and the tcp network connection application is sent to the video conference host according to the parsed ip address of the video conference host.

[0016] When the network information of the original video conference host is searched, the network topology of the video conference accessory at this time needs to be judged. If it is wired direct connection or local area network connection, the tcp connection between the two can be established directly according to the parsed ip address of the video conference host. If it is ap connection, since the video conference accessory has no network at this time, the hot spot of the video conference host needs to be connected according to the parsed ap configuration, and then the tcp connection between the two can be established according to the ip address of the video conference host, so as to automatically restore the pairing linkage with the original video conference host. The application can flexibly select the appropriate connection mode to connect with the video conference host according to the different network topology of the video conference accessory, thereby increasing the success rate of restoring the linkage.

[0017] Further, when the network information of the video conference host is identified in the broadcast message, the ip address, mac address and ap configuration of the video conference host are parsed, which further includes:

[0018] when the network information of the non-video conference host device is identified in the broadcast message, the non-video conference host device is not paired.

[0019] The application does not analyze the searched network information and does not pair with the non-video conference host device when searching other non-video conference host devices through Bluetooth broadcast information, thereby ensuring the safety of device connection.

[0020] Further, when the parsed mac address is the same as the saved mac address of the original video conference host, the application further comprises:

[0021] When the parsed mac address is different from the saved mac address of the original video conference host, the application continues to search through Bluetooth BLE until the network information of the original video conference host is searched.

[0022] The application compares the searched mac address with the saved mac address of the original video conference host of the video conference accessory, and if they are the same, the Bluetooth BLE broadcast search is stopped, and if they are different, the search needs to be continued until the network information of the original video conference host is searched, so as to ensure that the connected video conference host is the video conference host before the loss of connection, and improve the correctness of the connection.

[0023] Further, the saved mac address of the original video conference host is specifically:

[0024] The original video conference host broadcasts its current network information through Bluetooth BLE;

[0025] According to the searched network information of the original video conference host, the network topology between the video conference accessory and the original video conference host is established, and the original video conference host is paired;

[0026] After the first pairing with the original video conference host, the mac address of the original video conference host is saved.

[0027] The video conference accessory and the video conference host of the application need to turn on Bluetooth BLE when pairing for the first time, the host broadcasts its network information through Bluetooth, the accessory receives the network information of the host through Bluetooth, when the network information of the host to be connected is identified, the network topology between the host and the accessory is established, the host and the accessory are successfully paired, and the mac address of the host is stored in the accessory, so that the host and the accessory can be found when they are lost and the paired device cannot be found, the information of the host stored in the accessory can quickly find the original paired host.

[0028] Further, the original video conference host broadcasts its current network information, specifically:

[0029] The original video conference host broadcasts its current network information through Bluetooth BLE, until the preset stop broadcast condition is reached or the preset maximum number of connected accessories is reached.

[0030] The video conference system of the application can have multiple video conference accessories, so the video conference host will not stop broadcasting its network information immediately when pairing with an accessory, but will stop broadcasting until the stop condition set by the user is reached or the number of connected accessories reaches the maximum supported connection limit, ensuring that a video conference host can connect to multiple video conference accessories and ensuring that the video conference can proceed normally.

[0031] Further, the network topology between the original video conference host and the video conference accessory includes wired direct connection, LAN connection and ap connection.

[0032] The video conference host and accessory of the application support multiple network topologies, including wired direct connection, LAN connection and ap connection, and can change the network topology when any network topology is unavailable to maintain the linkage between the video conference host and the accessory, ensuring the normal progress of the video conference.

[0033] The application provides a video conference system device automatic recovery linkage method, which can search and broadcast information through the Bluetooth BLE of the video conference accessory after the video conference accessory and the host are disconnected, identify the relevant network information of the video conference host when the network information of the video conference host is identified, parse the mac address of the video conference host, compare the parsed mac address with the mac address of the original video conference host saved in the video conference accessory, and if they are the same, determine the network topology of the video conference accessory, and if it is wired direct connection or LAN connection, a TCP connection between the two can be established directly, and if it is ap connection, the hot spot of the video conference host needs to be connected according to the ap configuration of the host, and then a TCP connection between the two is established to recover the linkage between the video conference accessory and the host.

[0034] The second aspect of the application provides a video conference system device automatic recovery linkage device, comprising: a search module, an analysis module, a determination module, an application module and a linkage module.

[0035] The search module is used to search and broadcast messages through Bluetooth BLE after the original video conference host is disconnected.

[0036] The analysis module is used to parse the IP address, mac address and ap configuration of the video conference host when the broadcast message contains the network information of the video conference host.

[0037] The determination module is used to determine that the video conference host is the original video conference host when the parsed mac address is the same as the saved mac address of the original video conference host.

[0038] The application module is configured to send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host.

[0039] The linkage module is configured to resume linkage with the original video conference host when the video conference host agrees to the TCP network connection application of the video conference accessory.

[0040] Further, the application module comprises a judgment unit, a first application unit and a second application unit.

[0041] The judgment unit is configured to judge the network topology at the moment.

[0042] The first application unit is configured to send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host if the network topology at the moment is wired direct connection or LAN connection.

[0043] The second application unit is configured to automatically connect to the hotspot of the video conference host through the parsed AP configuration of the video conference host, receive the network of the video conference host, and send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host if the network topology at the moment is AP connection.

[0044] The application provides a video conference system device automatic linkage recovery device, which is based on the organic combination of modules, and can automatically and quickly recover the pairing connection without manual intervention when the video conference host and the video conference accessory are out of linkage.

[0045] The third aspect of the application provides a video conference system, comprising a video conference accessory and a video conference host.

[0046] The video conference accessory performs the video conference system device automatic linkage recovery method as described above.

[0047] The application provides a video conference system, which comprises one or more video conference accessories and a video conference host. The video conference accessory performs the video conference system device automatic linkage recovery method as described above, so that the out-of-linkage video conference accessory can be paired back to the original video conference host. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 A flowchart of an embodiment of the video conference system device automatic linkage recovery method provided by the application;

[0049] Figure 2 A schematic diagram of an embodiment of the network topology provided by the application;

[0050] Figure 3 A schematic diagram of another embodiment of the network topology provided by the present application;

[0051] Figure 4 A schematic diagram of another embodiment of the network topology provided by the present application;

[0052] Figure 5 A schematic diagram of another embodiment of the video conference system device automatic recovery linkage method provided by the present application;

[0053] Figure 6 A schematic diagram of another embodiment of the video conference system device automatic recovery linkage method provided by the present application; DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] In the description of the present application, it should be understood that the terms used in the present application are as follows:

[0056] 1. Network topology: refers to the physical layout of interconnecting various devices with transmission media, especially the location of computer distribution and how the cable passes through the computer.

[0057] As shown in Figure 1 , it is a schematic diagram of an embodiment of the video conference system device automatic recovery linkage method provided by the present application, which comprises steps 101 to 105, and each step is as follows:

[0058] Step 101: After losing connection with the original video conference host, start searching for broadcast messages through Bluetooth BLE.

[0059] In the embodiments of the present application, there are many reasons for the disconnection between the video conference accessory and the video conference host, such as network topology mode switching between the two, power failure of the accessory or communication interruption caused by the accessory leaving the hotspot range during hotspot connection. The video conference host and the video conference accessory are both built-in Bluetooth modules, which can support Bluetooth communication. The video conference host can broadcast its current network information, including ip address, mac address and ap configuration (including information required for connecting hotspots), through Bluetooth BLE every 3 seconds.

[0060] Step 102: When it is identified that the broadcast message contains the network information of the video conference host, the ip address, mac address and ap configuration of the video conference host are parsed.

[0061] In the embodiment of the present application, when it is identified that the network information of the video conference host is contained in the broadcast message, the IP address, the MAC address and the AP configuration of the video conference host are parsed, and the embodiment further comprises:

[0062] When it is identified that the network information of the non-video conference host device is contained in the broadcast message, the non-video conference host device is not paired.

[0063] In the embodiment of the present application, when the video conference accessory searches for the broadcast information through Bluetooth, not only the information of the video conference host device can be searched, but also the information of other devices with Bluetooth function can be searched. Since the video conference accessory is automatically reconnected with the video conference host at this time, when other devices are identified, the video conference accessory does not parse the information of the device, and continues to search for the information of the video conference host, so as to ensure the correctness and safety of the device connection.

[0064] In step 103, when the parsed MAC address is the same as the saved MAC address of the original video conference host, it is determined that the video conference host is the original video conference host.

[0065] In the embodiment of the present application, the saved MAC address of the original video conference host is specifically:

[0066] The current network information of the original video conference host broadcasted through Bluetooth BLE is searched;

[0067] According to the searched network information of the original video conference host, a network topology between the video conference accessory and the original video conference host is established, and the original video conference host is paired;

[0068] After the first pairing with the original video conference host, the MAC address of the original video conference host is saved.

[0069] In the embodiment of the present application, when the video conference accessory and the video conference host are paired for the first time, Bluetooth BLE of both needs to be turned on. The host broadcasts its network information through Bluetooth every 3 seconds. The accessory receives the network information of the host through Bluetooth. When the network information of the host to be connected is identified, a network topology between the accessory and the host is established, the host is successfully paired, and the MAC address of the host is stored in the accessory, so as to prevent the host and the accessory from losing connection and failing to find the paired device. When the information of the host is stored in the accessory, the original paired host can be quickly found.

[0070] In the embodiment of the present application, the current network information of the original video conference host broadcasted through Bluetooth BLE is specifically:

[0071] The original video conference host continuously broadcasts its current network information through Bluetooth BLE until a preset stop broadcasting condition is reached or a preset maximum number of connected accessories is reached.

[0072] In the embodiment of the application, since there are multiple video conference accessories in the video conference system, the video conference host will not stop broadcasting its network information immediately after pairing with an accessory. The user can set a stop condition for Bluetooth broadcasting on the video conference host or set a maximum connection limit, so that the video conference host will stop broadcasting when the user-set stop condition is reached or the number of connected accessories reaches the maximum supported connection limit, ensuring that a video conference host can connect multiple video conference accessories and ensuring that the video conference can proceed normally.

[0073] In the embodiment of the application, the network topology between the original video conference host and the accessories includes wired direct connection, local area network connection, and ap connection.

[0074] In the embodiment of the application, the video conference host and the accessories support multiple network topologies, including wired direct connection, local area network connection, and ap connection. When any of the network topologies is unavailable, the network topology can be changed to maintain the linkage between the video conference host and the accessories, ensuring the normal progress of the video conference.

[0075] As an example of the application, as shown in Figure 2 , is a schematic diagram of an embodiment of the network topology provided by the application. The network topology between the video conference host and the accessories can be wired direct connection. The video conference accessory is directly connected to the network interface of the video conference host through a network cable. The video conference system host constructs a local private network and allocates IP addresses to each accessory connected directly. For example, the host uses the address: 192.168.100.1 and the accessory uses the address 192.168.100.2.

[0076] As an example of the application, as shown in Figure 3 , is a schematic diagram of another embodiment of the network topology provided by the application. The network topology between the video conference host and the accessories can be local area network connection. The video conference host and the video conference accessory are connected under the same local area network, which can be a wired local area network or a wireless local area network. The local area network router allocates IP addresses to the devices. For example, the host uses the address: 192.168.0.10 and the accessory uses the address 192.168.0.11.

[0077] As an example of the application, as shown in Figure 4As shown, it is a schematic diagram of another embodiment of the network topology provided by the application. The network topology between the video conference host and the accessory can be ap connection, the video conference host opens a wireless hotspot, and the video conference accessory connects to the video conference host through wifi. For example, the host uses the address: 192.168.105.1, and the accessory address is 192.168.150.2.

[0078] In the embodiment of the application, when the parsed mac address is the same as the saved mac address of the original video conference host, the method further comprises:

[0079] When the parsed mac address is different from the saved mac address of the original video conference host, the searching through Bluetooth BLE is continued until the network information of the original video conference host is searched.

[0080] In the embodiment of the application, when the video conference accessory searches the network information of the video conference host, the network information is parsed, and when it is identified that the parsed mac address is the same as the saved mac address of the original video conference host in the video conference accessory, the Bluetooth BLE broadcast search is stopped, and if they are different, the searching needs to be continued until the network information of the original video conference host is searched, so as to ensure that the connected video conference host is the video conference host before the loss of connection, and improve the correctness of the connection.

[0081] Step 104: According to the parsed ip address of the video conference host, a tcp network connection application is sent to the video conference host.

[0082] In the embodiment of the application, according to the parsed ip address of the video conference host, a tcp network connection application is sent to the video conference host, and the specific process is as follows:

[0083] determine the network topology at this time;

[0084] If the network topology at this time is wired direct connection or local area network connection, a tcp network connection application is sent to the video conference host according to the parsed ip address of the video conference host;

[0085] If the network topology at this time is ap connection, the ap configuration of the parsed video conference host is parsed, the hotspot of the video conference host is automatically connected, the network of the video conference host is received, and a tcp network connection application is sent to the video conference host according to the parsed ip address of the video conference host.

[0086] In the embodiment of the present application, when the video conference accessory searches the network information of the original video conference host, the network topology of the video conference accessory needs to be determined. If it is wired direct connection or LAN connection, the TCP connection between the two can be established according to the parsed IP address of the video conference host. If it is AP connection, since the video conference accessory has no network at this time, the hot spot of the video conference host needs to be connected according to the parsed AP configuration, and then the TCP connection between the two is established according to the IP address of the video conference host, thereby automatically recovering the pairing linkage with the original video conference host. Since the IP address will change after the video conference host and the video conference accessory are disconnected, the connection is established according to the searched IP address of the video conference host when reconnection. The present application can flexibly select the appropriate connection mode to connect with the video conference host according to the different network topologies of the video conference accessory, thereby increasing the success rate of recovering the linkage.

[0087] Step 105: When the video conference host agrees to the TCP network connection application of the video conference accessory, the linkage with the original video conference host is recovered.

[0088] As an example of the embodiment of the present application, as shown in Figure 5 The video conference accessory and the video conference host can normally link after pairing for the first time, and the MAC address of the video conference host is saved in the video conference accessory. When the video conference host and the accessory are disconnected due to network topology change or other reasons, the video conference host broadcasts network information through Bluetooth, and the video conference accessory searches the broadcast information through Bluetooth. When the network information of the video conference host is searched, the searched MAC address is compared with the MAC address saved in the video conference accessory. If they are the same, the video conference accessory will stop searching the Bluetooth broadcast, and determine the network topology at this time. If it is wired direct connection or LAN connection, it indicates that the accessory is using wired network at this time, and the TCP network connection can be directly established with the host. If it is AP connection, it indicates that the accessory has no network at this time, and the hot spot of the host needs to be connected, and then the TCP network connection is established with the host, thereby recovering the linkage.

[0089] The application provides a video conference system device automatic recovery linkage method, after a video conference accessory and a host are disconnected, the video conference accessory can search broadcast information through Bluetooth BLE, when network information of the video conference host is identified, relevant network information of the video conference host is analyzed, and the analyzed mac address is compared with the mac address of the original video conference host saved in the video conference accessory, if the same, the network topology of the video conference accessory at this time is judged, if it is wired direct connection or local area network connection, a tcp connection between the two can be directly established, if it is ap connection, the hotspot of the video conference host needs to be connected according to the ap configuration of the host, and then the tcp connection between the two is established, the linkage between the video conference accessory and the host is recovered, and the pairing connection is automatically and quickly recovered without manual intervention when the video conference host and the video conference accessory are disconnected.

[0090] The second aspect of the application provides a video conference system device automatic recovery linkage device, the device comprises a search module 201, an analysis module 202, a determination module 203, an application module 204 and a linkage module 205.

[0091] The search module 201 is used for starting to search broadcast messages through Bluetooth BLE after being disconnected with the original video conference host.

[0092] The analysis module 202 is used for analyzing the ip address, the mac address and the ap configuration of the video conference host when the network information of the video conference host is identified in the broadcast message.

[0093] The determination module 203 is used for determining that the video conference host is the original video conference host when the analyzed mac address is the same as the saved mac address of the original video conference host.

[0094] The application module 204 is used for sending a tcp network connection application to the video conference host according to the analyzed ip address of the video conference host.

[0095] The linkage module 205 is used for recovering linkage with the original video conference host when the video conference host agrees with the tcp network connection application of the video conference accessory.

[0096] In the embodiment of the application, the application module 204 comprises a judgment unit, a first application unit and a second application unit.

[0097] The judgment unit is used for judging the network topology at this time.

[0098] The first application unit is used for sending a tcp network connection application to the video conference host according to the analyzed ip address of the video conference host if the network topology at this time is wired direct connection or local area network connection.

[0099] The second application unit is used for, if the network topology at this time is ap connection, automatically connecting to the hotspot of the video conference host through the ap configuration of the video conference host parsed, receiving the network of the video conference host, and sending a tcp network connection application to the video conference host according to the ip address of the video conference host parsed.

[0100] The third aspect of the present application provides a video conference system, comprising: a video conference accessory and a video conference host.

[0101] The video conference accessory executes the video conference system device automatic recovery linkage method described in the first aspect and any embodiment of the first aspect.

[0102] In summary, the video conference system and the device automatic recovery linkage method and device provided by the embodiments of the present application can search and broadcast information through the Bluetooth BLE of the video conference accessory after the accessory and the host are disconnected, identify the network information of the video conference host, parse the related network information of the video conference host, compare the parsed mac address with the mac address of the original video conference host saved in the video conference accessory, judge the network topology of the video conference accessory at this time, directly establish the tcp connection between the two if it is wired direct connection or local area network connection, connect the hotspot of the video conference host according to the ap configuration of the host if it is ap connection, and then establish the tcp connection between the two to recover the linkage between the video conference accessory and the host. The pairing connection can be automatically and quickly recovered without manual intervention when the video conference host and the video conference accessory are disconnected.

[0103] The above-described specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above-described specific embodiments are only for the specific embodiments of the present application and are not used to limit the protection scope of the present application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A video conference system device automatic recovery linkage method, characterized in that, The application comprises the following steps: After losing connection with the original video conference host, start searching for broadcast messages through Bluetooth BLE; When it is identified that the broadcast message contains network information of the video conference host, parse the IP address, MAC address and AP configuration of the video conference host; When the parsed MAC address is the same as the saved MAC address of the original video conference host, determine that the video conference host is the original video conference host; According to the parsed IP address of the video conference host, send a TCP network connection application to the video conference host; When the video conference host agrees to the TCP network connection application of the video conference accessory, restore the linkage with the original video conference host.

2. The video conference system device automatic recovery linkage method according to claim 1, wherein, According to the parsed IP address of the video conference host, send a TCP network connection application to the video conference host, specifically: Determine the network topology at this time; If the network topology at this time is wired direct connection or LAN connection, send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host; If the network topology at this time is AP connection, automatically connect to the hotspot of the video conference host through the parsed AP configuration of the video conference host, receive the network of the video conference host, and send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host.

3. The video conference system device automatic recovery linkage method according to claim 1, wherein, When it is identified that the broadcast message contains network information of the video conference host, parse the IP address, MAC address and AP configuration of the video conference host, further comprising: When the identified broadcast message contains network information of a non-video conference host device, do not pair with the non-video conference host device.

4. The video conference system device automatic recovery linkage method according to claim 1, wherein, When the parsed MAC address is the same as the saved MAC address of the original video conference host, further comprising: When the parsed MAC address is not the same as the saved MAC address of the original video conference host, continue searching through Bluetooth BLE until the network information of the original video conference host is searched.

5. The video conference system device automatic recovery linkage method according to claim 1, wherein, The saved MAC address of the original video conference host is specifically: Search the current network information of the original video conference host broadcasted through Bluetooth BLE; According to the searched network information of the original video conference host, establish the network topology between the original video conference host and the video conference accessory, and pair with the original video conference host; After the first pairing linkage with the original video conference host, save the MAC address of the original video conference host.

6. The video conference system device automatic recovery linkage method according to claim 5, wherein, The current network information of the original video conference host broadcasted by the original video conference host is specifically: The original video conference host continuously broadcasts its current network information through Bluetooth BLE until a preset stop broadcasting condition is reached or a preset maximum number of connected accessories is reached.

7. The video conference system device automatic recovery linkage method according to claim 5, wherein, The network topology between the original video conference host and the video conference accessory includes wired direct connection, LAN connection and AP connection.

8. A video conference system device automatic recovery linkage apparatus characterized by comprising: The application comprises the following steps: A search module, a parsing module, a determination module, an application module and a linkage module; The search module is used to start searching for broadcast messages through Bluetooth BLE after losing connection with the original video conference host; The parsing module is configured to parse the IP address, the MAC address and the AP configuration of the video conference host when it is identified that the network information of the video conference host is contained in the broadcast message; The determining module is configured to determine that the video conference host is the original video conference host when the parsed MAC address is the same as the saved MAC address of the original video conference host; The applying module is configured to send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host; The linkage module is configured to restore linkage with the original video conference host when the video conference host agrees to the TCP network connection application of the video conference accessory.

9. The video conferencing system device automatic recovery linkage of claim 8, wherein, The applying module comprises a judging unit, a first applying unit and a second applying unit. The judging unit is configured to judge the network topology at this time; The first applying unit is configured to send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host if the network topology at this time is wired direct connection or LAN connection; The second applying unit is configured to automatically connect to the hotspot of the video conference host through the parsed AP configuration of the video conference host, receive the network of the video conference host, and send a TCP network connection application to the video conference host according to the parsed IP address of the video conference host if the network topology at this time is AP connection.

10. A video conferencing system characterized by It comprises: a video conference accessory and a video conference host; The video conference accessory executes the video conference system device automatic linkage recovery method according to any one of claims 1 to 7.

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