CN112333783A - Network roaming method and device, router, electronic equipment and readable storage medium - Google Patents
Network roaming method and device, router, electronic equipment and readable storage medium Download PDFInfo
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Abstract
The invention relates to the technical field of communication of the Internet of things, and discloses a network roaming method, a network roaming device, a router, electronic equipment and a readable storage medium, wherein the method comprises the following steps: the method comprises the steps that a routing device obtains first signal strength between a local device and a target device; judging whether the first signal strength meets a first preset condition or not; and when the signal intensity meets a first preset condition, sending roaming information to the target equipment, wherein the roaming information carries the information of the node to be roamed. The target equipment receives a roaming message sent by a current node; scanning each node to be roamed to determine a second signal strength between the local and each node to be roamed; and determining the target roaming node based on the first signal strength and second signal strength between the local node and each node to be roamed. By implementing the invention, the target equipment can acquire the network node with better signal in real time in the moving process, thereby ensuring the stability of the network link between the target equipment and the routing equipment.
Description
Technical Field
The invention relates to the technical field of communication of the Internet of things, in particular to a network roaming method, a network roaming device, a router, electronic equipment and a readable storage medium.
Background
Along with the development of the internet of things and smart home, smart home equipment is more and more favored because of the characteristics of convenience in operation and control and the like. At present, home intelligent equipment on the market mainly comprises fixedly-arranged intelligent home equipment (such as an air conditioner) and movable intelligent home equipment (such as a sweeping robot), and a Wireless (wifi) module is usually carried in the home intelligent equipment by default.
For a large-dwelling house, a plurality of routers are usually distributed, and a wireless local area network (mesh) network is formed by the plurality of routers, so as to achieve a good wifi coverage effect. At this moment, carry the portable smart machine of wifi module, like the robot of sweeping the floor, because its position can change, can't ensure its internet access's stability. However, the wifi module in the current smart home devices does not support roaming technology generally, and then it is difficult to ensure that the smart home devices can connect to the network node with better signal in real time, so how to ensure that the smart devices carrying the wifi module can connect to the network node with better signal in real time in the mobile process, so as to ensure the link stability, which becomes the problem to be solved urgently.
Disclosure of Invention
In view of this, embodiments of the present invention provide a network roaming method, an apparatus, a router, an electronic device, and a readable storage medium, so as to solve the problem that when a plurality of routers are deployed in a large-subscriber type, an intelligent device is difficult to connect to a network node with a good signal in real time during a moving process, and a link stability is poor.
According to a first aspect, an embodiment of the present invention provides a network roaming method, including the following steps: acquiring a first signal strength between a local device and a target device; judging whether the first signal strength meets a first preset condition or not; and when the signal intensity meets the first preset condition, sending roaming information to the target equipment, wherein the roaming information carries information of a node to be roamed.
The network roaming method provided by the embodiment of the invention judges whether the first signal strength meets a first preset condition by acquiring the first signal strength between the local device and the target device, and sends roaming information to the target device when the signal strength meets the first preset condition. Wherein, the roaming message carries the information of the node to be roamed. The method realizes that the target equipment can acquire the network node with better signal in real time in the moving process, thereby ensuring the stability of the network link between the target equipment and the routing equipment.
With reference to the first aspect, in a first implementation of the first aspect, the method further includes: receiving an execution roaming message sent by the target equipment; disconnecting the target device.
According to the network roaming method provided by the embodiment of the invention, after the roaming execution message sent by the target equipment is received, the connection with the target equipment is disconnected, so that the target equipment can be connected with a network node with a better signal in real time in the moving process.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the performing roaming message carries a disassociation request, and the method further includes: marking the target device as prohibited from connecting.
In the network roaming method provided by the embodiment of the invention, the execution roaming message carries the disassociation request, and after the execution roaming message sent by the target equipment is received, the target equipment is marked as connection prohibition, so that the target equipment is prevented from being connected to the current node again.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the method further includes: receiving a connection completion message sent by a target roaming node, wherein the target roaming node is a roaming node determined by the target equipment from the nodes to be roamed; marking the target device as connectable.
The network roaming method provided by the embodiment of the invention receives the connection completion message sent by the target roaming node, the target roaming node is the roaming node determined by the target equipment from the nodes to be roamed, and the target equipment is marked as connectable so that the target equipment can be accessed to the current node again.
According to a second aspect, an embodiment of the present invention provides a network roaming method, including the following steps: receiving a roaming message sent by a current node, wherein the roaming message carries information of a node to be roamed, and the roaming message is determined based on a first signal strength between a local node and the current node; scanning each node to be roamed to determine a second signal strength between the local node and each node to be roamed; and determining a target roaming node based on the first signal strength and second signal strength between the local node and each node to be roamed.
In the network roaming method provided by the embodiment of the present invention, the local device receives the roaming message sent by the current node, extracts the information of the nodes to be roamed carried in the roaming message, scans each node to be roamed, determines the second signal strength value between the local node and each node to be roamed, and determines the target roaming node based on the first signal strength value between the local node and the current node and the second signal strength value between the local node and the node to be roamed. The method realizes that the target equipment can acquire the network node with better signals in real time in the moving process, ensures that the target equipment can be connected with the network node with better signals in real time, and further ensures the stability of a network link between the target equipment and the routing equipment.
With reference to the second aspect, in a first implementation manner of the second aspect, the determining a target roaming node based on the first signal strength and a second signal strength between a home node and each of the nodes to be roamed includes: judging whether the first signal intensity is smaller than a first preset threshold value or not, and whether the second signal intensity is larger than a second preset threshold value or not; and when the first signal strength is smaller than a first preset threshold value and the second signal strength is larger than a second preset threshold value, taking the node to be roamed corresponding to the second signal strength as the target roaming node.
In the network roaming method provided by the embodiment of the present invention, the local device determines whether the first signal strength is smaller than a first preset threshold, and whether the second signal strength is greater than a second preset threshold; and when the first signal strength is smaller than a first preset threshold value and the second signal strength is larger than a second preset threshold value, taking the node to be roamed corresponding to the second signal strength as a target roaming node so as to ensure that the target equipment can be connected with a network node with higher signal strength in the moving process.
With reference to the first implementation manner of the second aspect, in a second implementation manner of the second aspect, the determining a target roaming node based on the first signal strength and a second signal strength between a home node and each of the nodes to be roamed further includes: when the first signal strength is greater than or equal to the first preset threshold value and the second signal strength is less than or equal to the second preset threshold value, acquiring a packet sending rate, a packet receiving rate and a message interaction delay between a local node and a current node; judging whether the packet sending rate is smaller than a packet sending threshold, whether the packet receiving rate is smaller than a packet receiving threshold and whether the message interaction delay is larger than a preset delay threshold; when the packet sending rate is smaller than a packet sending threshold, the packet receiving rate is smaller than a packet receiving threshold, and the message interaction delay is larger than a preset delay threshold, judging whether the second signal strength is larger than a third preset threshold; and when the second signal strength is greater than a third preset threshold value, taking the node to be roamed corresponding to the second signal strength as the target roaming node.
In the network roaming method provided by the embodiment of the present invention, when the first signal strength is greater than or equal to a first preset threshold and the second signal strength is less than or equal to a second preset threshold, a packet sending rate, a packet receiving rate and a packet interaction delay between a local node and a current node are obtained, whether the packet sending rate is less than the packet sending threshold, whether the packet receiving rate is less than the packet receiving threshold, and whether the packet interaction delay is greater than the preset delay threshold are determined, when the packet sending rate is less than the packet sending threshold, the packet receiving rate is less than the packet receiving threshold, and the packet interaction delay is greater than the preset delay threshold, whether the second signal strength is greater than a third preset threshold is continuously determined, and when the second signal strength is greater than the third preset threshold, a node to be roamed corresponding to the second signal strength is taken as a target roaming node. And determining the target roaming node by combining the packet sending rate, the packet receiving rate, the message interaction delay and the signal strength pair, ensuring the signal strength of the network node connected with the target equipment, and ensuring the stability of a network link between the target equipment and the routing equipment.
According to a third aspect, an embodiment of the present invention provides a network roaming apparatus, including: the acquisition module is used for acquiring first signal strength between local and target equipment; the judging module is used for judging whether the first signal strength meets a first preset condition or not; and the sending module is used for sending roaming information to the target equipment when the signal strength meets the first preset condition, wherein the roaming information carries information of a node to be roamed.
The network roaming device provided by the embodiment of the invention judges whether the first signal strength meets the first preset condition by acquiring the first signal strength between the local device and the target device, and sends roaming information to the target device when the signal strength meets the first preset condition. Wherein, the roaming message carries the information of the node to be roamed. The device realizes that the target equipment can acquire the network node with better signal in real time in the moving process, thereby ensuring the stability of the network link between the target equipment and the routing equipment.
According to a fourth aspect, an embodiment of the present invention provides a network roaming apparatus, including: a receiving module, configured to receive a roaming message sent by a current node, where the roaming message carries information of a node to be roamed, and the roaming message is determined based on a first signal strength between a local node and the current node; a scanning module, configured to scan each node to be roamed to determine a second signal strength between a home and each node to be roamed; and the determining module is used for determining the target roaming node based on the first signal strength and second signal strength between the local node and each node to be roamed.
In the network roaming apparatus provided in the embodiment of the present invention, the local device receives the roaming message sent by the current node, extracts the information of the to-be-roamed node carried in the roaming message, scans each to-be-roamed node, determines the second signal strength value between the local node and each to-be-roamed node, and determines the target roaming node based on the first signal strength value between the local node and the current node and the second signal strength value between the local node and the to-be-roamed node. The device realizes that the target equipment can acquire the network node with better signals in real time in the moving process, ensures that the target equipment can be connected with the network node with better signals in real time, and further ensures the stability of a network link between the target equipment and the routing equipment.
According to a fifth aspect, an embodiment of the present invention provides a router, including: a first memory and a first processor, the first memory and the first processor being communicatively connected to each other, the first memory having stored therein computer instructions, and the first processor executing the computer instructions to perform the network roaming method according to the first aspect or any embodiment of the first aspect.
According to a sixth aspect, an embodiment of the present invention provides an electronic device, including: a second memory and a second processor, the second memory and the second processor being communicatively connected to each other, the second memory having stored therein computer instructions, and the second processor executing the computer instructions to perform the network roaming method according to the second aspect or any embodiment of the second aspect.
According to a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are configured to cause a computer to execute the network roaming method according to the first aspect or any of the embodiments of the first aspect, or execute the network roaming method according to any of the second aspect or any of the embodiments of the second aspect.
Drawings
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 that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a network roaming method according to an embodiment of the present invention;
fig. 2 is a flowchart of a network roaming method according to an embodiment of the present invention;
fig. 3 is a flowchart of a network roaming method according to an embodiment of the present invention;
fig. 4 is a flowchart of a network roaming method according to an embodiment of the present invention;
fig. 5 is a flowchart of a network roaming method according to an embodiment of the present invention;
fig. 6 is a block diagram of a structure of a network roaming apparatus according to an embodiment of the present invention;
fig. 7 is a block diagram of a structure of a network roaming apparatus according to an embodiment of the present invention;
fig. 8 is a schematic hardware structure diagram of a router according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
For a large-dwelling house, a plurality of routers are usually distributed, and a wireless local area network (mesh) network is formed by the plurality of routers, so as to achieve a good wifi coverage effect. The Mesh network generally includes a plurality of network nodes, i.e., Access Points (APs), and the distances between the APs and the router are different, and the signal strengths thereof are different. However, the wifi module in the current smart home devices does not support the roaming technology generally, and for the mobile smart device carrying the wifi module, because the position of the mobile smart device can change, it is difficult to ensure that the smart home devices can be connected to the network node with better signal in real time, and further it is difficult to ensure the stability of the network link.
Based on the above, the invention determines whether the target device needs roaming according to the signal strength between the wireless AP and the target device, thereby ensuring that the target device can be connected with the wireless AP with higher signal strength in real time and ensuring the network link stability of the target device.
Taking the sweeping robot as an example, when the sweeping robot is connected to the mesh network for operation, the position of the sweeping robot is constantly changed in the operation process, so that the stability of the network link is difficult to ensure. According to an embodiment of the present invention, there is provided a network roaming method embodiment, it should be noted that the steps shown in the flowchart of the figure may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases the steps shown or described may be performed in an order different than here.
In this embodiment, a network roaming method is provided, which may be used in a routing device, such as a wireless router, a switch, and the like, and fig. 1 is a flowchart of a network roaming method according to an embodiment of the present invention, as shown in fig. 1, where the flowchart includes the following steps:
s11, a first signal strength between the local and target devices is obtained.
The local area is a routing device, and the routing device may include a plurality of routing devices, and a mesh network is constructed by the plurality of routing devices. Specifically, the routing device may be a wireless router, and the network topology is constructed by setting a main route and a sub-route, that is, a mesh network is formed by the main route and the sub-route. The target device is a movable intelligent device carrying a WiFi module, such as a sweeping robot. The present application does not limit the routing device and the target device.
The present embodiment takes a sweeping robot and a wireless router as examples for explanation. The mesh network formed by the wireless routers usually comprises a plurality of wireless APs, and the sweeping robot can access the mesh network through any wireless AP. The first signal strength is a network signal strength between the wireless router and the target device, and is used for representing network link quality. The greater the first signal strength, the better the quality of the network link between the wireless router and the target device is characterized.
S12, determining whether the first signal strength satisfies a first predetermined condition.
The first preset condition is that the first signal strength is lower than a preset signal strength threshold value between the current node and the sweeping robot. The preset signal strength threshold is a signal strength value corresponding to roaming. When the first signal strength meets the first preset condition, executing step S13, otherwise, executing to continue monitoring the first signal strength between the current node and the sweeping robot.
And S13, sending roaming information to the target equipment, wherein the roaming information carries the information of the node to be roamed.
When the first signal strength meets a first preset condition, the signal strength between the current node and the sweeping robot is represented to be small, and unstable network link is easily caused. At this time, the current node may send a roaming message to the sweeping robot through the wireless router, and the roaming message carries information of the node to be roamed, so that the sweeping robot may determine the target roaming node according to the received roaming message.
In the network roaming method provided by this embodiment, by obtaining the first signal strength between the local device and the target device, it is determined whether the first signal strength meets a first preset condition, and when the signal strength meets the first preset condition, the roaming information is sent to the target device. Wherein, the roaming message carries the information of the node to be roamed. The method realizes that the target equipment can acquire the network node with better signal in real time in the moving process, thereby ensuring the stability of the network link between the target equipment and the routing equipment.
In this embodiment, a network roaming method is provided, which can be used for routing devices, such as wireless routers, switches, and the like, and this embodiment is described by taking a sweeper robot and a wireless router as an example. Fig. 2 is a flowchart of a network roaming method according to an embodiment of the present invention, and as shown in fig. 2, the flowchart includes the following steps:
s21, a first signal strength between the local and target devices is obtained. For details, refer to the related description of step S11 in the above embodiment, and are not described herein again.
S22, determining whether the first signal strength satisfies a first predetermined condition. For details, refer to the related description of step S12 in the above embodiment, and are not described herein again.
And S23, when the signal strength meets a first preset condition, sending roaming information to the target device, wherein the roaming information carries information of the node to be roamed. For details, refer to the related description of step S13 in the above embodiment, and are not described herein again.
Optionally, the network roaming method further includes:
and S24, receiving the execution roaming message sent by the target device.
And executing the roaming message to indicate that the target equipment is to disconnect the current connecting node and connect to the target roaming node. After determining the target roaming node, the sweeping robot may generate an execution roaming message and send the execution roaming message to a home (wireless router), and the home (wireless router) may receive the execution roaming message sent by the target device.
S25, the connection with the target device is disconnected.
When a local (wireless router) receives a roaming execution message sent by the sweeping robot, the network link between the sweeping robot and the current node is disconnected, so that the sweeping robot can perform network link with the target roaming node, and the sweeping robot can be connected with the network node with better signals in real time in the moving process.
Optionally, the execution roaming message carries a disassociation request, and the network roaming method further includes:
s26, marking the target device as connection forbidden.
The disassociation request is a request message for disassociating the target device from the current node. When a local (wireless router) receives an execution roaming message sent by a sweeping robot, the network link between the sweeping robot and a current node can be released, and the sweeping robot is marked as forbidden to be connected, so that the sweeping robot is prevented from being connected to the current node again when the signal strength between the sweeping robot and a target roaming node is equal to the signal strength between the sweeping robot and the current node, and further the sweeping robot is prevented from being repeatedly disconnected and connected with the current node.
Optionally, the network roaming method further includes:
and S27, receiving the connection completion message sent by the target roaming node.
The target roaming node is a roaming node determined by the target equipment from the nodes to be roamed. When the sweeping robot is connected to the target roaming node, a connection completion message can be generated and sent to the local (wireless router). And the local (wireless router) receives the connection completion message sent by the target roaming node and updates the state of the current node.
S28, the target device is marked as connectable.
After the target device is connected to the target roaming node, the local (target router) may remove the target device in the connection prohibition list and mark the target device as connectable. Specifically, after the sweeping robot is connected to the target roaming node, the sweeping robot may send a connection completion message to the current node. At this time, the wireless router may mark the sweeping robot as connectable so that the sweeping robot can be connected to the current node again when moving into the coverage area of the current node again.
In the network roaming method provided by this embodiment, after receiving the roaming execution message sent by the target device, the target device is disconnected from the target device, so that the target device can be connected to the network node with a good signal in real time during the moving process. The execution roaming message carries a disassociation request, and after receiving the execution roaming message sent by the target device, the target device is marked as connection prohibition, so that the target device is prevented from being connected to the current router again. The target device is marked as connectable by receiving a connection complete message sent by the target roaming node so that the target device can access the current node again.
In this embodiment, a network roaming method is provided, which may be used for an electronic device carrying a WiFi module, where the electronic device may be a mobile intelligent terminal, such as a sweeping robot, and fig. 3 is a flowchart of the network roaming method according to the embodiment of the present invention, and as shown in fig. 3, the flowchart includes the following steps:
and S31, receiving the roaming message sent by the current node.
The roaming message carries information of a node to be roamed, and is determined based on the first signal strength between the local node and the current node. The current node can send the roaming message to the target device through the wireless router, and the target device can receive the roaming message sent by the current node. Specifically, when the first signal strength between the sweeping robot and the current node meets a first preset condition, the first signal strength is represented to be weaker, and the sweeping robot can be connected with a node to be roamed, which is stronger in signal strength. The wireless router can send the roaming message carrying the information of the node to be roamed to the sweeping robot, and the sweeping robot receives the roaming message.
And S32, scanning each node to be roamed to determine a second signal strength between the home and each node to be roamed.
The second signal strength is the signal strength between the target device and each node to be roamed. And the target equipment analyzes the roaming message, and sends a probe request frame to scan the information of each node to be roamed contained in the roaming message so as to acquire second signal strength between the local and each node to be roamed. Specifically, after the sweeping robot receives the roaming message, it may send a probe request frame to scan information of each node to be roamed included in the roaming message, and determine a second signal strength between the sweeping robot and each node to be roamed.
And S33, determining the target roaming node based on the first signal strength and the second signal strength between the local and each node to be roamed.
The target roaming node is a node to be roamed to which the target device is to be connected. And determining a target roaming node from each node to be roamed according to the first signal strength and the second signal strength. When the first signal strength meets a first preset condition, the target device is characterized to roam to other nodes, and at this time, the target roaming node can be determined according to the obtained second signal strength. Specifically, when the sweeping robot detects that the first signal strength meets a first preset condition in the moving process, second signal strength between the sweeping robot and each other node to be roamed is obtained, and the target roaming node is determined from each node to be roamed according to the second signal strength.
According to the network roaming method provided by the embodiment of the invention, the roaming message sent by the current node is received through the electronic equipment, the information of the nodes to be roamed carried by the roaming message is extracted, each node to be roamed is scanned, the second signal intensity value between the local node and each node to be roamed is determined, and the target roaming node is determined based on the first signal intensity value between the local node and the current node and the second signal intensity value between the local node and the node to be roamed. The method realizes that the target equipment can acquire the network node with better signals in real time in the moving process, ensures that the target equipment can be connected with the network node with better signals in real time, and further ensures the stability of a network link between the target equipment and the routing equipment.
In this embodiment, a network roaming method is provided, which may be used for an electronic device, where the electronic device may be a mobile intelligent terminal, such as a sweeping robot, and fig. 4 is a flowchart of the network roaming method according to the embodiment of the present invention, and as shown in fig. 4, the flowchart includes the following steps:
and S41, receiving the roaming message sent by the current node. The roaming message carries information of a node to be roamed, and is determined based on the first signal strength between the local node and the current node. For details, refer to the related description of step S31 in the above embodiment, and are not described herein again.
And S42, scanning each node to be roamed to determine a second signal strength between the home and each node to be roamed. For details, refer to the related description of step S32 in the above embodiment, and are not described herein again.
And S43, determining the target roaming node based on the first signal strength and the second signal strength between the local and each node to be roamed.
Specifically, the step S43 may include the following steps:
s431, determining whether the first signal strength is smaller than a first preset threshold, and whether the second signal strength is greater than a second preset threshold.
The first preset threshold is the minimum value of the signal strength between the target device and the current node, the second preset threshold is the signal strength between the target device and the node to be roamed, and the second signal strength is greater than the first signal strength. And when the first signal strength is smaller than the first preset threshold and the second signal strength is larger than the second preset threshold, representing that the signal strength between the target device and the current node is very weak, executing step S432, otherwise executing step S433.
And S432, taking the node to be roamed corresponding to the second signal strength as a target roaming node.
When the first signal strength is smaller than the first preset threshold and the second signal strength is larger than the second preset threshold, it is characterized that the signal strength between the target device and the current node is very weak, and the signal strength between the target device and the node to be roamed is strong, at this time, the target device needs to be directly connected with the node to be roamed corresponding to the second signal strength, that is, the node to be roamed corresponding to the second signal strength is used as the target roaming node.
And S433, acquiring packet sending rate, packet receiving rate and message interaction delay between the local node and the current node.
And when the first signal strength meets a first preset condition and the first signal strength is greater than or equal to a first preset threshold, acquiring a packet sending rate, a packet receiving rate and message interaction delay between the target device and the current node if the second signal strength is less than or equal to a second preset threshold.
Specifically, when the first signal strength between the sweeping robot and the current node meets a first preset condition, it indicates that the sweeping robot meets the roaming condition, and network roaming can be triggered. If the first signal strength is greater than or equal to the first preset threshold value and the second signal strength is less than the second preset threshold value, in order to determine whether to execute network roaming, a packet sending rate, a packet receiving rate and a message interaction delay between the sweeping robot and the current node can be obtained.
S434, judging whether the packet sending rate is less than the packet sending threshold, the packet receiving rate is less than the packet receiving threshold, and the message interaction delay is greater than the preset delay threshold.
The packet sending threshold is the minimum value of the packet sending rate between the target device and the node to be roamed, the packet receiving threshold is the minimum value of the packet receiving rate between the target device and the node to be roamed, and the message interaction delay is the minimum value of the message interaction delay between the target device and the node to be roamed. According to the currently acquired packet sending rate, packet receiving rate and message interaction delay between the target device and the current node, the packet sending rate, the packet receiving rate and the message interaction delay are respectively compared with a packet sending threshold value and a packet receiving threshold value, and whether the packet sending rate is smaller than the packet sending threshold value, whether the packet receiving rate is smaller than the packet receiving threshold value and whether the message interaction delay is larger than the preset delay threshold value are determined. And executing the step S435 when the packet sending rate is less than the packet sending threshold, the packet receiving rate is less than the packet receiving threshold and the message interaction delay is greater than the preset delay threshold, otherwise, not executing any operation.
And S435, judging whether the second signal strength is greater than a third preset threshold value.
When the packet sending rate is less than the packet sending threshold, the packet receiving rate is less than the packet receiving threshold, and the message interaction delay is greater than the preset delay threshold, the network link quality representing the current node is poor, and the target device needs to search other nodes to be roamed with better signal strength for connection. At this time, whether the second signal strength is greater than a third preset threshold value is continuously judged. The third preset threshold is a signal strength value at which the target device can perform roaming connection with the node to be roamed, and is greater than the first preset threshold but smaller than the second preset threshold. And executing the step S436 when the second signal strength is greater than a third preset threshold, otherwise, executing other operations. The other operation may be directly linking to the node to be roamed corresponding to the second signal strength, or may continue to determine whether the second signal strength is greater than a third preset threshold, which is not specifically limited in the present application.
And S436, taking the node to be roamed corresponding to the second signal strength as a target roaming node.
When the second signal strength is greater than the third preset threshold, it indicates that the signal strength of the node to be roamed corresponding to the second signal strength is better, and at this time, the node to be roamed corresponding to the second signal strength may be used as a target roaming node, and the target device may be connected to the target roaming node.
In the network roaming method provided in this embodiment, by determining whether the first signal strength is smaller than a first preset threshold, and whether the second signal strength is greater than a second preset threshold; and when the first signal strength is smaller than a first preset threshold value and the second signal strength is larger than a second preset threshold value, taking the node to be roamed corresponding to the second signal strength as a target roaming node so as to ensure that the target equipment can be connected with a network node with higher signal strength in the moving process. When the first signal strength is greater than or equal to a first preset threshold value, and the second signal strength is less than or equal to a second preset threshold value, acquiring a packet sending rate, a packet receiving rate and a message interaction delay between a local node and a current node, judging whether the packet sending rate is less than the packet sending threshold value, whether the packet receiving rate is less than the packet receiving threshold value and whether the message interaction delay is greater than the preset delay threshold value, when the packet sending rate is less than the packet sending threshold value, the packet receiving rate is less than the packet receiving threshold value and the message interaction delay is greater than the preset delay threshold value, continuously judging whether the second signal strength is greater than a third preset threshold value, and when the second signal strength is greater than the third preset threshold value, taking a node to be roamed corresponding to the second signal strength as a target roaming node. And determining the target roaming node by combining the packet sending rate, the packet receiving rate, the message interaction delay and the signal strength pair, ensuring the signal strength of the network node connected with the target equipment, and ensuring the stability of a network link between the target equipment and the routing equipment.
In this embodiment, two routers are taken as an example, a main router is taken as a current node, and a sub-router is taken as a target roaming node, fig. 5 is a flowchart of a network roaming method according to an embodiment of the present invention, and as shown in fig. 5, the flowchart includes the following steps:
s51, the master router obtains a first signal strength between the local and the electronic device. For details, refer to the related description of step S11 in the above embodiment, and are not described herein again.
S52, the master router determines whether the first signal strength satisfies a first predetermined condition. For details, refer to the related description of step S12 in the above embodiment, and are not described herein again.
S53, the main router sends the roaming information to the electronic device, the roaming information carries the information of the sub-router. For details, refer to the related description of step S13 in the above embodiment, and are not described herein again.
S54, the electronic device receives the roaming message sent by the main router. For details, refer to the related description of step S31 in the above embodiment, and are not described herein again.
S55, the electronic device scans the sub-router to determine a second signal strength between the local and sub-routers. For details, refer to the related description of step S32 in the above embodiment, and are not described herein again.
S56, the electronic device determines a target roaming node based on the first signal strength and a second signal strength between the local and sub-routers. For details, refer to the related description of step S33 in the above embodiment, and are not described herein again.
S57, the master router receives the execution roaming message sent by the electronic device. For details, refer to the related description of step S24 in the above embodiment, and are not described herein again.
S58, the master router disconnects the connection with the electronic device. For details, refer to the related description of step S25 in the above embodiment, and are not described herein again.
S59, the master router marks the electronic device as connection disabled. For details, refer to the related description of step S26 in the above embodiment, and are not described herein again.
S510, the electronic equipment is connected to the sub-router, and the sub-router sends a connection completion message to the main router.
S511, the main router receives the connection completion message sent by the sub-router. For details, refer to the related description of step S27 in the above embodiment, and are not described herein again.
S512, the master router marks the target device as connectable. For details, refer to the related description of step S28 in the above embodiment, and are not described herein again.
In the network roaming method provided in this embodiment, the main router obtains the first signal strength between the local device and the target device, determines whether the first signal strength meets a first preset condition, and sends roaming information to the target device when the signal strength meets the first preset condition. Wherein, the roaming message carries the information of the node to be roamed. The method comprises the steps that the electronic equipment receives a roaming message sent by a current node, extracts information of nodes to be roamed carried by the roaming message, scans each node to be roamed, determines a second signal strength value between a local node and each node to be roamed, and connects to a target roaming node after determining the target roaming node based on a first signal strength value between the local node and the current node and a second signal strength value between the local node and the node to be roamed. The method realizes that the target equipment can acquire the network node with better signals in real time in the moving process, ensures that the target equipment can be connected with the network node with better signals in real time, and further ensures the stability of a network link between the target equipment and the routing equipment.
In this embodiment, a network roaming apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The present embodiment provides a network roaming apparatus, as shown in fig. 6, including:
the obtaining module 61 is configured to obtain a first signal strength between the local device and the target device. For details, refer to the related description of step S11 corresponding to the above embodiment, and are not repeated herein.
The determining module 62 is configured to determine whether the first signal strength satisfies a first preset condition. For details, refer to the related description of step S12 corresponding to the above embodiment, and are not repeated herein.
And a sending module 63, configured to send roaming information to the target device when the signal strength meets a first preset condition, where the roaming information carries information of a node to be roamed. For details, refer to the related description of step S13 corresponding to the above embodiment, and are not repeated herein.
The network roaming apparatus provided in this embodiment determines whether the first signal strength satisfies a first preset condition by obtaining the first signal strength between the local device and the target device, and sends roaming information to the target device when the signal strength satisfies the first preset condition. Wherein, the roaming message carries the information of the node to be roamed. The device realizes that the target equipment can acquire the network node with better signal in real time in the moving process, thereby ensuring the stability of the network link between the target equipment and the routing equipment.
The network roaming device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory executing one or more software or fixed programs, and/or other devices that may provide the above-described functionality.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
In this embodiment, a network roaming apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The present embodiment provides a network roaming apparatus, as shown in fig. 7, including:
the receiving module 71 is configured to receive a roaming message sent by a current node, where the roaming message carries information of a node to be roamed, and the roaming message is determined based on a first signal strength between a local node and the current node. For details, refer to the related description of step S31 corresponding to the above embodiment, and are not repeated herein.
The scanning module 72 is configured to scan each node to be roamed to determine a second signal strength between the home and each node to be roamed. For details, refer to the related description of step S32 corresponding to the above embodiment, and are not repeated herein.
A determining module 73, configured to determine a target roaming node based on the first signal strength and a second signal strength between the local node and each node to be roamed. For details, refer to the related description of step S33 corresponding to the above embodiment, and are not repeated herein.
In the network roaming apparatus provided in this embodiment, the local device receives the roaming message sent by the current node, extracts the information of the node to be roamed carried in the roaming message, scans each node to be roamed, determines a second signal strength value between the local node and each node to be roamed, and determines the target roaming node based on the first signal strength value between the local node and the current node and the second signal strength value between the local node and the node to be roamed. The device realizes that the target equipment can acquire the network node with better signals in real time in the moving process, ensures that the target equipment can be connected with the network node with better signals in real time, and further ensures the stability of a network link between the target equipment and the routing equipment.
The network roaming device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory executing one or more software or fixed programs, and/or other devices that may provide the above-described functionality.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
An embodiment of the present invention further provides a router, which has the network roaming apparatus shown in fig. 6.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a router according to an alternative embodiment of the present invention, and as shown in fig. 8, the router may include: at least one first processor 81, for example a CPU (Central Processing Unit), at least one first communication interface 83, a first memory 84, at least one first communication bus 82. Wherein a first communication bus 82 is used to enable connectivity communication between these components. The first communication interface 83 may include a Display (Display) and a Keyboard (Keyboard), and the optional first communication interface 83 may also include a standard wired interface and a standard wireless interface. The first Memory 84 may be a high-speed RAM Memory (volatile Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The first memory 84 may alternatively be at least one memory device located remotely from the first processor 81. Wherein the first processor 81 may be combined with the apparatus as described in fig. 6, the first memory 84 stores an application program, and the first processor 81 calls the program code stored in the first memory 84 for executing any of the above method steps.
The first communication bus 82 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The first communication bus 82 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 8, but this is not intended to represent only one bus or type of bus.
The first memory 84 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the first memory 84 may also comprise a combination of memories of the kind described above.
The first processor 81 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of the CPU and the NP.
The first processor 81 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
Optionally, the first memory 84 is also used to store program instructions. The first processor 81 may invoke program instructions to implement the network roaming method as shown in the embodiments of fig. 1 and 2 of the present application.
An embodiment of the present invention further provides an electronic device, which has the network roaming apparatus shown in fig. 7.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an electronic device according to an alternative embodiment of the present invention, and as shown in fig. 9, the electronic device may include: at least one second processor 91, e.g. a CPU (Central Processing Unit), at least one second communication interface 93, a second memory 94, at least one second communication bus 92. Wherein a second communication bus 92 is used to enable connection communication between these components. The second communication interface 93 may include a Display (Display) and a Keyboard (Keyboard), and the optional second communication interface 93 may also include a standard wired interface and a standard wireless interface. The second Memory 94 may be a high-speed RAM (Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The second memory 94 may alternatively be at least one memory device located remotely from the second processor 91. Wherein the second processor 91 may be combined with the apparatus described in fig. 7, the second memory 94 stores an application program, and the second processor 91 calls the program code stored in the second memory 94 for executing any of the above method steps.
The second communication bus 92 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The second communication bus 92 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.
The second memory 94 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the second memory 94 may also comprise a combination of memories of the kind described above.
The second processor 91 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of the CPU and the NP.
The second processor 91 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
Optionally, the second memory 94 is also used for storing program instructions. The second processor 91 may invoke program instructions to implement the network roaming method as shown in the embodiments of fig. 3 and 4 of the present application.
An embodiment of the present invention further provides a non-transitory computer storage medium, where the computer storage medium stores computer-executable instructions, and the computer-executable instructions may execute the processing method of the network roaming method in any method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (12)
1. A network roaming method, characterized by comprising the steps of:
acquiring a first signal strength between a local device and a target device;
judging whether the first signal strength meets a first preset condition or not;
and when the signal intensity meets the first preset condition, sending roaming information to the target equipment, wherein the roaming information carries information of a node to be roamed.
2. The method of claim 1, further comprising:
receiving an execution roaming message sent by the target equipment;
disconnecting the target device.
3. The method of claim 2, wherein the execute roaming message carries a disassociation request, the method further comprising:
marking the target device as prohibited from connecting.
4. The method of claim 3, further comprising:
receiving a connection completion message sent by a target roaming node, wherein the target roaming node is a roaming node determined by the target equipment from the nodes to be roamed;
marking the target device as connectable.
5. A network roaming method, characterized by comprising the steps of:
receiving a roaming message sent by a current node, wherein the roaming message carries information of a node to be roamed, and the roaming message is determined based on a first signal strength between a local node and the current node;
scanning each node to be roamed to determine a second signal strength between the local node and each node to be roamed;
and determining a target roaming node based on the first signal strength and second signal strength between the local node and each node to be roamed.
6. The method of claim 5, wherein determining a target roaming node based on the first signal strength and a second signal strength between a home node and each of the nodes to be roamed comprises:
judging whether the first signal intensity is smaller than a first preset threshold value or not, and whether the second signal intensity is larger than a second preset threshold value or not;
and when the first signal strength is smaller than a first preset threshold value and the second signal strength is larger than a second preset threshold value, taking the node to be roamed corresponding to the second signal strength as the target roaming node.
7. The method of claim 6, wherein determining a target roaming node based on the first signal strength and a second signal strength between a home node and each of the nodes to be roamed further comprises:
when the first signal strength is greater than or equal to the first preset threshold value and the second signal strength is less than or equal to the second preset threshold value, acquiring a packet sending rate, a packet receiving rate and a message interaction delay between a local node and a current node;
judging whether the packet sending rate is smaller than a packet sending threshold, whether the packet receiving rate is smaller than a packet receiving threshold and whether the message interaction delay is larger than a preset delay threshold;
when the packet sending rate is smaller than a packet sending threshold, the packet receiving rate is smaller than a packet receiving threshold, and the message interaction delay is larger than a preset delay threshold, judging whether the second signal strength is larger than a third preset threshold;
and when the second signal strength is greater than a third preset threshold value, taking the node to be roamed corresponding to the second signal strength as the target roaming node.
8. A network roaming apparatus, comprising:
the acquisition module is used for acquiring first signal strength between local and target equipment;
the judging module is used for judging whether the first signal strength meets a first preset condition or not;
and the sending module is used for sending roaming information to the target equipment when the signal strength meets the first preset condition, wherein the roaming information carries information of a node to be roamed.
9. A network roaming apparatus, comprising:
a receiving module, configured to receive a roaming message sent by a current node, where the roaming message carries information of a node to be roamed, and the roaming message is determined based on a first signal strength between a local node and the current node;
a scanning module, configured to scan each node to be roamed to determine a second signal strength between a home and each node to be roamed;
and the determining module is used for determining the target roaming node based on the first signal strength and second signal strength between the local node and each node to be roamed.
10. A router, comprising: a first memory and a first processor, the first memory and the first processor being communicatively coupled to each other, the first memory having stored therein computer instructions, the first processor executing the computer instructions to perform the network roaming method of any one of claims 1-4.
11. An electronic device, comprising: a second memory and a second processor, the second memory and the second processor being communicatively connected to each other, the second memory having stored therein computer instructions, the second processor executing the computer instructions to perform the network roaming method according to any one of claims 5 to 7.
12. A computer-readable storage medium storing computer instructions for causing a computer to perform the network roaming method of any one of claims 1-4, or the network roaming method of any one of claims 5-7.
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Application publication date: 20210205 |
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