A method for upgrading equipment in a mesh network
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A device and network technology, which is applied in the field of device upgrades in mesh networks, can solve the problem that it takes a long time to upgrade devices, and achieve the effects of not easily interrupting the transmission rate, saving time, and having a high success rate.
Active Publication Date: 2021-03-30
ESPRESSIF SYST SHANGHAI
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The larger the network and the deeper the hierarchy, it may take a long time to upgrade all devices
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Embodiment 1
[0023] For the mesh network, when the network type is different, the number of corresponding parent nodes of each node is also different. For example, in a connected network, each node has only one parent node.
[0024] In a connectionless network, each node may have multiple parent nodes, that is, the parent node is not targeted, and can be understood as the next-hop address leading to the exit direction.
[0025] Such as figure 1 Shown, the mesh network (wireless mesh network) of the present invention is a kind of tree network, comprises a plurality of nodes; Multiple nodes are classified according to the level depth of mesh network, can be divided into: leaf node, intermediate node and root node.
[0026] Among them, a leaf node is a node without child nodes, and a root node is an exit for other nodes in the mesh network to access external devices in the external IP network through a router, that is, the root node has no corresponding parent node. Therefore, except for l...
Embodiment 2
[0049] The device upgrade method in the mesh network of the present invention can also select the target device for requesting firmware for the device through the strength of the signal, so that when the device (also called a node) is upgraded, the success rate of data transmission during communication between devices is guaranteed to be high, and the transmission rate is high. Efficient and fast.
[0050] The method for upgrading the equipment in the mesh network provided by Embodiment 2 mainly includes:
[0051] 1. Put the device type and firmware information of the device to be upgraded (the first node) in the Wi-Fi IE (also called Wi-Fi information element, IE is information element), and send it to the first node through the management frame surrounding equipment. For example, if figure 2 As shown, the surrounding devices of the first node to be upgraded may be the parent node or sibling node or child node of the first node, the upper parent node of the parent node or ...
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Abstract
The invention discloses a method for upgrading equipment in a mesh network, which includes the following process: the first node to be upgraded sends its corresponding Wi-Fi information element to the surrounding nodes of the first node, and the Wi-Fi information element contains the first The device type information of the node and the firmware version information required for upgrading; the first node listens to the information sent by the surrounding nodes when communicating with it, and obtains the respective device types, firmware version information and signal strength of the surrounding nodes during communication; the first node communicates with the surrounding nodes All the matching surrounding nodes choose to send an upgrade request to the node with the best signal strength to obtain the required firmware information and upgrade. The present invention is applicable to the situation that the device regularly visits the external device to inquire about the new firmware and chooses to upgrade, and the upgrade is the situation where the external device actively pushes new firmware information to the device, and the new firmware can be obtained nearby, saving time; and the device with a strong signal strength can also be selected Request firmware, data transmission success rate is high, the transmission rate is fast and not easy to break.
Description
technical field [0001] The invention relates to the technical field of wireless mesh networks, in particular to a method for upgrading equipment in the mesh network. Background technique [0002] The wireless mesh network (wireless mesh network) is composed of mesh routers (routers) and mesh clients (clients), among which the mesh routers constitute the backbone network and are connected to the wireless internet network, responsible for providing multi-hop wireless internet connections for meshclients . [0003] When a device (also referred to as a node) involved in the network is upgraded, most of the prior art accesses the external IP network through the only router of the mesh network, and accesses the external device to obtain firmware information required for the upgrade. Among them, the exit of the mesh network accessing the external IP network through the router is also called the root node, that is, in the prior art, all devices in the mesh network must be upgraded ...
Claims
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