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A network and device technology, applied in the field of device upgrades in the mesh network, can solve the problems of upgrading devices that take a long time, and achieve the effect of uninterrupted transmission rate, fast transmission rate, and time saving
Active Publication Date: 2018-07-31
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
[0030] 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 tree-like connected network, each node has only one parent node.
[0031] 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.
[0032] 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.
[0033] Among them, a leaf node is a node without child nodes, and a root node is an exit for accessing external devices in an external IP network through a router in the mesh network, that is, the root node has no corresponding parent node. Therefore, except for leaf...
Embodiment 2
[0056] 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.
[0057] The method for upgrading the equipment in the mesh network provided by Embodiment 2 mainly includes:
[0058] 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. The method includes the following steps: S1, taking a father node of a node to be upgraded as an initial query node, and receiving an upgrade request sent by the node to be upgraded and firmware information required for the upgrade; S2, when the query node includes upgrade firmware, enabling the node to be upgraded to obtain the upgrade firmware from the query node; S3, when the query node does not include the upgrade firmware, enabling the query node to query the firmware information of a child node in a mesh sub-network of the query node; and S4, when the query node finds the child node including the upgrade firmware in the mesh sub-network of the query node, acquiring the upgrade firmware from the child node; and when the query node cannot find the child node including the upgrade firmware in the mesh sub-network of the query node, enabling the query node to send the upgrade request and the firmware information required for the upgrade to the father node, and circularly performing the step S2. According to the scheme of the invention, the new firmware can be obtained nearby, and once the network scale becomes larger, the depth becomes deeper, the effect becomes more obvious, and the network upgrade time can be greatly saved.
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). The mesh routers form the backbone network and are connected to the wireless internet network, and are responsible for providing multi-hop wireless internet connections for the mesh clients. [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 through...
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