A network node address allocation method in an asymmetric zigbee network
A network node and distribution method technology, applied in the direction of electrical components, transmission systems, etc., can solve the problems of idle addresses of other nodes and exhaustion of node network addresses, so as to achieve the effect of improving utilization rate, integrity and smoothness, and avoiding address exhaustion
Inactive Publication Date: 2018-07-27
NANJING AOTEMAI NEW INFORMATION TECH CO LTD
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is that when the existing node network addresses are allocated, the network addresses of some nodes are easily exhausted and the addresses of other nodes are idle.
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Embodiment Construction
[0021] Such as figure 1 Shown, in the asymmetric ZigBee network of the present invention, network node address distribution method comprises the steps:
[0022] Step 1, network pre-planning, divide the nodes in the network into root nodes, branch nodes and end nodes, and set the network address pool allocation ratio as P%;
[0023] Step 2, start the root node to establish a network, set the address pool range of the root node to the address range of the entire network, and assign addresses to the root node itself according to the principle of median address priority;
[0024] Step 3, the branch node is connected to the network, and the branch node applies for the branch node address pool from the parent node according to its own network branch expansion needs. The applied branch node address pool accounts for P% of the parent node address pool, and the parent node receives the address pool After the pool application, judge whether there is a free unallocated address pool. If ...
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The invention provides a network node address allocation method in an asymmetrical ZigBee network. The steps include: network pre-planning, starting a root node to establish a network, branch nodes entering the network and end nodes entering the network. This address allocation method adopts the branch node to apply for the branch node address pool from the parent node according to the branch expansion of its own network, and abandons the allocation method that the parent node assigns the address to the child node according to a predetermined formula, making it more flexible when dealing with asymmetric Zigbee networks , effectively solve the problem of address exhaustion and low utilization rate, and at the same time use the principle of median address priority to facilitate the implementation of the address pool dynamic adjustment method when the address is exhausted, which can effectively avoid the problem of address exhaustion.
Description
technical field [0001] The invention relates to an address allocation method, in particular to an address allocation method for network nodes. Background technique [0002] With the development of the Internet of Things, Zigbee wireless network has been widely used as an important wireless communication network. In the traditional Zigbee, the network address allocation adopts the Distributed Address Allocation Mechanism (DAAM). DAAM is a method of symmetric network address allocation. This mechanism stipulates the maximum depth of the network, the maximum number of child nodes of the parent node, and the maximum number of child node routes before the network is constructed. The maximum depth of the Zigbee network using this method is 16 levels, and the maximum number of sub-node routes is 1 at this time, that is, there is no branch network. Moreover, it is very easy for some nodes in the network to run out of network addresses, while other nodes' network addresses are free...
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IPC IPC(8): H04L29/12
CPCH04L61/50H04L2101/681
Inventor 辛博朱张青李文利
Owner NANJING AOTEMAI NEW INFORMATION TECH CO LTD