Design And Implementation Of Networking Scheme For Broadband Micro-power Communication Module

In the current consumer electricity information collection system,power line carrier technology occupy the mainstream position.In particular,broadband power line carrier technology can not only save the cost of deployment,but also improve the data rate.Broadband power line carrier technology networking scheme,signal transmission is limited by the power line layout,poor networking flexibility.The broadband power line carrier technology uses a single-frequency point networking method,which causes serious interference between networks and large coordination overhead between networks.The real-time route repair adopts the whole network broadcast mode,which increases the network overhead.The current technology has higher requirements for real-time data transmission,networking flexibility,anti-interference,etc.The existing networking solutions have been unable to meet the requirements and are facing huge challenges.Firstly,in this thesis,under the broadband micro-power wireless technology,a multi-frequency multi-network coexistence network scheme is proposed.Taking one of the frequency points as the common frequency point,the networking scheme can make full use of the spectrum resources,shorten the scanning time of frequency points,reduce the networking time.Innovate white-list configuration methods to reduce the amount of message forwarding and improve network stability.Innovative agent node selection algorithm can achieve the minimum number of agent nodes and balance the load of agent nodes.Improved real-time route repair algorithm for half-directional directional broadcast,reducing network overhead and reducing route repair delay.Improve the agent change algorithm to ensure the validity of the stored information.The networking time,network overhead,route repair delay and network stability are analyzed theoretically.Then,according to the functional design of the networking scheme,it is developed on the Linux system and placed on the ARM+u COS platform to run.Finally,the protocol consistency test platform is used to verify the protocol consistency of the networking scheme.In the broadband micro-power multi-frequency points networking scheme,when the number of working frequency points is greater than three,the networking time startsto be shorter than the broadband power line carrier networking.If two nodes are connected to the network as a level one nodes,the packet forwarding can be reduced twice.The more nodes,the larger the level,the more obvious the effect.Broadcast in half direction can reduce the network overhead by 6.7%-93.8%.For each additional layer,the network overhead is reduced by 6.7%.From the perspective of engineering applications,the author designs,implements,and verifies an efficient multi-frequency points and multi-network coexistence networking solution,which is applied to the broadband micro-power wireless user power information collection scenario.