Research On Wireless MESH Software System Based On Bidirectional Sub-G Chip

Since the beginning of this century,especially in the past ten years,with the development of wireless communication technology and the reduction of module cost,the Internet of things and smart home industry have been developed rapidly.People have met the requirements of more efficient control system through the research of wireless communication.The main communication modes of wireless control system are Bluetooth,Zig Bee,Wi-Fi and so on.The above three protocols have different advantages and disadvantages in the communication between Internet of things and smart home ecology.Nowadays,the communication protocol of Internet of things intelligent devices on the market does not have a certain unified standard,which causes some difficulties to the interconnection and control of multi-Internet of things terminals.In this paper,the scheme of the automatic frequency-hopping mesh network(MCMI)and the double-path concurrent automatic frequency-hopping mesh network is proposed,and the wireless MESH intelligent home control system based on the two-way Sub-G is designed in combination with the user's control terminal.The architecture design of the system is based on three different modules,namely a Sub-G wireless communication module,a device user interaction module and a crossdomain network access module,Direct data communication and exchange between the cross-domain of the home local area network and the end network of the mobile phone.For Mesh networking technology,the equipment of networking node,that is,device terminal,is required to be higher and more expensive.Therefore,compared with the general Mesh network,the communication structure between three layers of terminals is added in the design.The star topology is formed between drop layer and transport layer,and the multi-connection tree structure is formed between the second layer(transport layer)and the third layer(target layer).The networking structure designed by this method greatly increases the simplicity and minimizes the hardware requirements of the equipment,so it is suitable for the wireless networking data interaction of the terminal equipment in terms of ease of use and cost.For automatic frequency hopping technology,MCMI(multi-channel and multi-interface,multichannel multi-interface)combined with dual-path concurrent communication mode is used to allocate orthogonal channels with as little interference in interference domain as possible through MCMI's data link,and two disjoint paths are set between the same source node and the target node to transmit the data to the target node at the same time.In order to reduce the probability of control signal interruption caused by network outage or network instability,the stability of the system is improved,and the data transmission efficiency of wireless Mesh network is higher.in order to cope with the use of a single communication technology,the cost of the device can be expressed in the "Jingneng Zhi-control"(i.e.,the cost of the device,which can represent the power consumption of the device,the user mobile terminal of the intelligent indicating device,The present system designs a combination control structure of the wired network(wired network),the Wi-Fi network(wireless network)and the network of the Sub-G frequency band due to the problems that the cost,the power consumption,the control range,the mobile terminal intelligent control and the like of the intelligent home equipment can not be taken into account due to the control performance of the control means(the control performance of the equipment),So as to be constructed as a hybrid control network.In order to cope with the difficulty in the design and development of the smart home,the cost,the power consumption of the equipment,the convenience of the user in the interaction,the control and detection of the equipment and the like are difficult to be met at the same time.Therefore,the system introduces the orthogonal channel of the MCMI combined with the dual-path,improves the transmission efficiency,and then combines the home local area network,the wireless network and the sub-G communication network of the intelligent equipment.Due to the differentiation of design technology of household intelligent devices due to different manufacturers,it is difficult to become a complete system.Therefore,by integrating the existing protocols and integrating the systems specially used for network communication,the intelligent devices of "princes split" have a special protocol in the upper layer,which can be used for subsequent upgrades.After testing,the system has the characteristics of stable operation,excellent performance,high reliability\,easy to use,low cost and so on,which meets the requirements of practical use in the family.