Design And Implementation Of Wireless Sensing Network For Mountain State Based On LoRa

Wireless Sensor Network(WSN)is a kind of big data information acquisition and transmission network system which is a combination of sensor technology and wireless Adhoc communication technology.Nowadays,the distributed sensor network has been integrated into all walks of life in the 21 st century.The big data network with various sensors and sensor information gathered in the fields of industry,medical care,education,security,aviation,aerospace,defense and environment monitoring,.Today,the Internet,big data,machine learning,the Internet of Things(I.o.T),a new generation of mobile communications,parallel computing and so on are more or less intrinsically linked to sensory information.And tens of thousands of sensor information need to be brought together there are usually several ways,first,through the wired form of a simple physical media bus(SPI,I2 C,CAN,485,Ethernet,etc.),the second is through the wireless access network(4G,LPWAN(including Lo Ra,Narrow Band-Io T,NB-Io T),wireless ad-hoc network(Wi Fi),etc.)With the development of information technology and the growing maturity of ultra-low power wireless communication technology,the combination of distributed sensor network access and wireless ad hoc network has also become a more convenient combination.This year marks the revolution of the LPWAN technology.Two important branches of ultra-low power wireless LAN technology really enter the civilian market.One is the launch of Semtech and others The realization and application of Lo Ra networking technology proposed by Lo Ra Alliance and the implementation and application of NB-Io T standard under 3GPP framework.High availability of new wireless sensor networks In addition to the growing sophistication of communication architectures,consideration must also be given to the availability of costeffective ultra-low-power distributed sensors and processor chips for distributed computing.Nowadays,the high maturity of Micro-Electro-Mechanism System(MEMS)sensors makes this issue a reality.The maturity of the MEMS sensor must also include two aspects: one is the industry application index of high precision,low power consumption,high reliability and low price;secondly,the chips and application solutions that are mass-produced and meet the first point are released.Many excellent manufacturers of micro-electromechanical sensors born,providing cost-effective at the same time also provides with AB supporting(industrial production needs at least two sets of alternative solutions),making the distributed sensing industry,these low The price of high-quality sensors to be applied.While distributed computing and parallel processing units evolve with ARM's high-performance cores,there are numerous ARM core processors available on the market and column-wise FPGA(Field Programmable Gate Arrays)computing in parallel units.Which ARM core processor embedded floating-point arithmetic unit,FPGA is embedded DSP unit,BRAM,high-quality IP.One of the best and industry-ready applications is TI's MSP430 family and Xilinx Spartan's FPGA family,and its development environment has become more human and efficient.After combining the effectiveness of technical means and the completeness of ecological chain,how to solve the problem of real-time sensing and monitoring of mountain environment in our country is feasible.The development of human society is inevitably accompanied by the depletion of resources and changes in the environment.In recent years,the deteriorating mountain environment has more and more affected the lives and property in human production and life.China is a country with a high population density in the subregion and a mountainous environment inhabited by human beings.However,with the further deterioration of a series of mountain environments in recent years,the occurrence and impact of major mountainous disasters have also occurred.In the past,although there are many high-tech means to monitor a mountain or a piece.However,in general,the shortcomings of a single monitoring method,complex,high resource consumption,lead to the inability to more extensive deployment of monitoring points to more potentially damaging mountain,which makes the loss of monitoring and early The possibility of intervention,which eventually led to a mountain disaster and had a significant impact.As time goes on,the emergence of new technology applications and distributed deployment products will also become imminent.Based on the maturity and accumulation of the above technologies and the current industry application of mountain safety monitoring and the status quo of resources in our country today,this paper presents a design and application of cost-effective sensor network based on Lo Ra technology.Through the communication bridge deployment by Lo Ra technology and the technical features and advantages of low power consumption processor,low power consumption sensor and high speed parallel FPGA,a sensor network technology scheme with high availability,low maintenance cost and distributed is constructed.The design involves a large number of engineering ideas and new technical standards,in combination with Lo Ra technology,MEMS sensors,big data,distributed access,parallel computing,cloud computing and other technical experience,to achieve a set of characteristics in line with the times and have a high degree of security,Highly reliable,scalable,deployment is simple,low cost several major features of the mountain sensor network system.Finally,the design of the laboratory environment and the actual environmental testing,the completion of the pre-design indicators,and draw all the technical copy of this article,records and products.