Design And Verification Of A UAV Group Measurement And Control Protocol Software

With the development of UAV technology and industry,UAV has been widely used in various fields.Especially in the military area,UAV can replace the pilot very well and carry out the task of boring,high risk,bad environment and deep into the local.In aerospace,aerospace measurement and control,UAV has also been widely used.With the evolution of UAV measurement and control business from single station to multi station and multi machine networking mode,the traditional point-to-point measurement and control data transmission mode can not meet the needs.To solve this problem,this paper designs and implements the protocol software of airborne terminal and ground terminal respectively.The main work is as follows:First,analyze the current mainstream UAV Communication control technology,study the applicability of its mainstream communication control technology in the UAV group communication,and give the control technology suitable for the UAV group communication network.Second,In the design of UAV group measurement and control protocol software,firstly,it analyzes the difficulties in combination with the functional requirements of the software,gives the design ideas of multithreading,reducing interruption and semaphore,zero copy and hardware high-precision timer for each difficulty,and then designs the software architecture and interface of UAV group measurement and control protocol,in which the interaction number of each module in MAC layer is through the ring buffer queue According to the data transmission between MAC layer and physical layer through high-speed serial interface RapidIO,UAV group measurement and control protocol software includes MUX module,wireless resource management module,operation and maintenance module,random access module,data processing center module and data adaptation module,which are respectively used to realize multiplexing / demultiplexing,resource scheduling,initial configuration and random access.Finally,each module is further Line specific design.Thirdly,the software of UAV group measurement and control protocol is implemented in Linux system based on PowerPC hardware platform,and its function is tested.Including the function test of random access and resource allocation algorithm.The test results show that the basic functions of each module of UAV group work normally.In this paper,combined with LTE related technology,the protocol software implementation scheme of UAV group measurement and control is proposed.