The Research And Development Of The Frequency Hopping Communication System With Bluetooth Kernel And RS Code

With the widespread use of wireless networks such as Bluetooth,wifi,ZigBee,and Hmoe RF in electronic products such as drone aircrafts and smart homes,the mutual interference between wireless network signals has intensified,resulting in data loss and mutual control of equipment..Frequency hopping technology can effectively reduce the mutual interference between wireless networks by increasing the frequency of hopping and setting a wider bandwidth,thus becoming a key technology for solving problems such as interference and information security.Bluetooth frequency hopping is widely used in remote control systems due to its mature frequency hopping scheme and high speed transmission characteristics.However,in some low-cost remote control systems,some 2.4G and 5.8G wireless communication modules with a simple frequency hopping algorithm are usually used,and the interference suppression capability is weak.Although the Bluetooth kernel algorithm has excellent pseudo-random sequence characteristics,the Bluetooth kernel algorithm cannot be ported to some devices due to the Bluetooth data frame format and the differences between some data interaction methods and these modules.In view of the above problems,this paper adapts the frequency hopping algorithm to make the remote control equipment have reliable frequency hopping characteristics.This paper mainly simulates and analyzes the bluetooth kernel and RS frequency hopping algorithm,and then develops the uav/unmanned vehicle remote control.The specific work is as follows:(1)In this paper,The characteristics of bluetooth frequency hopping and RS hopping sequence are analyzed,and matlab is used to verify the mean and hamming correlation of frequency-hopping sequence..(2)Design a frequency-hopping algorithm suitable for low cost scenarios.We combine bluetooth kernel,using RS frequency hopping sequence,fusion frequency hopping algorithm design construction,research and analysis the performance of frequency hopping,improve in all respects,observation frequency distribution,and the original of RS code generated by the frequency distribution of better,than the average frequency hopping algorithm has more reliability and later development will use this kind of fusion algorithm.(3)Based on remote control project requirements,BK5933 5.8G RF module platform,based on the bluetooth kernel and RS code fusion frequency hopping algorithm,des igned 18 channel remote control of frequency hopping communication system,the system has a control data transmission,independent of yards,one-to-many communication,the function such as packet loss reconnection,the test results show that the system in complicated wireless environment can restrain the interference effectively,realize the reliable communication.(4)We used the fusion algorithm of frequency hopping is developed based on STM32F103 and n RF24L01 design remote unmanned vehicle test platform,realizes the remote data acquisition,data transmission and independent on the size,packet loss reconnection,output,control information,drive motor,and other functions,through testing in different environment,to achieve the effect of anti-interference,and achieve the purpose of different platforms for fusion frequency hopping algorithm..