Development Of An Unmanned Airborne Gravity System

Among the surveyed quantities of aerial objects,aerial gravity measurement plays an important role in geological and geomorphological surveys,oil and gas resource exploration,and solid mineral resource exploration.In order to improve the intelligence level of the aviation gravity measurement system,it is necessary to implement unmanned monitoring of the aviation gravity system.In the field production,the navigation operator needs to operate the aviation gravity system on the plane,because in the field production,the geological conditions are complex and diverse,the work scope is wide,and the personal safety of the flight operators is hidden.In response to the above situation,this subject has designed an aviation gravity unmanned system.Pilots can obtain real-time status information of the aviation gravity system based on the warning signal of the system.When the aviation gravity system fails,the aircraft will return to avoid invalid measurements.Through in-depth analysis of the requirements of the aviation gravity system,the embedded technology,serial communication technology,data encryption and decryption technology,fault detection technology,and wireless transmission technology are applied to the research of the aviation gravity unmanned system.The system software and hardware design adopts systematic,hierarchical and modular design guidelines,integrates key technical elements such as data information collection,transmission,and processing,and builds an aviation gravity unmanned system host with STM32 as the core,based on Qt Unattended monitoring system software.The system uses the RS422 serial bus to collect the data of the aviation gravity measurement system,compares the collected data with the set attribute range value,analyzes and performs fault judgment,automatically generates an early warning signal when the threshold value range is exceeded and an interruption fault occurs,and uses LED lights Displayed form output.When the host of the unattended system is running,the collected data is encrypted by the AES algorithm,and the 4G wireless Io T module is used when the aircraft is in standby to transmit to the remote monitoring host computer software for AES decryption.The decrypted data will be displayed in different forms.For monitoring by resident staff.The unattended host computer and the upper computer monitoring software work together to form a small Internet of Things system.