Design of Regional UAV Aviation Emergency Surveying and Mapping System Based on Tilt Measurement Technology
It is an urgent issue that needs to be addressed for the accurately obtaining,processing,and transmitting the actual da-ta of the disaster areas in emergency surveying and mapping.In order to improve the regional drone aviation emergency surveying and mapping precision,a regional drone aviation emergency surveying and mapping system is designed using the tilt measurement technol-ogy from both hardware and software aspects.The sensors,drivers,and aviation controllers of the system is designed to ensure that the drones can fly according to the designated routes,the tilt camera components are installed to provide the hardware support for the tilt measurement technology,the drone aviation engines are adjusted to ensure the flight power,and perform the special handling of hardware equipment according to emergency situations.The navigation trajectory of the drone is planned within the surveying and mapping area,and the tilt measurement technology is used to obtain the regional image data.The initial image is preprocessed through two steps of the uniform light and color,and distortion correction.The geometric data of regional entity is calculated,and the emer-gency mapping results of the system are obtained through the mapping and annotation.The testing results show that the designed sys-tem has a larger surveying range,the surveying errors of the main area and position are approximately 0.7 km2 and 1.2 km2,respec-tively,which can effectively improve the regional unmanned aerial vehicle aviation emergency surveying and mapping precision.
tilt measurement technologyregional surveying and mappingUAVaerial photographyemergency surveying and mapping system