Multi-axis vehicles are aerial vehicles consisting of three, four, six, eight or more axes. Since controlling the apparatus is very simple, and the price has become more affordable, it has been widely used in aerial photography. The multi-axis vehicle is an extended development of an unmanned aerial vehicle which was expensive and used mostly in reconnaissance or bombing and other military purposes. With the increasing progress of flight control technology, satellite positioning, wireless video transmission and remote control technology, the wireless multi-axis remote piloted vehicle (RPV) has gradually become consumer goods. Prices vary from a few thousand for universal models to several hundred thousand dollars for professional models. There are miscellaneous products with any type you need.
Since the groundbreaking of TIAA MRT Project in 2006, BOHSR has annually sent colleagues aboard manned helicopters to execute the aerial photography mission to record engineering situation and landscape changes during construction period. Since the rental price of a manned helicopter is very expensive, additionally, it is susceptible to the impact of weather and air traffic restrictions and cannot be too close to the recorded subject, so in principle, the mission is to be performed only once a year. To overcome the limitations of a manned helicopter, BOHSR adopted multi-axis RPV for the first time in 2014 to film the TIAA MRT construction. Since the implementation, the outcomes are very fruitful. The reasons are outlined as follows:
1.Breakthrough for commanding height restrictions: the biggest obstacle for traditional camera is the commanding height restrictions. Due to capabilities of vertical takeoff and landing (VTOL) and reaching altitude and distance of about 1,000 meters, the multi-axis RPV can arrive at any height and position without any restrictions when executing photographing tasks.
2.A high stability cradle head: traditional cameras rely on hand or tripod to stable the camera body during shooting, while multi-axis RPV is highly dependent on the stability of the cradle head. The cradle head is controlled by the computer and gyroscopes and can completely absorb vibration of the RPV during shock and rocking caused by crosswind to capture excellent photos or videos.
3.Less susceptible to weather and air traffic control: as the flight costs for multi-axis RPV are not high and limitations for weather or visibility are relatively low, as long as a task is required, unless it is raining, the RPV should generally be able to perform tasks at any time and should be unrestricted to air traffic control.
- Dji phantom 3 professional 空拍機。