Australian UAV maintains a stringent Safety Management System. As a company we will not undertake any operations that place our staff, the community of clients at risk. As a policy we operate with designated take-off and landing areas with appropriate warning signage. Our aircraft will not be placed in a position that they can cause injury to others, this includes flying rotor aircraft over people. Our UAVs are not toys and, should an accident occur, can cause serious injury or death. If an assignment cannot be undertaken safely then we reserve the right to postpone the flight to a time that it is safe to do so.
Our staff have the highest regard to safe operation and have undertaken the training to ensure all risks are minimised.
Yes, a UAV is not permitted to fly above 400ft and cannot fly in controlled airspace without prior approval.
The eBee UAV is small enough to be packed into carry-on luggage. Once at the survey site the flight plan is programmed into the eMotion software. The flight plan takes into account proposed flight height, output resolution, obstacles, topography, wind conditions and site layout.
Where required for accurate photogrammetry survey control points are established throughout the survey area, these enable the outputs to be referenced to visible points on the ground.
The flight is fully automated. When the eBee is launched it follows the pre-programmed flight path capturing photos at set intervals. Travelling at speeds of up to 50km/h the eBee has a flight time of approximately 40 minutes. On return to the launch site (or other if specified) the photos are downloaded and the aircraft relaunched to continue capture.
The photos are then processed in Pix4D software to form a single ortho rectified image and terrain model, if required.
Near infrared (NIR) photography is primarily used in the management of vegetation. The type and health of vegetation influences the colour scale in the image. Through analysis of the image data may be derived as to whether the vegetation is healthy, stressed or whether there are weeds present. This form of image analysis is particularly useful in the best practice management of crops. With accurate geo-referenced images land managers are able to pinpoint areas that may require additional fertilizer or irrigation to augment crop yield.
The use of near infrared imagery is gaining momentum in larger farms where it is economical to deploy aircraft. The use of UAVs to capture the images brings the technology to within reach of small to medium farm operations.
There are many research papers on the use of NIR, some of which are on the “useful links” page of this website.
This is dependent on the topography, resolution requirements and wind. If conditions and site are perfect a 3.5cm resolution aerial run can achieve approximately 150ha in a day. Post processing takes additional time in the office.
Photos and photogrammetry can be supplied in most GIS and CAD formats, contact AUAV for project requirements.
Videos and photos from the Octocopter are HD image and video files.
Australian UAV takes the issue of privacy very seriously. The realestate photography in particular is sensitive in that the octocopter does fly over adjoining properties to gain the required photographic angles. Australian UAV undertakes a range of mitigation activities to reduce privacy concerns. Prior to undertaking a realestate deployment adjoining residents in neighbouring properties are advised of the activities. In addition, any photo that contains a recognisable person will not supplied to the client and is deleted. For more information of privacy please contact AUAV.
Weather is limiting factor. Both wind and rain affect the ability of a UAV to operate to the highest standard. Ideal conditions are still and with high cloud but, depending on the use, both fixed wing and octocopter can be deployed in less than ideal conditions. A risk assessment is undertaken on each deployment to ensure that risk of damage to the public, property and equipment is minimised.
The combination of a 24 megapixel camera and the ability to fly very close to the subject enables the production of very high resolution photos. This is especially useful for the assessment of infrastructure. Typical file size for an aerial video is 800Mb per 15 minutes of video.
This answer is from www .photogrammetry.com
Photogrammetry is the science of making measurements from photographs.
The output of photogrammetry is typically a map, drawing, measurement, or a 3D model of some real-world object or scene. Many of the maps we use today are created with photogrammetry and photographs taken from aircraft.
Types of Photogrammetry
Photogrammetry can be classified a number of ways but one standard method is to split the field based on camera location during photography. On this basis we have Aerial Photogrammetry, and Close-Range Photogrammetry.
In Aerial Photogrammetry the camera is mounted in an aircraft and is usually pointed vertically towards the ground. Multiple overlapping photos of the ground are taken as the aircraft flies along a flight path. These photos are processed in a stereo-plotter (an instrument that lets an operator see two photos at once in a stereo view). These photos are also used in automated processing for Digital Elevation Model (DEM) creation.
What is the vertical accuracy of the photogrammetry?
Without ground control points the vertical accuracy of photogrammetry is poor. This may not be important if the data is to be used in relative terms (no datum required). However, with surveyed in ground control prior to the images being captured the vertical accuracy can be as good at 5cm, comparable to other aerial based survey techniques.
What resolution is are the vertical captured photos?
The resolution of the photos depends on a range of factors, principally the height at which the photo was taken. Low flights can have a pixel resolution of 2.5cm, flight height may sometimes be restricted however by topography and obstacles.