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Watch: Unmanned Systems Source Presentation at Arizona UAS 2016

In this video, Andrew Osbrink gives a presentation on the business of Unmanned Systems Source, the customers we support, and where the future of the UAV market is heading. Recorded September 2016 at the Arizona UAS conference in Phoenix Arizona.

Aerial Mapping Via Drone

aerial_mapping The surveying and mapping industry has used photogrammetry and LiDAR (Light Detection and Ranging) for many years, Questions over which is best have gone on for just as long. Choosing between photogrammetry and LiDAR is not a case of which offers superior technology but, rather, which is better suited for the surveying purposes required. Professionals working in the sector understand that both have their benefits. Photogrammetry uses pictures to take measurements whereas LiDAR uses lasers and light to do the same. For mapping and surveying bare earth regions, photogrammetry is a great choice. But for areas with heavy vegetation or other obstructions in the way of the site being surveyed, LiDAR provides the best fit.

Drone technology takes flight

Drone technology has made a huge impact on aerial mapping and surveying. Drones offer many advantages including the ability to capture photos at predefined elevations and at a predetermined overlap percentage. In the past, conventional aerial LiDAR providers turned down surveying projects on areas under 5 square kilometers because it simply wasn't cost effective. Today, drones mounted with LiDAR systems, can map these same areas quickly, affordably and with far less logistical issues. In turn, while drone mounted LiDAR systems achieve great results, their cost and using them over larger areas may not be currently feasible. UAV LiDAR systems also offer image control and perspectives unique from traditional capture methods. Drone operators too have the flexibility to configure the vehicles to gather large volumes of data and capture images that are perfect for what the application requires. The affordability of drones also means that aerial surveying and mapping has attracted more people to the industry. This translates into varying skill and experience levels which inevitably brings about mixed surveying results. In the same way, organizations that rely on surveying data have also decided on an in-house approach.

Acquiring Accurate Imagery

Regardless of whether a surveyor chooses photogrammetry or LiDAR, the ultimate goal is to acquire accurate imagery. Surveyors begin by determining the level of accuracy they require, which drives the decision between LiDAR and photogrammetry. Generally, LiDAR achieves more accurate results but is limited when it comes to obtaining high resolution images through the technology's data. Often, individual use traditional photogrammetry methods to augment the LiDAR data. Surveyors often choose what they are more familiar with, as well as what is more affordable. While there is nothing wrong with such an approach, it is important to keep in mind that the requirements of each project will vary, as will their cost. The use of  UAV LiDAR or photogrammetry alone may work for one project while other missions may require the use of both technologies to achieve the desired imagery. Some surveyors forego LiDAR and photogrammetry entirely, choosing instead photo-based solutions. Though initial costs may be more affordable, redoing everything means expenses can mount quickly.

Varied  Capabilities and Cost

Currently, LiDAR is not as readily available in mainstream technology but options continue to increase.  Still with the right drone and a camera of reasonable quality, surveyors can achieve workable measurements. If a project's requirements are accurately followed, photogrammetry produces accurate 3D models. Its low cost also means it's the most common choice for surveying. Today, even inexperienced operators can capture images to create a 3D demo. However, the quality of the work determines the quality of the data.

Research and due Diligence

When considering LiDAR or photogrammetry, it is important to remember that the choice is not about which is better. Both offer advantages and disadvantages. Limitations presented by technology capabilities, terrain, as well as the size of the area all come into play. Given the choice most surveyors would happily choose both technologies to utilize as they see fit. Those interested in surveying via drone should learn as much as they can about both technologies to determine which works best for their situation.

Fixed Wing or Multi-Rotor?

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Should I buy a fixed-wing or a multi-rotor for my application?

At Unmanned Systems Source, we receive calls on a daily basis from customers who ask this very question. We always follow up with a question of our own, “I’m not sure, it depends. What’s your application?”. And so begins a conversation. Choosing between a multi-rotor or a fixed-wing is not always a straight forward choice. In fact, there are a number of factors that should be considered before making a selection. Common questions we ask interested buyers, include: What are the project objectives? How much area needs to be covered? What sort of flight duration is required? Are you collecting data? What is your payload? What is your experience level? And, finally, what is your budget? Once we understand the client’s needs and the operational environment, the choice comes into focus.

Fixed Wing Considerations 7200_c

Fixed-wings are generally better suited for rural environments and are work horses for many commercial and scientific applications. Though they may not offer the maneuverability of a multi-rotor, when it comes to flight times and coverage, fixed wings excel. Other advantages include:
  • Capability of operating at higher altitudes
  • Faster flight speeds
  • Power and capacity to carry heavier and, in some cases, multiple payloads – which in turn means the ability to gather more sophisticated data
  • Option to choose from a wider variety of sensors
  • Extended flight times, 60 minutes +
  • Larger coverage
In regards to the operational area required, it depends on the vehicle. Fixed wings need more space for takeoffs and landings. While hand-launched models deploy quickly, others require a launching rail. The initial costs to purchase a fixed-wing systems are higher but these systems are fairly inexpensive to maintain due to their simpler design. And there is usually less operational “down-time” for fixed-wings.  

M600-1-300x251@2x (1)Multi-rotor Considerations

The use of multi-rotors has exploded in recent years in large part due to their affordability and ease of use. But multi-rotor advantages certainly extend beyond these two points. Other advantages include:
  • Highly maneuverable in flight which is great for urban and tightly confined areas
  • Ability to hover – which make it an excellent choice for inspections of infrastructure that require close-up examination
  • Easy to operate and deploys quickly
  • Small takeoff and landing footprint
  • Affordable price-point
In flight, multi-rotors are incredibly maneuverable and can hover which make them the preferred choice for detailed inspection work and urban areas where space limitations are at a premium. They are also the obvious choice for video and photography work. Though multi-rotors provide only limited flight duration (15-20 minutes on average), their operational flexibility makes it a favored choice for many urban applications. Ultimately, the choice between a multi-rotor or fixed-wing for a specific application depends on a variety of factors. Understanding the strengths and limitations of each vehicle goes a long way in helping inform your decision.

Click here for the Fixed Wing or Multirotor Infographic!

Unmanned Systems to the Rescue

Disasters_TUnmanned advancements help first responder's efforts When disaster strikes we look to the men and women in emergency services to render aid to those affected. Thanks to advances in technology, first responders now have unmanned systems to help in those efforts. Currently, unmanned helpers include Unmanned Aerial Vehicles and robots equipped with sensors, cameras, and even microphones.  

Unmanned Systems impact on an industry

The impact of unmanned technologies in emergency and disaster situations continues to grow. Drones offer numerous advantages including: rapid deployment, the ability to assess dangerous environments from a safe distance, minimize risk to workers, and more. Operators can change drone equipment to adjust to changes in the environment. A night-vision camera can be quickly exchanged for an infrared camera to read heat signatures of survivors. Programmable flight paths ensure complete coverage of an area. All these advantages can significantly impact the number of lives saved in the event of a disaster.  

Extending relief workers’ reach

UAVs are particularly helpful in reaching areas that are inaccessible. Drones equipped with high resolution imagers can provide pictures, stream live video and create before and after snap shots of the affected site. Emergency workers can use this information to determine a plan of action – where to deploy, areas to avoid, identify survivors, and more. What's more, drones can re-deploy to get the most accurate data in what is usually a very active and changing situation. Officials can use the data to continuously adjust and respond accordingly. First responders aren’t the only ones who benefit from drone use in emergency situations. Drone manufacturers can use feedback from operators in the field to improve the overall performance of the product, thus improving capabilities for future relief efforts.  

The challenge of the amateur operator

Unfortunately, the growing use of drones also has a downside. As more enthusiasts take to the skies, they can pose a risk to active emergency situations. Many well-intended users believe they are providing assistance when, in fact, their efforts can hamper and even derail relief efforts. Such situations require formal training, expertise and collaboration with disaster and emergency relief officials. Operators functioning on their own volition are a risk to personnel on the ground. Rescue organizations continue to advise drone enthusiasts, not officially involved in efforts, to restrain themselves and stay away from active emergency situations.  

A growing array of unmanned systems

Rescue personnel can choose from an ever increasing array of unmanned systems. For example, RoboSimian is a highly dexterous robot that can access areas deemed too risky for humans. This robot can scan, assess as well as manipulate its environment. Currently, RoboSimian can close a valve, pick up an object and remove impediments. Certain situations require even more sophisticated technology – such as detecting movement under piles of debris. Developed by NASA’s Jet Propulsion Laboratory, FINDER (Finding Individuals for Disaster and Emergency Response) utilizes low power radar to detect imperceptible movements beneath rubble. FINDER’s radar emits a low power radio signal that bounces off debris and changes if movement is detected. As with robots and UAVs, FINDER is an important tool that enables rescuers to locate those in need and provide assistance quickly and efficiently.  

A bright future

Given the advantages unmanned systems offer, emergency and disaster relief agencies will continue to adopt this technology. For the agencies involved in planning and executing search and rescue operations, the deployment of UAVs, robots and additional technology is a positive development.

Latitude’s HQ-40 Receives Experimental Certification

Latitude_FAAPLAYAS, NEW MEXICO – June 02, 2016 – Latitude Engineering and BNSF Railway’s UAS Program, along with BNSF aviation consultants Padina Group and Bihrle Applied Research acquired FAA Experimental certification for two HQ-40 aircraft used in BNSF’s Pathfinder program (beyond line of sight UAS integration into the national airspace). The 10 month effort culminated at the Playas New Mexico airfield, where the HQ-40 aircraft were inspected and a successful flight demonstration was performed. Latitude’s HQ-40 aircraft are one of the first to be certified under the recent Pathfinder Programs. Congratulations to our friends at Latitude Engineering!

Pluto N1 low-cost AHRS sensor is now available

PlutoN1Tucson, AZ – June 15, 2016 – Unmanned Systems Source is pleased to announce a new distribution partnership with AheadX, manufacturer of the Pluto N1 sensor. Pluto N1 is an ultra-compact, low-cost Attitude and Heading Reference System (AHRS). It offers a 2D navigation solution for UGS and a 3D navigation solution for UAV and UUV applications. Plus, it can combine GPS/GLONASS to become GNSS/INS.
“We are thrilled to offer the Pluto N1 manufactured by AheadX,” said Andrew Osbrink, Solutions Engineer for Unmanned Systems Source. “The Pluto N1 offers functionality comparable to other name-brand systems on the market but at a fraction of the cost. This sensor will provide cost-conscious users the ability to implement a very capable AHRS IMU system.”
Pluto N1 has an output rate that reaches 200Hz maximally. It integrates triaxial gyro, triaxial accelerometer, triaxial magnetic meter as well as barometric altimeter and thermometer. In addition to AHRS data, this sensor also provides data of barometric height and rising or falling speed. Learn more about the Pluto N1 sensor, visit Unmanned Systems Source today.

About Unmanned Systems Source

Headquartered in Tucson, Arizona, Unmanned Systems Source is an e-commerce warehouse with the fastest growing selection of unmanned components, parts and remote sensing systems available today. It is a single source of supply and information; it serves commercial, governmental and public sectors.