Tag Archives: autopilot

High altitude glider aims for the stratosphere

The Centurion House4Hack crew is building a High Altitude Glider and accompanying launch balloon which are slated to be catapulted 40km into the stratosphere on June 14th.

According to Adam Oxford of HTXT.Africa, the X-UAV Mini Talon V-tail will carry an on-board camera, an Atmel-based Arduino board to control the autopilot and an array of weather sensors.

“It’ll be floated up on helium balloons, and will deploy a parachute to control its descent via remote control,” Oxford explained.

“[Centurion House4Hack] partnered with local weather balloon specialists HABEX to put together the equipment needed. As far as we know, however, no-one in South Africa has managed to successfully land a glider launched from that kind of altitude before.”

Project participant Gert van den Berg told HTXT that the team already owned much of the required equipment, with the rest sponsored by local hobby shop High Flyer.

“We’re hoping to get [and stream] some spectacular video,” said van den Berg.

“From at least 20km up. Ideally, we want a controlled landing at a known location too.”

It should be noted that the Centurion House4Hack crew has already begun testing various components at temperatures of -75 Celsius, using dry ice from a local ice cream supplier.

Interested in learning more? You can check out the project’s official page here.

The future of embedded automotive technology

Rob Valiton, senior VP and general manager, Automotive, Aerospace and Memory Business Units, Atmel Corporation, recently participated in an EE Catalog panel discussion about the future of embedded automotive technology.

According to Valiton, there is a wide variety of of technology that will continue to find its way into in-vehicle infotainment (IVI) systems – with capacitive touchscreens projected to be one of the fastest-growing spaces.

“The current dominant touchscreen technology in automotive is resistive. However, resistive technology does not allow consumers to interact with their car the way they interact with their smartphone, tablet and Ultrabook. The superior user interface, including common gesture recognition utilizing pinch/zoom and swiping motions is enabled by the adoption of capacitive technology,” he explained.

“Some newer features such as hover and proximity may also have the potential to create a less-distracted user environment than what exists today. Hover and proximity can be used in combination to ensure that the drivers’ eyes stay on the road for as long as possible and changing basic setting does not require several menu changes.”

In addition, Valiton noted that there are a number of standards which should be (further) unified to accelerate the IVI experience between on-board systems and connectable consumer products, with standards ranging from security and software considerations, to technology such as Bluetooth and Wi-Fi.

“Standards identified by technology standards bodies, such as the Bluetooth SIG or Wi-Fi Alliance, are required in order to unify the IVI experience on-board, specifically in relation to consumer products. These are required to ensure a smooth and seamless connection, as well as a positive experience for the end user,” he said.

“Firmware specifications are identified within a car to ensure connectivity is established flawlessly. [Plus], continued development of standards such as those being developed by the Connected Car Consortium will ensure that drivers can continue to control their devices using existing in-vehicle equipment. Of course, software considerations are also important. Since the infotainment lifecycle of an automobile is typically much longer than in the home, future cars must consider software standards along with the ability to upgrade.”

Valiton also pointed out that there are a number of technologies required to connect a car to the roadway and municipal infrastructure, along with vehicle-to-vehicle communications.

“[Such technology] requires a microcontroller (MCU), numerous sensors, a connectivity solution which can range from Wi-Fi such as 802.11p, GPS and 3G or 4G networks and security. The combination allows cars to connect to roadway and municipal infrastructures such as Fastrak, toll payment or Onstar security systems—all of which are connected to terrestrial and/or wireless connectivity,” he said.

“Clearly, security in automobiles is very important. Remember, we are all used to having virus protection readily available on our PCs, but are unlikely to think that much about how secure our software is in the modern automobile. Until now, the software has been part of a closed system and not subject to hacking. With the new V2V and V2X systems, we will need technology to ensure secure firmware updates and prevent hackers from communicating with unsuspecting drivers and their vehicles.”

Last, but certainly not least, Valiton commented on the future of self-driving cars, citing a recent ORC International survey that claimed only 18 percent of consumers would consider buying a self-driving car.

“Despite this survey, we believe consumers do not have a full understanding of self-driving cars. There are a number of technologies today that are baby steps towards a self-driving car (think automatic braking),” he explained. “One example is the safe park, where the vehicle parks itself. Another example is autopilot, a system used to guide a vehicle without assistance from a person, developed in 1912. Autopilots are used in aircraft, boats (known as self-steering gear), spacecraft, missiles and other vehicles.”

Similarly, an aircraft autopilot still requires human intervention—a pilot and a co-pilot—to ensure that if anything is amiss, they can be sure to steer the plane to safety.

“With self-driving cars, drivers will have the option to set the car in drive and not worry about a long trip or traffic. Similar to cruise control, the self-driving car can be turned off or if there is an emergency, the driver can still have full control of the car,” he added.

The car-to-x system warns of road works, congestion, obstacles and dangerous weather (courtesy Daimler).

“However, with strict automotive standards currently in place, to make this idea a reality, hardware and software must work closely together to achieve a safe and reliable self-driving car and one that is not hackable. Embedded technologies such as microcontrollers, sensors and touch solutions, encryption and even technologies such as 3D scanning are already in place to enable an autonomous vehicle. We are ready for self-driving cars; the real question is whether both manufacturers and drivers are ready to embrace it.”

Interested in learning more about Atmel’s comprehensive automotive lineup? You can check out our full automotive portfolio here.

This sailboat autopilot has Atmel-Arduino under the hood

Recently, Bits & Pieces covered a story about a Maker by the name of Louis who designed an innovative kayak autopilot built around an Atmel-powered Arduino.

Today, we are going to be taking a closer look at an Arduino-based autopilot fitted into a large sailboat that is capable of keeping the vessel on a constant heading. According to the HackADay crew, Mike Holden uses a very cool digital compass equipped with LEDs to keep a steady course.

“Also included is an amazingly professional and very expensive 6 axis IMU. To actually steer the ship, Mike is using a linear actuator attached to the tiller powered by a huge 60 Amp motor controller,” explained HackADay’s Brian Benchoff.

“For control, [Mike] ended up using an [Atmel-powered] Arduino, 16-button keypad, and an LCD display. With this, he can put his autopilot into idle, calibration, and run modes, as well as changing the ship’s heading by 1, 10, and 100 degrees port or starboard. It’s able to keep a constant heading going downwind, and even has enough smarts to tack upwind.”

Interested in learning more about the Atmel-Arduino autopilot for sailboats? You can check out Mike Holden’s official project page here.