Submitted by brad on Tue, 2010-09-28 10:56.
An Italian team has built a prototype robot they call Dustbot which is aimed (in a backwards way) at the deliverbot vision.
The goal of the dustbot is to travel on demand to houses through the narrow, pedestrian streets of European cities so people can give the robot their trash, which it then takes back to the dump and drops there. It does not automate the pickup of the trash — you have to be there and put your bag into it, though it is able to drop it on it own. It is not clear if they plan to have it operate on streets with cars, or if it is truly ready to wander with civilians.
This is an evolutionary extension of the already common delivery robots used in factory floors and in hospitals. The hospital robots interact with the general public, and do it simply by being so slow that impact or injury is very unlikely, even with a programming error. But looking at the market of the very narrow, mostly or all-pedestrian ancient urban street, the challenge is more difficult than a hospital, but not as difficult as a vehicle that has to go fast enough that it could hurt somebody.
In tune with my predictions about deliverbots, the key is that the robot does not have to be in a hurry, so it can go as slow as is necessary to be safe. As the system improves, that speed gets faster and faster until it’s practical to go on urban streets at 15mph (ducking out of the way of cars) and eventually at the same speed as the cars. This robot can also be limited to a specific area in which it is well tested and armed with accurate data, because that’s much less of a restriction on delivery robots than it is on cars. (If you need to deliver elsewhere, use another service — but people will resist a taxi that will only take them certain places.)
Dustbot is probably too slow right now to be economical, particularly because you must wait for it. A robot that can pick up a standardized container is not too hard, however. One nice advantage of working on the trash problem is that there is no issue in leaving it on the street, so you don’t need to arrange home access for deliveries as a deliverbot would. There’s also little risk of piracy of the cargo, or damaging it.
There’s lots of video and photos on the site, here is a fluffy BBC video about the Dustbot. Note that this is about a year old — I just had not heard of it until recently.
Submitted by brad on Tue, 2010-09-21 10:14.
Here’s an idea that seems a bit wild and scary at first, but it’s doable today and has broad benefits: Small aircraft that don’t have landing gear, but instead land and take off from robotic “can’t miss” platforms pulled by cables on short airfields.
UPDATE: Some updated ideas and a link to a funded research project looking at similar ideas.
For every small aircraft purchaser, a big decision is whether to get retractable landing gear. They are very expensive, and create a risk of failure, but your plane will fly a lot faster and be more fuel efficient if you get them. What if we could leave the landing gear on the ground?
Imagine a wheeled platform on the runway with robotic control and a variety of systems to perfectly track an approaching aircraft. Pulled by cables, it can accelerate at several “g”s forward and back and left and right. As the aircraft approaches it tracks it and the cockpit display indicates positive lock. If the plane veers left, it veers left. If the plane speeds up it speeds up. Pretty much no matter what the pilot or winds do (other than missing the runway entirely) the plane can’t miss landing on it. It’s spring loaded so even if the landing is a bit hard the shock is cushioned. Done right, it’s just like having fancy shock absorbing landing gear. read more »
Submitted by brad on Sat, 2010-09-18 12:34.
This story from the Register about a test at the Stanford VAIL Lab reports an interesting result. They created a fake robocar, with a human driver hidden in the back. The test subjects then were told they could push the autopilot button and use the car. And they did, immediately picking up their newspapers to read as they would in a taxi (which is what they really were in.)
Not only that, when they were told the robot could not figure out the situation and needed human assist, they gave it, and then went right back to autopilot.
So trust of a robocar is already at a higher level than we might expect. I’ve ridden in Junior, and K. has stood in front of it, but that was with a human ready to take over the controls. Like many others pondering the future of robotic transportation, I believe we’ll only put robocars on our ordinary streets once they demonstrate a level of safety much superior to human drivers what I call the “robocar vision.” This does not mean a perfect level of safety, though, and the resulting accidents and occasional fatalities will be the cause of much debate and legal wrangling which will slow the development of the technology when it is saving lives.
Update: You might also like the Cute VW concept video where the dad explains to his son all the strange concepts like petrol, driving, traffic jams, accidents and parking.
Submitted by brad on Thu, 2010-09-16 12:20.
Just back from some time on the road, which always prompts me to think of ways to improve travel.
First, and most simply: Every hotel room comes with a small foldable stand on which to put your suitcase. The problem is they all come with exactly one of these. In some rooms there is space on the tables or dresser for another bag, but often there is not. Doing solo business travel I have just one bag, but all couples, and many solo wanderers have more than one, and so you end up putting bags on the floor. It’s quite annoying, since these stands can hardly be very expensive — folding cloth and metal chairs can be had for $10 in most stores. I’ve only tried once or twice to ask housekeeping for another, and been surprised to learn they don’t keep spares. Frankly, I think it would be cheaper to just put 2 in every room than waste staff time delivering extras, but either would work. And the hotel often knows if a room is booked for 2 rather than one in advance. If you have a bellman take up your bags, not only does the bellman see how many bags you have but it’s a sure thing you have several. Every bell station should have some extra racks and throw what is needed on the luggage cart.
Next, I think it would be interesting to see car rental companies develop cars just for road trips. They are the largest buyers of cars (and often owned by car companies) so custom cars are not out of the question. SUVs and some minivans contain many of the features of a road trip car, but they are often 3 times as expensive when reserved in advance, and 1.5x to 2x more expensive in gasoline usage. What features might a road trip car have? read more »
Submitted by brad on Tue, 2010-08-17 11:19.
Everybody knows about the Jet Blue attendant who flew off the handle when he got hit in the head by a bag and had fights with passengers over stored carry-ons. And we know airlines are starting to charge higher fees for checked bags (and even carry-ons) which netted them over $700 million last year. This pushes more people to want to use carry-on bags, which we already wanted to save time, and that means more waits at security and more waits getting on and off flights.
I admit to being a heavy user of carry-on bags. For one thing I usually have lots of camera equipment with me which is too fragile to check unless I have bulky foam cases. Which they then might lose, and which means getting to the airport around 20 to 30 minutes earlier and leaving it 15 minutes later with several more bags. (And perversely, paying more on some airlines.)
The system is getting stretched. I’ve often thought about one useful solution, which would be standardized carry-on bag racks with rails. The standard sized bags would quickly slick in and click-lock in place. No doors even (except for aesthetics) and no fussing with overhead bags, or rearranging. Perhaps some small unstructured place on top or between for coats and purses and laptop bags but mostly they would go under the seat, or in the seat pocket. (Currently they are not permitted in the seat pockets but these could be strengthened and given a closure so the computer can’t fly out in a crash.)
Add to this a system of official gate-check racks. These racks would be there at the gate or in the jetway. If need be they would be mounted in a special elevator or forklift so that they can be quickly and reasonably gently inserted and removed in the cargo hold. These racks would include some rails for standardized bags (especially on puddle-jumper planes which can’t have as many overhead rails) and some amorphous sections with strong cargo netting. They would have shock absorbers to reduce shocks when they are put on the plane or taken out. You would place your items in these racks yourself — in parallel with other passengers, in a wide space where doing so is not blocking others — and the goal would be that you could put semi-fragile items, including things like cameras and laptops into the racks with full confidence. To help with this, we could have a camera on the wing which feeds the seatback screens so that passengers could watch this module as it is loaded and unloaded. This would do a lot to ensure that it is treated with care in a way that checked luggage often is not. read more »
Submitted by brad on Wed, 2010-08-04 15:35.
Looking at new electric cars like the Nissan Leaf, we see that to keep costs down, cars with a range of 100 miles are on offer. For certain city cars, particularly in 2-car families, this should be just fine. In my particular situation, being just under 50 miles from San Francisco, this won’t work. It’s much too close to the edge, and trips there would require a full charge, and visits to other stops during the trip or finding parking with charging. Other people are resisting the electrics for lesser reasons, since if you ever do exceed the range it’s probably an 8 hour wait.
An alternative is a serial hybrid like the Chevy Volt. This has 40 miles range but a gasoline generator to provide the rest of the range and no “range anxiety.” Good, but more expensive and harder to maintain because electric cars are much simpler than gasoline cars.
Here’s an alternative: The electric car vendor should cut a deal with car rental services like ZipCar and Hertz. If you’re ever on a round trip where there is range anxiety, tell the car. It will use its computer and internal data connection to locate a suitable rental location that is along your route and has a car for you. It will make all appropriate reservations. Upon arrival, your electric car would transmit a signal to the rental car so that it flashes its lights to guide you and unlocks its doors for you. (The hourly car rental companies all have systems already where a transmitter unlocks the car for you.)
In many cases you would then pause, pull the rental out of its spot and put your electric in that spot. With more advanced robocar technologies, the rental would actually pull out of its spot for you. Zipcar has reserved spots for its vehicles and normally it makes no sense for the renter to have just pulled up in a car and need the spot, but it should work just fine. At Hertz or similar companies another open spot may be available.
Then off you go in your gasoline car. To make things as easy as possible, the negotiated contract should include refill of gasoline at a fair market price rather than the insane inflated price that car rental houses charge. Later come back and swap again. read more »
Submitted by brad on Tue, 2010-07-27 00:50.
Today marks the start of a remarkable robocar trek from Italy to China. The team from the Vislab International Autonomous Challenge start in Italy and will trek all the way to Shanghai in electric autonomous vehicles, crossing borders, handling rough terrain and going over roads for which there are no maps in areas where there is no high-accuracy GPS.
This would be impossible today so they are solving that problem by having a lead car which drives mostly autonomously, but sometimes has the humans take over, particularly in areas where there are no maps. This vehicle can be seen by the other vehicles and also transmits GPS waypoints to them, so they can follow those waypoints and use their sensors to fill in the rest. The other vehicles also will have humans to correct them in case of error, and the amount of correction needed will be recorded. Some of the earliest robocar experiments in Germany used this approach, driving the highways with occasional human correction. (The DARPA grand challenges required empty vehicles on a closed course, and no human intervention, except the kill switch, was allowed.)
This should be a tremendous challenge with much learned along the way about what works and what doesn’t. As a computer vision lab, these cars appear to want to use vision a lot more than other robocars, which have gone LIDAR all the way. (There are LIDARs on the Vislab cars, but not as fancy as the 64 line Velodyne.)
They are using electric cars to send a green message. While I do believe that the robocars of the future will indeed be electric, and that self-recharge is a cruicial element of the value of robocars, I am not as fond of this decision. “One thing at a time” is the philosophy that makes sense, so I think it’s better to start with proven and easy to refuel gasoline cars and get the autonomy working, then improve what’s underneath. But this is a minor quibble about an exciting project.
They have a live tracking tool (not up yet) and a blog you can follow.
More robocar news to come. Yesterday I had an interesting ride in Junior (Darpa Grand Challenge II winner) and we trusted it enough to have Kathryn stand in the crosswalk while Junior drove up to it, then stopped and waited for her to walk out of it.
Submitted by brad on Tue, 2010-06-15 21:27.
Last week, on my trip to Berlin, I managed to drop my passport. I don’t know where — it might have been in the bathroom of Brussels airport trying to change clothes in a tiny room after a long red-eye, or it might have been when Brussels Air made me gate check a bag requiring a big rearrangement of items, or somewhere else. But two days later, arriving at a Pension in Berlin I discovered it was missing, and a lot of calling around revealed nobody had turned it in.
In today’s document hungry world this can be a major calamity. I actually have a pretty pleasant story to report, though there were indeed lots of hassles. But it turned out I had prepared for this moment in a number of ways, and you may want to do the same.
The upshot was that I applied for a passport on Wednesday, got it on Thursday, flew on Friday and again on Monday and got my permanent
passport that same Monday — remarkable efficiency for a ministry with a reputation for long bureaucracy.
After concluding it was lost, I called the Canadian Embassy in Berlin. Once you declare the passport lost, it is immediately canceled, even if you find it again, so you want to be sure that it’s gone. The Embassy was just a couple of U-bahn stops away, so I ventured there. I keep all my documents in my computer, and the security guy was shocked I had brought it. He put all that gear in a locker, and even confiscated my phone — more on that later. read more »
Submitted by brad on Fri, 2010-06-04 09:19.
Since I’m on the road (Washington DC right now, then Berlin on Monday for a few days and then Toronto for the weekend of the 11th) I will lament on the problem I have noted before in travel power. We have to carry so many chargers. I have also found it’s a pain to take them all out and put them back in again.
So how about an electrified rollaboard travel bag. It would plug in, and of course you would have the right adapters for the countries you are going to. Then, along the bottom it would offer a power strip of sorts, with receptacles for your home plug form. The back of these units tends to have spare room due to the bars.
It would also feature an internal USB powering hub, with a few USB jacks, but also built in would be some retractable cables with micro-usb (the new power standard for phones and some other devices) or mini-usb if you still need that. (Alternately have one and adapters for the other.)
Next a universal battery charger. They sell these now with plates that adapt to the various camera batteries, and they even have plates for nimh AA batteries etc. Perhaps even 2 plates.
And of course a universal laptop power supply, but this needs a somewhat long cord. Now I know, you need a power supply to carry with the laptop to meetings, so do you want to carry two? Perhaps not, but I actually like to when space is not super tight. It’s possible this supply could be done in a way that it can snap out, and so all you carry is an extra wall cord. Since I like retractables however you might want another laptop cord and special tip for it.
The advantage: One thing to plug in and unplug when you go from room to room.
And the fact that the wheelies, because of their carry handle, tend to have some extra room to put stuff if it is built in.
The downside: Standards change and your wheelie could get obsolete. The x-ray people may take a bit of time to get used to it as well.
Submitted by brad on Thu, 2010-05-27 22:18.
I don’t often write about robots that don’t go on roads, but last night I stopped by Willow Garage, the robot startup created by my old friend Scott Hassan. Scott is investing in building open robotics platforms, and giving much of it out free to the world, because he thinks progress in robotics has been far too slow.
Last night they unveiled their beta PR2 robots and gave 11 of them to teams from 11 different schools and labs. Those institutions will be all trying to do something creative with the robots, just as a Berkeley team quickly made it able to fold towels a few months ago.
I must admit, as they marched out the 11 robots and had them do synchronous dance there was a moment (about 2 minutes 20 seconds in that video) when it reminded me of a scene from some techno thriller, where the evil overload unveils his new robots to an applauding crowd, and the robots then turn and kill all the humans. Fortunately this did not happen. The real world is very different, and these robots will do a lot of good. They have a lot of processing power, various nice sensors and 2 arms with 7 degrees of freedom. They run ROS, an open source robot operating system which now runs on many other robots.
I was interested because I have proposed that having an open simulator platform for robocars could also spur development from people without the budgets to build their own robocars (and crash them during testing.) A robocar test model is going to involve at least $150,000 today and will get damaged in development, and that’s beyond small developers. The PR2 beta models cost more than that, but Willow Garage’s donations will let these teams experiment in personal robotics.
Of course, it would be nice for robocars if there were an inexpensive robocar that teams could get and test. Right now though, everybody wants a sensor as nice as the $75,000 Velodyne LIDAR that powered most of the top competitors in the DARPA urban challenge, and you can’t get that cheaply yet — except perhaps in simulator.
Submitted by brad on Tue, 2010-05-18 15:37.
Last week, I attended a talk by Marc Raibert the former MIT Professor who founded Boston Dynamics, the makers of the BigDog 4-legged walking robot. If you haven’t seen the various videos of BigDog you should watch them immediately, as this is some of the most interesting work in robotics today.
Walking pack robots like BigDog have a number of obvious applications, but at present they are rather inefficient. BigDog is powered by a a 2 stroke compressor that drives hydraulics. That works well because the legs don’t need engines but can exert a lot of force. However, its efficiency is in the range of 2 gallons per mile, though this is just a prototype level. It is more efficient on flat terrain and pavement, but of course wheels are vastly more efficient there. As efficient as animals are, wheeled vehicles are better if you don’t make them heavy as tanks and SUVs.
BigDog walks autonomously but today is steered by a human, or in newer versions, can follow a human walking down a trail, walking where she walked. In the future they want to make an autonomous delivery robot that can be told to take supplies to troops in the field, or carry home a wounded soldier.
I wondered if BigDog isn’t trying too hard to be a mule, carrying all the weight up high. This makes it harder for it to do its job. If it could just tow a sledge (perhaps a container with a round teflon bottom with some low profile or retractable wheels) it might be able to haul more weight. Particularly because it could pay out line while negotiating something particularly tricky and then once stable again, reel in the line. This would not work if you had to go through boulders that might catch the trailer but for many forms of terrain it would be fine. Indeed, Boston Dynamics wants to see if this can work. On the other hand, they did not accept my suggestion that they put red dye in the hydraulic fluid so that it spurts red blood if damaged or shot.
The hydraulic design of BigDog made me wonder about applications to robocars. In particular, it seems as though it will be possible to build a light robocar that has legs folded up under the chassis. When the robocar got to the edge of the road, it could put down the legs and be able to climb stairs, go over curbs, and even go down dirt paths and rough terrain. At least a lightweight single person robocar or deliverbot might do this. read more »
Submitted by brad on Sat, 2010-05-15 14:14.
At the positive end of my prediction that robocars will enable people to travel in “the right vehicle for the trip” and given that most trips are short urban ones, it follows that most robocars, if we are efficient, will be small light vehicles meant for 1-2 people, with a lesser number of larger ones for 4-5 people. 2 person cars can even be face to face, allowing them to be under 5’ wide, though larger ones will be as wide as today’s cars, with some number as big as vans, RVs and buses.
Small, lightweight vehicles are not just greener than transit, they also require far less expensive road. While the initial attraction of robocars is that they can provide private, automated, efficient transportation without any new infrastructure, eventually we will begin building new development with robocars in mind. Various estimates I have seen for multi-use paths suitable for people, bikes and golf carts range around $100K to $200K per mile, though I have heard of projects which, thanks to the wonders of government contracting, soar up to $1M per mile. On the other hand, typical urban streets cost $2M to $3M per mile, an order of magnitude more.
Consider a residential robocar block. It might well be served by a single 10’ lightweight use lane. That lane might run along the backs of the houses — such back alley approaches are found in a number of cities, and people love them since the garage (if there is one) does not dominate the front of your home. It might also be in the front of the house. New construction could go either way. Existing areas might decide to reclaim their street into a block park or more land for the homeowners, with a robocar street, sidewalk and bike path where the road used to be.
We only need a single lane in one direction on most streets, though the desire to get 8’ wide vehicles in means there would be 2 lanes for the narrow vehicles. The lane would have no specific direction, rather it would be controlled by a local computer, which would tell incoming vehicles from which direction to enter the lane and command waiting vehicles to get out of the way. Small wider spots or other temporary holding spots would readily allow cars to pass through even if another vehicle is doing something.
You would not need a garage for your robocar as you can store it anywhere nearby that you can find space, or hire it out when you don’t need it. You might not even own any robocar, in which case you certainly don’t need a garage to store one. However, you probably will want a “delivery room,” which is something like a garage which has a driveway up to it. Deliverbots could use this room — they would be given the code to open the door — to drop off deliveries for you in a protected place. You could also have the “room of requirement” I describe in the deliverbots page.
This plan leaves out one important thing — heavy vehicles. We still need occasional heavy vehicles. They will deliver large and heavy items to our houses, ranging from hot tubs to grand pianos. But even heavier are the construction machines used in home construction and renovation, ranging from cranes to earth movers. How can they come in, when their weight would tear up a light-duty road?
The answer is, not surprisingly, in robotics. The heavy trucks, driven by robots, will be able to place their tires quiet precisely. We can engineer our robocar paths to include two heavy duty strips with deeper foundations and stronger asphalt, able to take the load.
Alternately, since the tires of the trucks will be further apart than our robocars, they might just run their tires on either side of a more narrow path, essentially on the shoulders of the path. These shoulders could be made not from heavy duty materials, but from cheap ones, like gravel or dirt. The trucks would move only very slowly on these residential blocks. If they did disturb things there, repair would be easy, and in fact it’s not too much of a stretch to predict either a road repair robot or a small road repair truck with a construction worker which moves in when problems are detected.
The volume of heavy trucks can be controlled, and their frequency. Their use can be avoided in most cases in times when the pavement is more fragile, such as when the ground is soaked or freezing. If they do damage the road, repair can be done swiftly — but in fact robocars can also be programmed to both go slowly in such alleys (as they already would) and avoid any potholes until the gravel robot fills them. Robocars will be laser scanning the road surface ahead of them at all times to avoid such things in other areas.
I keep coming up with dramatic savings that robocars offer, and the numbers, already in the trillions of dollars and gigatons of CO2 seem amazing, but this is another one. Urban “local roads” are 15% of all U.S. road mileage, and rural local roads are 54%. (There are just over 2.6 million paved road-miles in the USA.) To add to the value, road construction and asphalt are major greenhouse gas sources.
To extend this further, I speculate on what might happen if small robocars had legs, like BigDog.
Submitted by brad on Fri, 2010-05-14 23:59.
Last week, Volvo was demoing some new collision avoidance features in their S60. I’ve talked about the S60 before, as it surprised me putting pedestrian detection into a car before I expected it to happen. Unfortunately in an extreme case of demo disease known to all computer people, somebody has made an error with the battery, and in front of a crowd of press, the car smashed into the truck it was supposed to avoid. The wired article links to a video.
Poor Volvo, having this happen in front of all the press. Of course, their system is meant to be used in human driven cars, warning the driver and braking if the driver fails to act — not in a self-driving vehicle. And they say that had their been a driver there would have been an indication that the system was not operating.
While this mistake is the result of a lack of maturity in the technology, it is important to realize that as robocars are developed there will be crashes, and some of the crashes will hurt people and a few will quite probably kill people. It’s a mistake to assume this won’t happen, or not to plan for it. The public can be very harsh. Toyota’s problems with their car controllers (if that’s where the problems are — Toyota claims they are not — have been a subject of ridicule for what was (and probably still is) one of the world’s most respected brands. The public asks, if programmers can’t program simple parts of today’s cars, can they program one that does all the driving?
There are two answers to that. First of all, they can and do program computerized parts of today’s cars all the time and by and large have perfect safety records.
But secondly, no they can’t make a complete driving system perfectly safe, certainly not at first. It is a complex problem and we’ll wait a long time before the accident rate is zero. And while we wait, human drivers will kill millions.
Our modern society has always had a tough time with that trade-off. Of late we’ve been coming to demand perfect safety, though it is impossible. Few new products are allowed out if it is known that they will have any death rate due to their own flaws. Even if those flaws are not known in the specific, but are known to be highly likely to exist in some fashion. American juries, faced with minutes of a meeting where the company decided to “release the product, even though predictions show that bugs will kill X people” will punish the company nastily, even though the alternative was “don’t release and have human drivers kill 10X people.” The 9X who were saved will not be in the courtroom. This is one reason robocars may arise outside the USA first.
Of course, there might be cases the other way. A drunk who kills somebody when he could have taken a robocar might get a stiffer punishment. A corporation that had its employees drive when robotic systems were clearly superior might find a nasty judgement — but that would require that it was OK to have the cars on the road in the first place.
But however this plays out, developers must expect there will be bugs, an bugs with dire consequences. Nobody will want those bugs, and all the injuries will be tragic, but so is being too cautious on deployment. Can the USA figure a way to make that happen?
Submitted by brad on Mon, 2010-04-26 14:52.
This weekend I attended the annual “Robogames” competition, which took place here in the Bay Area. Robogames is mostly a robot battle competition, with a focus on heavily armed radio-controlled robots fighting in a protected arena. For several years robot fighting was big enough to rate some cable TV shows dedicated to it. The fighting is a lot of fun, but almost entirely devoid of automation — in fact efforts to use automation in battle robots have mostly been a failure.
The RC battles are fierce and violent, and today one of the weapons of choice is something heavy that spins at very high speed so that it builds up a lot of angular momentum and kinetic energy, to transfer into the enemy. People like to see robots flying through the air and losing parts to flying sparks. (I suspect this need to make robots very robust against attack makes putting sensors on the robots for automation difficult, as many weapons would quickly destroy a lot of popular sensors types.)
The games also featured a limited amount of automated robot competition. This included some lightweight (3lb and 1lb) automated battles which I did not get to watch, and some some hobby robot competitions for maze-running, line following, ribbon climbing and LEGO mindstorms. There was also semi-autonomous robot battle called “kung fu” where humanoid robots who take high level commands (like punch, and step) try to push one another over. There is also sumo, a game where robots must push the other robot out of the ring.
I had hoped the highlight would be the Robo-magellan contest. This is a hobbyist robot car competition, usually done with small robots 1 to 2 feet in length. Because it is hobbyists, and often students, the budgets are very small, and the contest is very simple. Robots must make it through a simple outdoor course to touch an orange cone about 100 yards away. They want to do this in the shortest time, but for extra points they can touch bonus cones along the way. Contestants are given GPS coordinates for the target cones. They get three tries. In this particular contest, to make it even easier, contestants were allowed to walk the course and create some extra GPS waypoints for their robots.
These extra waypoints should have made it possible to do the job with just a GPS and camera, but the hobbyists in this competition were mostly novices, and no robot reached the final cone. The winner got within 40 feet on their last run, but no performance was even remotely impressive. This was unlike past years, where I was told that 6 or more robots would reach the target and there would be real competition. This year’s poor showing was blamed on budgets, and the fact that old teams who had done well had moved on from the sport. Only 5 teams showed up.
The robots were poor for sensors. While all would have a GPS, in 1 or 2 cases the GPS systems failed and the robots quickly wandered into things. A few had sonar or touch-bars for obstacle detection, but others did not, and none of them did their obstacle detection well at all. For most, if they ran into something, that was it for that race. Some used a compass or accelerometers to help judge when to turn and where to aim, since a GPS is not very good as a compass. read more »
Submitted by brad on Sat, 2010-04-17 19:32.
I’ve been predicting a great deal of innovation in cars with the arrival of robocars and other automatic driving technologies. But there’s a lot of other computerization and new electronics that will be making its way into cars, and to make that happen, we need to make the car into a platform for innovation, rather than something bought as a walled garden from the car vendor.
In the old days, it was fairly common to get a car without a radio, and to buy the radio of your choice. This happened even in higher end cars. However, the advantages in sound quality and dash integration from a factory-installed radio started to win out, especially with horizontal market Japanese companies who were both good at cars and good at radios.
For real innovation, you want a platform, where aftermarket companies come in and compete. And you want early adopters to be able to replace what they buy whenever they get the whim. We replace our computers and phones far more frequently than our cars and the radios inside them.
To facilitate this, I think the car’s radio and “occupant computer” should be merged, but split into three parts:
- The speakers and power amplifier, which will probably last the life of the car, and be driven with some standard interface such as 7.1 digital audio over optical fiber.
- The “guts” which probably live in the trunk or somewhere else not space constrained, and connect to the other parts
- The “interface” which consists of the dashboard panel and screen, with controls, and any other controls and screens, all wired with a network to the guts.
Ideally the hookup between the interface and the guts is a standardized protocol. I think USB 3.0 can handle it and has the bandwidth to display screens on the dashboard, and on the back of the headrests for rear passenger video. Though if you want to imagine an HDTV for the passengers, its possible that we would add a video protocol (like HDMI) to the USB. But otherwise USB is general enough for everything else that will connect to the guts. USB’s main flaw is its master-slave approach, which means the guts needs to be both a master, for control of various things in the car, and a slave, for when you want to plug your laptop into the car and control elements in the car — and the radio itself.
Of course there should be USB jacks scattered around the car to plug in devices like phones and memory sticks and music players, as well as to power devices up on the dash, down in the armrests, in the trunk, under the hood, at the mirror and right behind the grille.
Finally there need to be some antenna wires. That’s harder to standardize but you can be we need antennas for AM/FM/TV, satellite radio, GPS, cellular bands, and various 802.11 protocols including the new 802.11p. In some cases, however, the right solution is just to run USB 3.0 to places an antenna might go, and then have a receiver or tranceiver with integrated antenna which mounts there. A more general solution is best.
This architecture lets us replace things with the newest and latest stuff, and lets us support new radio protocols which appear. It lets us replace the guts if we have to, and replace the interface panels, or customize them readily to particular cars. read more »
Submitted by brad on Thu, 2010-04-15 14:15.
I recently stayed at the home of a friend up in Vancouver. She had some electrical wiring problems, and since I know wiring, I helped her with them as well as some computer networking issues. Very kindly she said that made me a houseguest from heaven (as opposed to the houseguests from hell we have all heard about.) I was able to leave her place better than I found it. Well, mostly.
This immediately triggered a business idea in my mind which seems like it would be cool but is, alas, probably illegal. The idea would be a service where people with guestrooms, or even temporarily vacant homes, would provide free room (and board) to qualified tradespeople who want to have a cheap vacation. Electricians, handypeople, plumbers, computer wizards, housepainters, au pairs, gardeners and even housecleaners and organizers, would stay in your house, and leave it having done some reapirs or cleanup. In some cases, like cleanup, pool maintenance and yard sweeping, the people need not be skilled professionals, they could be just about anybody.
Obviously there would need to be a lot of logistics to work out. A reliable reputation system would be needed if you’re going to trust your house to such strangers, particularly if trusting the watching of your children. You would need to know both that they are able to do the work and not about to rob you. You would want to know if they will keep the relationship a business one or expect a more friendly experience, like couch surfing.
In addition, the homeowners would need reputations of their own. Because, for a skilled tradesperson, a night of room and board is only worth a modest amount of work. You can’t give somebody a room and expect them to work the whole day on your project — or even much more than an hour. Perhaps if a whole house is given over, with rooms for the person and a whole family, more work could be expected. The homeowner may not be good at estimating the amount of work needed, and come away disappointed when told that the guest spent 2 hours on the problem and decided it was a much bigger problem.
Trading lodging for services is an ancient tradition, particularly on farms. In childcare, the “au pair” concept has institutionalized it and made it legal.
But alas, legality is the rub. The tax man will insist that both parties are making income and want to tax it, as barter is taxable. The local contractor licencing agency will insist that work be done only by locally licenced contractors, to local codes, possibly with permits and inspections. And immigration officials will insist that foreign tourists are illegally working. And there would be the odd civil disputes. An unions might tell members not to take work even from remote members of cousin unions.
The civil disputes could be kept to a minimum by making the jobs short and a good deal for the guests, since for the homeowners, the guest room was typically doing nothing anyway — thus the success of couch surfing — and making slightly more food is no big deal. But the other legal risks would probably make it illegal for a company to get in the middle of all this. At least in the company’s home country. A company based in some small nation might not be subject to remote laws. read more »
Submitted by brad on Sun, 2010-04-04 01:52.
A couple of weeks ago I wrote about the need for a good robocar driving simulator. Others have been on the track even earlier and are arranging a pair of robotic driving contests in simulator for some upcoming AI conferences.
The main contest is a conventional car race. It will be done in the TORCS simulator I spoke of, where people have been building robot algorithms to control race cars for some time, though not usually academic AI researchers. In addition, they’re adding a demolition derby which should be a lot of fun, though not exactly the code you want to write for safety.
This is, however, not the simulator contest I wrote about. The robots people write for use in computer racing simulators are given a pre-distilled view of the world. They learn exactly where the vehicle is, where the road edges are and where other cars are, without error. Their only concern is to drive based on the road and the physics of their vehicle and the track, and not hit things — or in the case of the derby, to deliberately hit things.
The TORCS engine is a good one, but is currently wired to do only an oval racetrack, and the maintainers, I am told, are not interested in having it support more complex street patterns.
While simulation in an environment where all the sensing problems are solved is a good start, a true robocar simulation needs simulated sensors — cameras, LIDAR, radar, GPS and the works — and then software that takes that and tries to turn it into a map of where the road is and where the vehicles and other things are. Navigation is also an important thing to work out. I will try to attend the Portland version of this conference to see this contest, however, as it should be good fun and generate interest.
Submitted by brad on Sat, 2010-04-03 00:35.
I love online check-in, and printing your boarding pass at home to avoid doing anything but going to the gate at the airport. Airlines are even starting to do something I asked for many years ago and sending a boarding pass to the cell phone that can be held up to a screen for check-in.
But if they can’t do that, I want them to let me to print my boarding pass long before my flight. In particular, to print my return boarding pass when I print my outgoing one. That’s because I have a printer at home but often don’t have one on the road.
Of course, you can’t actually check in until close to the flight, so this boarding pass would be marked as preliminary, but still have bar codes identifying what they need to scan. On the actual day of the flight, I would check in from my phone or laptop, so they know I am coming to the plane. There’s no reason the old boarding pass’s bar codes can’t then be activated as ready to work. Sure, it might not know the gate, and the seat may even change, but such seat changes are rare and perhaps then I would need to go to a kiosk to swap the old pass for a new one. If the flight changes then I may also need to do the swap but the swap can be super easy — hold up old pass, get new one.
I could also get a short code to write on the pass when I do my same-day check-in, such code being usable to confirm the old pass has been validated.
Submitted by brad on Tue, 2010-03-30 14:12.
It is no coincidence that two friends of mine have both founded companies recently to build telepresence robots. These are easy to drive remote control robots which have a camera and screen at head height. You can inhabit the robot, and drive it around a flat area and talk to people by videoconferencing. You can join meetings, go visit people or inspect a factory. Companies building these robots, initially at high prices, intend to sell them both to executives who want to remotely tour remote offices and to companies who want to give cheaper remote employees a more physical presence back at HQ.
There are also a few super-cheap telepresence robots, such as the Spykee, which runs Skype video conferencing and can be had for as low as $150. It’s not very good, and the camera is very low down, and there’s no screen, but it shows just how cheap such a product can get.
|“Anybots” QA telepresence robot|
When they get down to a price like that, it seems inevitable to me that we will see an emergency services robot on every block, primarily for use by the police. When there is a police, fire or ambulance call to an address, an officer could immediately connect to the robot on that block and drive it to the scene, to be telepresent. The robot would live in a small, powered protective closet either paid for by the city, but more likely just donated by some neighbour on the block who wants the fastest possible emergency response. Called into action, the robot’s garage door would open and the robot would drive out, and probably be at the location of the emergency within 60 to 120 seconds, depending on how densely they are placed. In the meantime actual first responders might also be on the way.
What could such a robot do? read more »
Submitted by brad on Mon, 2010-03-29 15:18.
Back in 2008 I wrote a controversial article about whether green transit was a myth in the USA. Today I updated the main chart in that article based on new releases of the Department of Energy Transportation Energy Fact Book 2009 edition. The car and SUV numbers have stayed roughly the same (at about 3500 BTUs/passenger-mile for the average car under average passenger load.)
- Numbers for buses are now worse at 4300. Source data predates the $4/gallon gas crisis, which probably temporarily improved it.
- Light (capacity) rail numbers are significantly worse — reason unknown. San Jose’s Light rail shows modest improvement to 5300 but the overall average reported at 7600 is more than twice the energy of cars!
- Some light rail systems (See Figure 2.3 in Chapter 2) show ridiculously high numbers. Galveston, Texas shows a light rail that takes 8 times as much energy per passenger as the average SUV. Anybody ridden it and care to explain why its ridership is so low?
- Heavy rail numbers also worsen.
- Strangely, average rail numbers stay the same. This may indicate an error in the data or a change of methodology, because while Amtrak and commuter rail are mildly better than the average, it’s not enough to reconcile the new average numbers for light and heavy rail with the rail average.
- I’ve made a note that the electric trike figure is based on today’s best models. Average electric scooters are still very, very good but only half as good as this.
- I’ve added a figure I found for the East Japan railway system. As expected, this number is very good, twice as good as cars, but suggests an upper bound, as the Japanese are among the best at trains.
- I removed the oil-fueled-agriculture number for cyclists, as that caused more confusion than it was worth.
- There is no trolley bus number this year, so I have put a note on the old one.
- It’s not on the chart, but I am looking into high speed rail. Germany’s ICE reports a number around 1200 BTU/PM. The California HSR project claims they are going to do as well as the German system, which I am skeptical of, since it requires a passenger load of 100M/year, when currently less than 25M fly these routes.