Search This Blog

Thursday, October 24, 2013

Federal Court of Appeals Says Police Need a Warrant to Track Vehicles via GPS

The Supreme Court ruled that attaching a GPS unit to a vehicle
constituted a 'search', but not if that search generally required
a probable cause warrant.
As reported by the Washington PostA federal appeals court in Philadelphia ruled Tuesday that the government must obtain a warrant to attach a GPS unit to a car.


The case involved alleged pharmacy burglaries in New Jersey, Pennsylvania, and Maryland: the authorities suspected a trio of brothers and slapped a magnetic GPS unit to one of their vehicles after consulting the U.S. Attorney's office -- but without obtaining a warrant. Using the evidence gathered from the device, the vehicle was tracked to a recently burglarized RiteAid. Police stopped the brothers shortly afterward, and a search allegedly revealed items from the RiteAid. In the resulting case, U.S. v. Katzin, the brothers argued that the evidence obtained as a result of the GPS unit should be inadmissible because the police had not obtained a warrant.
The District Court agreed with the brothers, and the government appealed the case to the Court of Appeals for the Third District. On Tuesday, a three-judge panel upheld the lower court's ruling, finding that the actions of the police were "highly disconcerting" under a physical intrusion theory of the Fourth Amendment. The judges dismissed the government's arguments that the search was legal because the police had probable cause even if they didn't seek a warrant, saying "generally speaking, a warrantless search is not rendered reasonable merely because probable cause existed that would have justified the issuance of a warrant."
That's important because it extends a recent Supreme Court ruling, which found that GPS tracking constituted a search but did not rule on whether it's reasonable to conduct such a search without a warrant. This week's ruling is the first time a federal appeals court has ruled since that landmark decision.
The appeals court also rejected a government argument that a GPS search might qualify for the automobile exception, in which police have greater leeway searching through vehicles. "A GPS search," the court found, "extends the police intrusion well past the time it would normally take officers to enter a target vehicle and locate, extract, or examine the then-existing evidence."
American Civil Liberties Union Staff Attorney Catherine Crump, who had argued before the panel, called the decision "a victory for all Americans because it ensures that the police cannot use powerful tracking technology without court supervision and a good reason to believe it will turn up evidence of wrongdoing," in a statement. A request for comment from the U.S. Attorney's Office which argued the appeal was not returned.

Wednesday, October 23, 2013

A Tentative Step Toward Intelligent Highways: Bluetooth Detection In Vehicles Helps Crowdsource Traffic Flow

As reported by the Columbian: If you want to improve your travel time along some of Clark County’s busier roads, turn your Bluetooth device to “discoverable” mode.

Clark County traffic engineers — along with engineers from the State of Washington and the city of Vancouver — have in place a system that can detect Bluetooth devices in discoverable mode.

The program is being funded primarily through a $540,000 federal grant, with a small match from the local governments.

And with some 900 vehicles traveling through the Andresen corridor during peak travel times, even a small sampling is enough to give information on how quickly cars are moving along the roadways.

“Right now, we are seeing between 3 and 5 percent of traffic broadcasting in discoverable mode,” said Rob Klug, traffic signal operations and engineering lead at Clark County. “From that, we can track MAC addresses and ... get a timestamp of when cars enter and exit the area we are scanning. From there, the next step, we can make traffic signal settings based on (the information).”

Klug explained the process from an interior office at the Clark County Public Service Center. Large computer screens blink out traffic data and display live footage from intersection cameras. When something traffic-related in Clark County breaks, this office is where it starts to get fixed. At times, Klug will run signals manually from his computer to unclog congested areas.

He receives immediate reports from an automated system when cars start to back up beyond expectations.

Klug can talk at length about traffic philosophy and methodology, and he can recommend a few books to read if you’re really interested in how traffic systems have evolved over the years.

But before he explained how this Bluetooth system is being implemented, he stopped for a moment.

“It sounds kind of like Big Brother, right?” Klug said.

The fact of the matter is Bluetooth devices are most commonly used in connection with cellular phones. And it can sound, perhaps, a bit creepy that your local government can see those devices.

Because of that, Klug made it a point to make sure the county wouldn’t end up in a strange spot from day one.

Every Bluetooth device comes with a unique address to identify it. The system that tracks those addresses strips about half of the address off before tracking them. Further, if the system finds a device that isn’t moving through the corridor, it quits tracking it.

The system can’t listen in on your conversations, either.

And if some agency were trying to find a certain device for whatever reason, the county wouldn’t be able to help out.

“We don’t have any way of tracking like that,” Klug said.

And the bottom line is, if you don’t want the system to find your device, simply turn off discoverable mode.

“You can turn it off and just not participate,” Klug said. “But if you want travel times to improve, well, leave it on.”

Bob Hart, project manager at the Regional Transportation Council, is assisting with linking the Bluetooth program between the state, county and city. He said the hope is that enough information will be available by spring 2014 for the agencies to start tweaking traffic signal times.

“The reason for having the pilot project is we want to know if enhanced information can help us make the corridor work better,” Hart said. 

“We’re testing it now to see if the project is going to give us the information we want. The next part will be if the information can improve the corridor.”

Intelligent Rail Transport System to Enhance GCC's Rail Projects

As reported by ZawyaWith approximately $250 billion worth of rail projects planned or under way in the GCC [Gulf Coast] countries - and with plans to build more than 33,712 km of mainline routes and 3,004 km of metro, monorail and tramlines across the Middle East and North Africa - an "intelligent rail transport system" is vital to ensure an efficient, clean rail transport.

Intelligent rail system can help rail operators to reduce manpower requirements, meanwhile improving operational efficiency and passenger care capacity and to reduce operational expenses.

Ahead of the upcoming "MENA Rail and Metro Summit 2013" to be held on Oct. 28-30, 2013 at the Beach Rotana Hotel, Abu Dhabi, Yiwen Wang Chief Technology Officer, MEA Government and Enterprise Business, ZTE, said intelligent as applied in rail transport has two aspects, "one is to introduce the mature next generation communication technology into rail transit system, (and) other is to integrate the IT innovations and ideas with rail transport system." 

In an interview with the Saudi Gazette, Wang noted that that GCC countries have started great rail transportation construction plans, such as the Gulf railway plan jointly participated by all GCC countries, with Saudi Arabia's 9000 km railway and high-speed development blueprint, Qatar and Kuwait's grandiose plans for the subway and national railway, among others.

ZTE iRail includes a family of innovative solutions, such as GSM-R system which realize train-grand real-time communications, CCTV system with the ability of intelligent identifying, ZIFI systems which allows visitors to enjoy high speed Internet access while traveling at the speed of more than 300 mph [483 kmh].
In conventional rail system construction, communication and signaling system take only less than 5 percent of the total investment. When use of the new generation of iRail system, the initial capital expenditure will be improved slightly, but the proportion of the total investment is minimal and negligible. However, there is a significant contribution to improve transport efficiency and reduce operational expenditure, Wang pointed out.

Intelligent transport system provides innovative services relating to different modes of transport and traffic management and enables various users to be better informed and make safer, more coordinated, and "smarter" use of transport networks. And ZTE capitalizes on its having over 15 years industry experience in both rail/metro communication and signaling system, he added.


Moreover, he emphasized that whether it is "modern or future, high-speed, high efficiency, safety, comfort, energy saving, will be the key to intelligent rail transport system needs." 

Asked about the suitability of its solutions in the terrain and temperature of the GCC countries, Wang said "ZTE iRail solutions share a large number of mature technologies and design concepts that ZTE had accumulated in the field of communication and information technology. So far, ZTE's equipment have been widely deployed and verified in the climate of MENA region. We also provide flexible customization capabilities, so as to adapt to the culture of the Middle East."

He added that ZTE has nearly 30 years of experience in the communications industry, also has over 15 years experience in railway industry, saying that it has participated and witnessed the China railway, especially the high-speed railway, in recent 10 years of its rapid development. 

"At present, our solution has been widely used in railway projects in many Asian and European countries. Recently, we also noticed the MEA region, especially GCC countries, has become the world's hot spots of railway infrastructure investment, greatly leading the global growth rate of 8.1 percent. After careful thinking, ZTE wants to enter MEA's rail transport market and become an active partner in MEA's great railway development plan."

On whether the ZTE iRail solutions are economical, Wang explained that there are several aspects that iRail solutions have taken in consideration for saving investment. First, ZTE can provide end-to-end integration solution, greatly reduced the difficulty and manpower usage by the owner and the general contractor. 

"Evidenced by more than 50 subway lines' construction in China, the owner was inclined to cooperate with manufacturers with comprehensive integration abilities, like ZTE."

When operational expenses are taken into consideration, on the other hand, iRail solutions adopt various types of network-based new front-end sensors and back-end software and data platform, allowing rail transit system to have the self-perception ability on the change of environment conditions and business volume, he noted.

Tuesday, October 22, 2013

Time Dimensional Geo-Location Data Analysis

As reported by GCNWhat are the next big steps in GIS analysis? James Hipple, GIS adviser to USDA's Risk Management Agency, points to two.

First, he said, is the ongoing effort to integrate data sets. Noting the massive data sets generated by various government agencies, Hipple pointed to the analytic potential they could deliver if they are combined. The snag? "Because they are such large data sets we end up with bandwidth problems," he said.
The other major step, he said, will be the inclusion of temporal analysis — mapping changes in selected characteristics over time. It could be a flood, the spread of a wildfire, vehicle or vessel movements, or changes in crop plantings. 
"A lot of times we haven't been doing the temporal stuff because the analysis tools haven't been there," Hipple said. "Now that those analysis tools are there I think a lot more of us are thinking, ’OK, how do we look at this in more of a temporal fashion?’ "
The tools for temporal analysis indeed are there, said Sinam Al-Khafaji, Esri’s account manager for USDA, at least since Esri introduced its temporal analysis tools earlier this year.
"You can with near real-time information set up a 'geofence,'" Al-Khafaji said. "If you're monitoring something that's moving you can set up a [scheduled or persistent] boundary and when that boundary is crossed you can set up actions and alerts to say, 'Hey, something has entered or exited this boundary.' You can also have workloads that say, 'When something enters this boundary run this process.' "
And it doesn't have to be just moving objects, he said. The same thing can be done with tabular values in data attached to a map. For example, a map might be configured to display changes in soil moisture over time, and a change in the data that rises above a specified value can trigger an alert.
"There is interest, and a lot of this technology is already available to USDA," Al-Khafaji said, "but it just takes time for this type of technology to gain wide and prevalent adoption."

Glitch on October 2012 Delta 4 Mission Is Behind GPS 2F-5 Launch Delay

As reported by Space News:  New information stemming from the investigation into an engine issue during a Delta 4 launch a year ago led United Launch Alliance (ULA) to delay the upcoming launch of the GPS 2F-5 positioning, navigation and timing satellite aboard a similar rocket, the company said.


The GPS 2F-5 satellite originally was slated to launch aboard a Delta 4 rocket from Cape Canaveral Air Force Station, Fla., on Oct. 17. But that date was pushed back to Oct. 23 in recent weeks. Then, on Oct. 15, Air Force officials said the launch had been delayed again, but did not specify a reason.
In an update posted on its website Oct. 18, Denver-based ULA said “updated conclusions” about the October 2012 Delta 4 launch, in which the vehicle’s upper stage experienced a thrust glitch, led to the postponement. Despite thrust issue — the rocket’s RL-10 upper-stage engine underperformed — the rocket ultimately was able to deliver its payload, also a GPS 2F satellite, to its proper orbit using reserve fuel.
The problem and ensuing investigations delayed at least two subsequent missions. The Delta 4 returned to flight the following May with the successful launch of an Air Force Wideband Global Satcom communications satellite and has since conducted two more successful missions.
In the meantime, the Air Force in May successfully launched its fourth GPS 2F navigation satellite from Cape Canaveral atop a ULA Atlas 5 rocket.
ULA in December said a fuel leak was behind the Delta 4 upper-stage thrust anomaly during last year’s GPS mission. In its Oct. 18 statement, ULA said the ongoing investigation has led to “updated conclusions related to dynamic responses that occurred on the engine system during the first engine start event.” 
As a result, the GPS 2F-5 launch was delayed to determine whether more modifications to the launch vehicle are warranted, ULA said. The rocket “has completed the standard and checkout on the launch pad and will be maintained in a ready state for spacecraft mate and launch pending completion of this assessment,” ULA said. 
A new launch date will be determined once the assessment is completed in the coming weeks, ULA said. 
The October 2012 glitch triggered separate investigations by the Air Force and by ULA and RL-10 engine maker Aerojet Rocketdyne of Sacramento, Calif. 
Several weeks after the incident, Gen. William Shelton, commander of Air Force Space Command, said the Air Force could ill afford to lose a satellite in a launch failure and that it was therefore important to determine the precise cause of the engine thrust anomaly. But just two months later, in January, Shelton said the investigations might never conclusively determine a root cause.

Monday, October 21, 2013

New Indoor Location Technologies Emerge as Retailers’ Interest in Tracking Soars

For retailers, customer location is quickly becoming a top priority
for brick and mortar shopping venues.
As reported by Inside GNSSNew technologies are emerging to fill the gap left by GNSS services whose signals cannot penetrate indoor spaces. Using everything from triangulation and flickering light bulbs to the Earth’s magnetic field, start-up companies are lining up to help brick-and-mortar retailers beat back their online competition with location-inspired service.


Retailers “are trying to turn their stores into showrooms” and use location-based data to connect with and influence customers who might otherwise peruse their shelves then go order the products online, said Dan Ryan, co-founder and CEO of location start-up ByteLight. “[Retailers] have identified [customer] location as a top priority.”
ByteLight uses light based communication between the store
and handheld devices so that the customer can find what they
are looking for - and the most direct way there.
“I think people want to be treated as clients as opposed to customers,” said John Fisher, co-founder of the Toronto, Ontario, Canada-based company DMTI Spatial, which provides “enterprise location intelligence solutions.”
Consumers want stores to offer goods and services tailored to them, Fisher said. The more firms can use information “to provide better and more pointed service to individuals, the better we can achieve that.”
Cambridge, Massachusetts-based ByteLight offers software that modulates LED lights, turning them into information beacons. It licenses the software to LED manufactures and sells a software platform that can be integrated into any mobile app to provide real-time location data accurate to within a meter.
“The software basically modulates the LED light,” explained Ryan. “It will actually interact with the LED and the light will be flickering on and off so fast that your eye cannot see — but in a way that we can detect using by the camera in any smart phone.”
The technology’s meter–level accuracy is the “Holy Grail” for indoor location, said Ryan.
WiFiSlam uses a combination of WiFi and GPS to help
derive customer location; with a high level of accuracy.
“At that level of accuracy you are going to enable a whole new ecosystem of apps and, particularly in retail, you’re going to enable CPGs (consumer product goods) and brands to reach directly to consumers,” Ryan told Inside GNSS. “The first phase of location was focused on the retailers themselves. The next phase of location is going to be focused on brands and CPGs.”
It’s not just small firms that are scrambling for a place in the retail location market. Apple underscored its interest in the space with the purchase earlier this year of WiFiSlam in a deal reportedly valued at $20 million. According to thenextweb.com WiFiSlam uses a combination of WiFi and GPS signals to derive location information and develop more accurate maps — particularly indoor maps.
Apple is also offering iBeacons on the latest versions of the iPhone. Reports suggest the technology enables beacons, placed anywhere inside a retail space, for example, to transmit information to an iBeacon-equipped iPhone using Bluetooth low energy (BLE) communications technology. The advantage for Apple, beside the fact that a great many phones have Bluetooth, is that many of the iPhones sold over the last two years reportedly need only a software upgrade to become iBeacon capable.

Perhaps the firm with the most ambitious plans, however, is Finland-based IndoorAtlas. The company released its first app at Advertising Week in September in New York. The software uses the distortions in the Earth’s magnetic field caused by the steel in a structure to pinpoint a smart phone user inside the structure.
IndoorAtlas can locate someone with the app to within a meter, said Wibe Wagemans, the firm’s U.S representative. “With WiFi, for example if you are in a lab situation you might get WiFi accuracy down to maybe 7 to 12 meters — in perfect conditions and that would require what they call WiFi triangulation. That would not work with the WiFi that is inside buildings today. You would need to install completely new hardware. For large buildings those installations will cost way over $100,000 per building.”
IndoorAtlas has its own challenges, however, specifically that retailers need to map their store’s geomagnetic field in order to use the app to locate customers.
IndoorAtlas uses crowdsourced geomagnetic 'profiles' to update
changing maps of indoor environments. 
“Right now we do need the floor plans and the magnetic maps. But the partners that we have spoken to say, for them, it is not a big hurdle at all,” said Wagemans. “We are speaking to retailers with a few thousand stores and they say that the cost to magnetically map all the thousands of stores is insignificant compared to all the other solutions out there, including Bluetooth and WiFi.”
Wagemans suggested, however, that having building maps might not always be an issue. He said IndoorAtlas could use indirect crowd sourcing or SLAMing (simultaneous localization and mapping) to trace the layout of unmapped buildings fairly quickly.
You have the application running in the background, explained Wagemans, where it “kind of sniffs out where you are.” You derive a map of the building as you go based on the data gathered along the way. If you can combine data from a number of users through the cloud — the technique used by the Waze app to track traffic conditions and map roads — you can develop maps of buildings all over the world fairly quickly, he asserted.
“A retailer would say ‘Hey, my app has millions of users,’” said Wagemans, “And while these users are roaming my store, I know where they are going. I can grab their magnetic field data — if I get their permission, their opt-in — and as a result I can build maps and floor plans. And, even [if things get moved around], the magnetic maps will automatically be updated because I have people in the store and I get the latest real-time information.’”
You could take this approach global if you could incorporate the IndoorAtlas app into the work of a mapping firm that is constantly developing new maps, said Wagemans, “you would have most of the buildings in the world covered” in fairly short order.  
When asked if IndoorAtlas was currently working with a mapping company in this way, Wagemans said he could not disclose that.
“We are talking to players in several verticals but I cannot disclose any names,” he said, adding, “Eventually our goal is to become the GPS of indoors.”

Sunday, October 20, 2013

A Plan to Turn Every Lightbulb Into an Ultra-Fast Alternative to Wi-Fi

As reported by QuartzCurrent wireless networks have a problem: The more popular they become, the slower they are. Researchers at Fudan University in Shanghai have just become the latest to demonstrate a technology that transmits data as light instead of radio waves, which gets around the congestion issue and could be ten times faster than traditional Wi-Fi.
+

In dense urban areas, the range within which Wi-Fi signals are transmitted is increasingly crowded with noise—mostly, other Wi-Fi signals. What’s more, the physics of electromagnetic waves sets an upper limit to the bandwidth of traditional Wi-Fi. The short version: you can only transmit so much data at a given frequency. The lower the frequency of the wave, the less it can transmit.
But what if you could transmit data using waves of much higher frequencies, and without needing a spectrum license from your country’s telecoms regulator? Light, like radio, is an electromagnetic wave, but it has about 100,000 times the frequency of a Wi-Fi signal, and nobody needs a license to make a light bulb. All you need is a way to make its brightness flicker very rapidly and accurately so it can carry a signal.
+
The idea sounds daft: Who would want to sit under a flickering bulb? But Li-Fi, a standard proposed just two years ago, is seeing rapid technological progress.
+

First, data are transmitted to an LED light bulb—it could be the one illuminating the room in which you’re sitting now. Then the light bulb is flicked on and off very quickly, up to billions of times per second. That flicker is so fast that the human eye cannot perceive it. (For comparison, the average energy-saving compact fluorescent bulb already flickers between 10,000 and 40,000 times per second.) Then a receiver on a computer or mobile device—basically, a little camera that can see visible light—decodes that flickering into data. LED bulbs can be flicked on and off quickly enough to transmit data around ten times as fast the fastest Wi-Fi networks. (If they could be manipulated faster, the bandwidth would be even higher.)

Li-Fi’s limitations are similar to next-generation Wi-Fi
Li-Fi has one big drawback compared to Wi-Fi: you, or rather your device, need to be within sight of the bulb. It wouldn’t necessarily need to be a special bulb; in principle, overhead lights at work or at home could be wired to the internet. But it would mean that, unlike with Wi-Fi, you couldn’t go into the next room unless there were wired bulbs there too.
1
However, a new generation of ultrafast Wi-Fi devices that we’re likely to start using soon face a similar limitation. They use a higher range of radio frequencies, which aren’t as crowded with other signals (at least for now), and have a higher bandwidth, but, like visible light, cannot penetrate walls.

+
Engineers and a handful of startups, like Oledcomm, have been experimenting with Li-Fi technology. The Fudan University team unveiled an experimental Li-Fi network in which four PCs were all connected to the same light bulb. Other researchers are working on transmitting data via different colors of LED lights—imagine, for example, transmitting different signals through each of the the red, green and blue LEDs inside a multi-colored LED light bulb.
+

Because of its limitations, Li-Fi won’t do away with other wireless networks. But it could supplement them in congested areas, and replace them in places where radio signals need to be kept to a minimum, like hospitals, or where they don’t work, such as underwater.