The Raspberry Pi is a small credit card-sized computer that packs a punch. Although it is not as powerful as larger devices, there certainly are benefits to using a Raspberry Pi.
Firstly, just because of its size, it is extremely portable and can be integrated into projects with limited space. In addition, the General Purpose Input/Output pins of a Pi allow it to directly control electronic components. This is in contrast to Mac/Windows/Linux PCs that do not offer this level of control.
Now that I've hyped up the Pi, let's jump into some cool projects that you can do with it. If you've ever dreamed of being a tinkerer/inventor, the Raspberry Pi is a great platform to get started. Keep reading to find out how you can build some serious chops tinkering with a Pi!
If you wish to purchase a Raspberry Pi, visit the Raspberry Pi Foundation's website to find out how you can do so. The lowest cost Pi, the Pi Zero, starts at just $5 for the board only.
A security camera can give you the peace of mind that your home will be safer. In case of the worst, where something bad happens like a break-in, a security camera can provide evidence that can lead to the capture of the culprit.
Security cameras are definitely a nice addition to your home. If you have a Pi or you're thinking of getting one, then a Raspberry Pi HD surveillance camera project may pique your interest. Best of all, the user scavix on Instructables already has the perfect guide for you. His setup has cost around $120.
With this setup, you can watch a live stream of your camera from anywhere via a web browser, as well as record detected motion. While there are cameras on the market with already packing these features, bear in mind that they seldom allow local storage and offer quite limited storage options. It is even possible to setup notifications via Growl for when motion is detected.
I know we just spoke about a camera but this one is wearable! Adafruit has put together a clever guide for building a wearable time-lapse camera using a Raspberry Pi Zero. While this camera doesn't record video or audio, it is still very cool.
Note that the case displayed in the picture above was 3D printed. You could always construct your own case however but if you have access to a 3D printer, all of the instructions on how to construct the case are within the guide provided on the Adadfruit website.
This would be an excellent tool if you are into action sports or vlogging.
I think you should take a moment to let this one sink in… DIY Amazon Tap!
The Amazon Tap is a device which provides access to Amazon Alexa and also doubles as a wireless speaker. Alexa is a smart, virtual assistant which can perform tasks such as controlling your smart home or even provide internet search results, among many other things. Visit Amazon's Alexa description page to find out more!
Amazon has a comprehensive guide on how to set this up on their Github page.
Wireless printing is all the rage these days. That's why it can be frustrating dealing with wired printers sometimes. Wireless printers give you the flexibility of no wires and let you free up space in your work area since you can put it in a separate area.
If you are frustrated with your wired printer then you might want to consider this wondrous Raspberry Pi Project. With the Raspberry Pi, you can set up a wireless print server, allowing access from Mac and Windows computers.
The possibilities are endless with the Raspberry Pi, but hopefully, these 4 projects got the inventive gears in your mind turning. If you have any ideas for cool projects, come across any or have already made some let us know in the comments below!


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Encyclopedia > Telephone switch
Redirected from Telephone switch
Note regarding usage: many of the terms in this article have conflicting UK and US usages.
central office = Exchange building in the U.S.
telephone exchange = Exchange building in the UK, and is also the UK name for a telephone switch, and also has a technical meaning in U.S. telecoms
telephone switch is the U.S. term, but is in increasing use in technical UK telecoms usage, to make the CO/switch/concentrator distinction clear
The term exchange can also be used to refer to an area served by a particular switch. And more narrowly, in U.S. usage can refer to the first three digits of the local number. In the past, the first two digits would map to a mnemonic exchange name, e.g. 869-1234 was TOwnsend 9-1234.
In the United States, the word exchange can also have the technical meaning of a local access and transport area under the Modification of Final Judgment (MFJ).
In U.S. and military telecommunication, a digital switch is a switch that performs time-division-multiplexed switching of digitized signals. Source: from Federal Standard 1037C and from MIL-STD-188. All switches built since the 1970s are digital, so for practical purposes this is a distinction without a difference. This article describes digital switches, including algorithms and equipment.
This article will use the terms:
telephone exchange for the building
telephone switch for the switching equipment
concentrator for the concentrator, whether or not it is co-located with the switch
Automatic telephone exchanges came into existence in the early 1900s. They were designed to replace the need for human telephone operators[?]. Before the exchanges became automated, operators had to complete the connections required for a telephone call. Almost everywhere, operators have been replaced by computerized exchanges.
An exchange automatically senses an off hook (tip) telephone condition, provides dial tone to that phone, receives the pulses or DTMF tones generated by the phone, and then completes a connection to the called phone within the same exchange or to another distant exchange.
The exchange then maintains the connection until a party hangs up, and the connection is disconnected. Additional features, such as billing equipment, may also be incorporated into the exchange.
Early exchanges used motors, shaft drives, rotating switches and relays. Some types of automatic exchanges were Strowger, All Relay, X-Y, Panel and Crossbar.
A telephone switch is the brains of an exchange. It is a device for routing calls from one telephone to another, generally as part of the public switched telephone network). They work by connecting two or more digital virtual circuits together, according to a dialed telephone number.
Individual local loop telephone lines are connected to a remote concentrator. In many cases, the concentrator is co-located in the same building as the switch. The interface between concentrators and telephone switches has been standardised by ETSI as the V5 protocol.
Some telephone switches do not have concentrators directly connected to them, but rather are used to connect calls between other telephone switches. Usually a complex machine (or series of them) in a central exchange building, these are referred to as "carrier-level" switches.
Most former telephone exchange buildings now house only remote concentrators for the "parent" switch, usually several kilometres away. In certain cases an concentrator may be "remote parented" on an switch hundreds of kilometres away. This is done to increase the resiliency of the network, so that even a total regional outage of the telephone system will leave some essential telephone lines working.
Telephone switches are usually owned and operated by a telephone service provider or "carrier" and located in their premises, but sometimes individual businesses or private commercial buildings will house their own switch (which may well be owned and operated by a telephone service provider still).
The switch's place in the system
Telephone switches are a small part of a large network. The most expensive thing is to rewire. Much of the modern switching fabric is actually outside the telephone exchange building.
Up to several hundred telephones attach to a remote concentrator. In the U.S., you and your neighbors share a concentrator in a little box near your houses. In Europe, the building that once contained your local Strowger telephone exchange is usually empty except for a remote concentrator -- the switching mostly occurs elsewhere.
When you pick up the phone, the concentrator produces dial tone. When you dial, it reads the tones. When you're done dialing, the concentrator's microcomputer sends the dialing data to the central switch, which allocates a time slot for the dialing phone on the wire pairs that pass through the concentrator and through the switch.
The trick is that after the central switch tells the concentrator which time slot to use, the concentrator "opens" a time-slot on the loop to a local phone. The allocated time slot on the wiring into the concentrator is used to send data from the remote telephone's microphone to the local telephone's speaker. The allocated time slot on the wiring out of the concentrator (with the same time slot number) carries data from the local microphone to the remote speaker.
So, to arrange a connection, the switch just completes the circuit between your phone and the remote phone. It interchanges the data from one to the other. Telephone "exchange" is exactly correct terminology.
Switches are used in both local central offices and in long distance centers.
1 Switch design
2 Switch control algorithms
3 Topological sort
4 Fault tolerance
Switch design
Long distance switches may use a slower, more efficient switch-allocation algorithm than central offices, because they have near 100% utilization of their input and output channels. Central offices have more than 90% of their channel capacity unused.
While traditionally, telephone switches connected physical circuits (e.g., wire pairs), modern telephone switches use a combination of space- and time-division switching. In other words, each voice channel is represented by a time slot (say 1 or 2) on a physical wire pair (A or B). In order to connect two voice channels (say A1 and B2) together, the telephone switch interchanges the information between A1 and B2. It switches both the time slot and physical connection. To do this, it exchanges data between the time slots and connections 8000 times per second, under control of digital logic that cycles through electronic lists of the current connections. Using both types of switching makes a modern switch far smaller than either a space or time switch could be by itself.
The structure of a switch is an odd number of layers of smaller, simpler subswitches, interconnected by a web of wires that goes from each subswitch, to a set of the next layer of subswitches. In most designs, a physical (space) switching layer will alternate with a time switching layer. The layers are symmetric, because every call is symmetric (there's a connection in both directions).
A space-division subswitch uses digital multiplexers controlled by a cyclic memory. This takes physical space for the wiring.
A time-division subswitch reads a complete cycle of time slots into a memory, and then writes it out in a different order, also under control of a cyclic computer memory. This causes some delay in the signal.
Switch control algorithms
The scarce resources in a telephone switch are the connections between layers of subswitches. The control logic has to allocate these connections.
The connections consist of both time slots and wires. The first thing to try is to search for a subswitch that contains the needed in and out connections. There are two design paths to go if this simple search fails.
One way is to have enough switching fabric to assure that the pairwise allocation will always succeed. This is the method usually used in central office switches, which have low utilization of their resources.
Topological sort
Another way is to have a minimal switching fabric that still can theoretically make all the connections, and reorganize the switch's connections when a new connection won't fit.
If a subswitch with the needed pair of connections can't be found, a pair of subswitches will still have the necessary in and out, because there has to be at least the same number of connections between each layer of the switch, or else the switch will not be able to complete a full set of connections.
The pair of subswitches' connections can be reorganized with a clever algorithm called a topological sort, so that all the existing connections continue, though they might migrate between the two different subswitches. This is the method usually used in long distance switches, which have high utilization of their switching fabric.
A topological sort picks two subswitches. One has a needed input connection. The other has a needed output connection. The connections of both subswitches are placed in a list that also includes the desired new connection.
In the list, the basic trick is to trace connections. Starting from some input or output, the computer traces a connection to an output, then traces the other connection at that output to an input, and so forth, until it comes to an end. Each time it traces from input to output, the connection is placed in one subswitch, and removed from the list. When it traces from output to input, the connection is placed in the other subswitch and removed from the list. To complete correctly, tracing must begin with single connection inputs and outputs, and only then trace double-ended inputs and outputs, which might form loops.
Composite switches are inherently fault-tolerant. If a subswitch fails, the controlling computer can sense it during a periodic test. The computer marks all the connections to the subswitch as "in use". This prevents new calls, and does not interrupt old calls that remain working. As calls are ended, the subswitch then becomes unused. Some time later, a technician can replace the circuit board. The next test succeeds, the connections to the repaired subswitch are marked "not in use", and the switch returns to full operation.
To prevent frustration with unsensed failures, all the connections between layers in the switch are allocated using first-in-first-out lists. That way, when a disgusted customer hangs up and redials, they will get a different set of connections and subswitches. A last-in-first-out allocation of connections might cause a continuing string of very frustrating failures.
PBX Private Branch Exchange or business-level switch
The definition below is very technical, and a lot of it appears to be US-specific:
In telecommunication, a central office (C.O.) is a common carrier switching center in which trunks and loops are terminated and switched.
Note: In the DOD, "common carrier" is called "commercial carrier." Synonyms exchange, local central office, local exchange[?], local office, switching center (except in DOD DSN [formerly AUTOVON] usage), switching exchange, telephone exchange. Deprecated synonym switch.
Source: from Federal Standard 1037C
Clive Feather's guide to the BT network (http://www.davros.org/phones/btnetwork)
Telephone Exchange Name Project (http://ourwebhome.com/TENP/TENproject)
... Contents Ludvika Ludvika is a municipality in central Sweden, in the county of Dalarna. The municipality covers an area of 1500.7 ...

redpajama_set_name: RedPajamaCommonCrawl


SWALLOWS AGENCY are delighted to offer a 2 bedroom Coach House in this popular central location. Accommodation comprising kitchen breakfast room and sitting room, upstairs there are 2 double bedrooms and the bathroom with shower over the bath.
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American Cornball
by Christopher Miller
1.99 American Cornball http://covers.feedbooks.net/item/514652.jpg?t=1548371126 http://www.feedbooks.com/item/514652/american-cornball?utm_medium=uwishlist&utm_source=amazon
American Cornball is Christopher Miller's irresistibly funny illustrated survey of popular humor—the topics that used to make us laugh, from hiccups and henpecked-husbands to outhouses and old maids—and what it tells us about our country yesterday and today.
Miller revisits nearly 200 comic staples that have been passed down through our culture for generations, many originating from the vaudeville age. He explores the (often unseemly) contexts from which they… (more)
Miller revisits nearly 200 comic staples that have been passed down through our culture for generations, many originating from the vaudeville age. He explores the (often unseemly) contexts from which they arose, why they were funny in their time, and why they eventually lost their appeal. The result is a kind of taxonomy of humor during America's golden age that provides a deeper, more profound look at the prejudices, preoccupations, and peculiarities of a nation polarized between urban and rural, black and white, highborn and lowbrow.
As he touches on issues of racism and sexism, cultural stereotypes and violence, Miller reveals how dramatically our moral sensibilities have shifted, most notably in the last few decades. Complete with more than 100 period illustrations, American Cornball is a richly entertaining survey of our shifting comic universe.
Non-Fiction Humor Form Essays
Publisher: Harper (September 23, 2014)
Humor >
Form >


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Home > News > 30 Years of Baby Animals
30 Years of Baby Animals
Anniversary tour
As we mentioned in our recent feature on the music of 1991, this year marks the 30th anniversary of one the biggest Australian rock debuts of all.
Baby Animals' self-titled album hit the shelves in September 19, and in early 1992 it hit #1 in Australia and stayed in the chart for 9 months. For twelve years it reigned as the highest-selling debut album by an Australian band. To celebrate the album's 30th anniversary, the Baby Animals are hitting the road for a national tour in June. Tickets are on sale now.
Categories: News Author by Brian GiffinPosted on February 15, 2021 February 19, 2021 Bands: Baby Animals Tags: Aussie Rock, Australian Bands, Australian tours, Rock
Baby Animals Tonight
Spurts of Punk Rock
Synthesis of Evanescence
News 15 Years of Unwritten Law's 'Elva' 5 years ago
Album Reviews Ulcerate: Vermis 8 years ago
Galleries Stormrider Festival at Amplifier Bar 5 years ago
News MelodicRock Fest Cancelled? 1 year ago


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4-Wheel Vibe è il secondo album studio del gruppo pop punk statunitense Bracket, pubblicato nel 1995 da Hi-Rise Flat Records.

Tracce
Circus Act - 3:43 (Bracket)
Cool Aide - 3:32  (Bracket)
Happy to Be Sad - 1:53  (Bracket)
John Wilke's Isolation Booth - 2:46  (Bracket)
Tractor - 2:47  (Bracket)
Green Apples - 2:02  (Bracket)
Closed Captioned - 3:47  (Bracket)
Trailer Park - 3:07  (Bracket)
Fresh Air - 2:29  (Bracket)
P.C. - 2:50  (Bracket)
G-Vibe - 2:07  (Bracket)
Warren's Song, Pt. 4 - 2:51  (Bracket)
2 Hot Dogs for 99¢ - 1:50  (Bracket)
Metal - 1:27  (Bracket)
Pessimist - 2:11  (Bracket)
Lazy - 5:31  (Bracket)

Formazione
 Marty Gregori - voce e chitarra
 Larry Tinney -  chitarra
 Zack Charlos - basso
 Ray Castro - batteria

Note

Collegamenti esterni

redpajama_set_name: RedPajamaWikipedia


The Children's Home of Cleveland County provides a safe environment for families dealing with crises.
The agency helps families grow physically, emotionally, and spiritually, said executive director Margie Christopher.
The CHCC started as an emergency shelter in 1969 to offer services, classes and programs that will assist families in making living changes. It also provides residential care for abused and neglected children, supervised visitation opportunities, a social worker for families, and outpatient services for children and families.
"Connect, Commit to Change has given the children's home some wonderful volunteers and even a board member has come from this event," said Christopher. "A volunteer and his co-worker have volunteered to do an activity once a month, all year long for the kids and a church group has volunteered to have Thanksgiving dinner for the children's home."
The children's home operates two residential care buildings -- Aaron's in Lattimore and James Home in Shelby. These facilities house eight children at a time.
"Children are our future, and Connect, Commit to Change gives everyone the opportunity to help bring the Children's future to their full potential," Christopher said.
Goal?: To utilize the services, classes and programs that will assist families in making any necessary changes.


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Scott is located in Lafayette Parish, Louisiana. It has a land area of 11.40 square miles and a water area of 0.00 square miles. The population of Scott is 9,018 people with 3,716 households and a median annual income of $46,667. .
While counseling can certainly be an expense for individuals and families in Scott, with proper budgeting, it is entirely do-able and the risk/reward is worth it. For some families, it may be difficult to sustain a commitment to therapy without proper insurance coverage. If this is you, ask your therapist about low cost options as practitoners in and around Scott may have flexibility or sliding scales. Low cost counseling and affordable therapy are also sometimes offered by listed city and university level clinics, check with your local Scott public health department.


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Nuwara Eliya Sri Lanka luxury holiday bungalow - Nuwara Eliya History
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Villa Spring Acre Nuwara Eliya
History of Nuwara Eliya
The modern history of Nuwara Eliya begins in 1818 when a British Surgeon, Dr John Davy (Brother of Humphery Davy, the inventor of the Miners' Safety Lamp), rediscovered this area. It is said that Dr Davy expressed;
" I was walking in the middle of a forest. I saw beautiful white, shining diamond-watered waterfalls falling. I came to the top of a mountain. The people who came with me said that it is the highest land in this country."
Dr John Davy mentioned that this place - Nuwara Eliya - has so many 'Ashoka' trees, Elephants, Wild animals and Gemstones.
Today, known as 'Oliphant Estate', is the old 'Elephant Plane', where many Elephants lived. Even today, there are graves of 02 Elephant killers at the Golf Ground of Nuwara Eliya. One is written as 'Ibenishan Gordon Mendrow, Birth-1814.11.10 and Death-1841.01.24 - Died in the Elephant Plane'. The other one is written as 'Major William Thomas Rogerson, Death-1814.06.07. It is said that Major William Thomas Rogerson had killed more than 400 Elephants. The very much believed truth is; once in 07 years, this grave is attacked by thunder shocks. Even today, you can see the cracked grave closer to the Golf Grounds of Nuwara Eliya. People believe that it is the curse of God on the Elephant killer!
The story goes like this... A few British troops had chased an Elephant, and they had gotten lost in the forest. With food and other basic needs, they thought it would be much easier to spend the day and night in that forest. But that place's cool climate and fresh air kept them very fresh without any pain. They thought this was an excellent place to rest after fighting in the war, and once they returned home, they immediately informed the Governor, Sir Edward Barnes, about this place.
Sir Edward Barnes was the Governor from 1824-1831. He had constructed roads and shelters in Nuwara Eliya. He had built his holiday home in Nuwara Eliya, spending 8000 Pounds. He had named it "Barnes Hall". Today this place is known as the famous Grand Hotel of Nuwara Eliya, with more than 150 rooms. St. Andrews Hotel, Keena Hotel and Carlton Hotel are some other constructions. The District Secretary, Mr Loku Banda, has helped Sir Barnes to build these holiday homes.
Sir Edward Barnes made Nuwara Eliya a place to live for the people and is known as the "Father of Nuwara Eliya".
After Sir Barnes, Sir William Horton became the Governor from 1831-1837. He was the editor of the 'Colombo Journal' newspaper. He had written so many articles about Nuwara Eliya in his newspaper.
During this period, Mr Samuel had arrived from England in Nuwara Eliya. He had planned to build a house at Magasthota and a vast vegetable and animal farm. He went to England and returned in 1848 on the 'Pearl of Hard Week' ship through the sea path. He had brought plants, animals, other equipment and goods with him. His brothers John and Valentine have also come with him. He also got some expert people in the field of farming.
Mr Samuel and others needed help transporting the goods and animals to Nuwara Eliya. They had brought the goods in bullock carts from Colombo. At a difficult point near Ramboda Pass, the bullock carts had fallen down the steep slope the brothers' of Mr Samuel had died. Hence, from Ramboda, Mr Samuel hired labourers and brought the goods to Nuwara Eliya. Subsequently, Mr Samuel made an Agricultural village named 'Baker's Farm". The land cost him only 25 Shillings per acre. Even today, a 'stone letter' is left on the Baker's farm of Nuwara Eliya.
Mr Samuel Baker also had made a hospital ward at the Base Hospital of Nuwara Eliya in memory of his Late brothers. Even today, the 'Baker's Ward' is in the Base Hospital of Nuwara Eliya, situated at Hawa Eliya.
Mr Baker brewed his own beer and tried to grow grapes, oats, barley and wheat, which usually grows in low temperatures. However, his experiment was a failure. He closed down his farm in 1866 and went back to England. Sri Lanka's broadest waterfall, Bakers Falls in the Horton Plains National Park, is named after Mr Samuel Baker.
Sir William Gregory became the Governor in 1872 (1872-1877). He had the vision of making Nuwara Eliya the capital of Sri Lanka. He had so many proposals to develop Nuwara Eliya. Governor William Gregory drained a swamp and converted it into a lake, today a prime attraction in the city, known as 'Gregory Lake'. He had given the message to the world about the beautiful town of Nuwara Eliya, famous for its luxurious and cool climate, fertile land suitable for cultivation with crops such as Coffee, Tea, and 'Cinkona' and ideal for animal farming and Gem mining.
As a result of Governor William Gregory's announcement, many foreign merchants began to visit Nuwara Eliya. since then, the city's population has increased.
Sir Robert London became the Governor from 1877-1884. According to Sir William Gregory's advice, he constructed a railway track from Peradeniya to Nawalapitya and from there to Hatton and Nanu Oya.
By 1910 only 2 Sri Lankans owned houses in Nuwara Eliya, Maha Mudali Sir Soloman Dias Bandaranaike (father of S.W.R.D.Bandaranayake - later Prime Minister of Sri Lanka) and F.C.Loos.
After the end of World War I in 1918, more Sri Lankans bought land and built houses here. Some of them were Sir Ponnambalam Arunachalam and E.L.F. De Soyza. While Samuel Baker paid about Rs.25/- per acre, Sir Ponnambalam paid Rs.10,000/- for ½ an acre!
Some other points to note:
- British civil servants, high government officials and businessmen came here during April when the low country was hot and balmy. The plains introduced Trout fishing to the streams in Horton Plains and Nuwara Eliya.
- Governor West Ridgeway suggested that all roofs be painted red and till recently, many followed this practice.
- Many houses were built in the architectural style of the Tudor houses in England. The Nuwara Eliya Post Office is one of the oldest such houses. Some places had fireplaces.
'Thawalanthenna' (a small city along the Nuwara Eliya - Peradeniya main road) is a place thatwherevellers had used to rest with their bullock carts in the historical days.
- 'Kelegalle' and 'Kalukelle' (villages 1.5 km away from the Nuwara Eliya town) were used as resting places for bulls, which were used for transporting goods from Nuwara Eliya to other parts of the country.
Source: Nuwara Eliya Municipal Council website: http://nuwaraeliya.mc.gov.lk/
Post Office - Original photo taken in early 20th Century
Post Office - Photo taken in 21st century
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Home » Automotive » Cloud-based tech alerts drivers of approaching bikes
Cloud-based tech alerts drivers of approaching bikes
Article By : Junko Yoshida
Category : Automotive
The idea behind Ridar System is to give both riders and drivers a good-enough "five-second heads up."
« Previously: When will bikes, Harleys join the connected world?
I have spoken with Brent Massey, CEO and co-founder of Ridar Systems LLC., whose company has developed a cloud-based mobile technology to alert drivers [of cars] when riders [of motorcycles & bicycles] are close by.
The system that connects cycles and bikes with four-wheel vehicles is fairly simple and straightforward.
Riders and drivers simply need a smartphone (Android or iOS), cellular signals (3G, 4G, LTE), and a Ridar app downloaded from an app store or an insurance company.
Once the vehicle exceeds 10mph, the Ridar Systems launches its app in background, alerts drivers if a rider is approaching from behind, in front of or in a blind-spot. It can override phone calls, music, or turn-by-turn mapping if a collision is imminent.
Figure 1: Ridar app (Source: Ridar Systems)
Meanwhile, Ridar Systems uses gyroscopic data generated by a smartphone to detect a "motorcycle or bicycle lean," and identifies the device as a "rider."
The rider's smartphone then starts sending to the cloud simple coordinates–not map data–every split second via cellular. As the rider moves along, the new data constantly updates, keeping data usage at a minimum and saving power to prolong battery life, explained Massey.
Ridar Systems has developed predictive software that runs in the cloud. The cloud uses cellular signals sent from vehicles and motorcycles/bicycles every split second, calculates location, direction and speed information for each, generates a "five-second" heads up and sends out the notification.
The whole process—from a smartphone sending data via a cellular network to a cell tower, then to the cloud system running predictive software, determines any imminent danger, sends an alert to the cell tower and finally to a smartphone—takes about 100 milliseconds. That's the latency of Ridar Systems.
Massey acknowledged, "Our 'real-time' system is four times slower than V2V technology—which is typically 25 to 30 milliseconds. But when our system is applied to the real world, 100 milliseconds is pretty fast."
The start-up's technology is designed to offer "fuzzy accuracy," instead of pinning down the exact location of every vehicle, explained Massey. The idea behind Ridar System is to give both riders and drivers a good-enough "five-second heads up."
Of course, this begs the question of what happens when a smartphone loses its signal. In any cellular network-based communication systems, a clear drawback is the network itself, which can become the single point of failure.
However, having asked Massey all these questions, I was struck by the simplicity of Ridar System. Everyone has a smartphone in his pocket these days, and if there's a way to use it as a beacon to warn drivers of imminent collisions, why not use it?
It's easy to criticize any system for not being perfect. Just as the automotive and communication industries have done so with DSRC, we may argue–indefinitely—about how Ridar Systems should have backup signals, build connectivity that suffers no latency, design a system that tells us dead-on accuracy, etc.
Yes, we can do that—but to what end?
I don't think I'm alone in thinking that the tech community today sometimes spends more time than necessary quibbling over "wedge issues."
Drue Freeman, an independent consultant, advisor, investor and a well-known V2X advocate, told me recently that he sees the emergence of a "hybrid model"—of cellular technology and V2X communication.
When I asked for an example, he introduced me to Ridar Systems. It turns out Freeman works with the start-up.
Freeman said, "In the short term, I see opportunities to leverage existing cellular technology to enhance V2X in order to protect vulnerable road users like bicyclists."
In short, not every debate has to be an either-or between cellular and DSRC. Freeman said, "I think there are opportunities for hybrid approaches, even before we see a deployment around C-V2X."
Meanwhile, the 2017 Cadillac CTS is getting V2V technology. Sedans will be outfitted with DSRC short-range radio communication devices to transmit and receive simple messages, including vehicles' GPS location, speed and heading. Those messages are sent 1,000 times a second up to about 1,000 feet.
Of course, we can argue that we need at least 10,000 of these V2V vehicles on the road before we save any lives.
True enough. But you have to start somewhere.
First published by EE Times U.S.


Whizz chimichurri ingredients together until finely chopped. Place drumsticks in a glass or ceramic dish, add half the chimichurri (reserve the rest) and turn to coat. Cover and marinate for at least 30 minutes in the fridge.
Preheat the barbecue hotplate (or oven to 190°C) and roast or sear the tomatoes, capsicum and red onion with a little olive oil and seasoning until tender.
Soak bulghur in plenty of boiling water for 10 minutes, then drain well. Toss with almonds, zest and mint and dress with a splash of olive oil, a squeeze of lemon and chopped chilli to taste. Gently mix cooked veges through the bulghur, placing the vine tomatoes to the side.
Roast or barbecue drumsticks until cooked through. Serve on the salad and add a splash of chimichurri dressing.
You can also use couscous, orzo pasta or freekeh instead of bulghur.


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Q: Access external lib from oracle stored procedures How do we refer to external libraries in oracle stored procedure?
I did this.
loadjava -jarasresource -user apps/xxx@instance sqljdbc.jar

(I am loading the lib required for jdbc connection to sql server 2000,)
now, in my oracle stored procedure I want to refer to this lib something like this.
create or replace and resolve java source named SQLConnect as

    import java.sql.*;
    //import com.microsoft.sqlserver.jdbc.SQLServerDriver;

   public class SQLConnect {

   public static String Test() {

    // Create a variable for the connection string.
    //JDBC:SQLSERVER://LOCALHOST:1433;" +"DATABASENAME=ADVENTUREWORKS;INTEGRATEDSECURITY=true;.
    String connectionUrl = "jdbc:sqlserver://222.222.222.22:1433;databaseName=SQLSERVERNAME";

Please tell me how this can be done, as right now I am unable to access the library from my stored procedure.

A: The general answer is, first load the java class or jar into the database.  You don't need the source if you already have loaded the jar.  Then write a Java Stored Procedure to wrap the java method of interest.  Find out more.
However, looking at the specific library you want to work with - SQLServerDriver - I think you're still going to be disappointed.  That's not the right way to correct to SQL Server from Oracle. You need to check out Heterogeneous Connectivity.

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