Can you accurately see and write down one license plate number per second while driving at up to 100 miles per hour, even with darkness or bright sun limiting your sight? Fortunately, there are automated systems that can do this for you.

License plate readers use algorithms to decipher the characters in the captured image of a license plate to identify vehicles. Systems commonly use infrared lighting to allow the camera to take the picture at any time of day. Then they run the numbers against those in state, local, and national databases to find persons or vehicles connected to a crime or infraction.

Whether you call it ALPR, LPR technology, license plate recognition, automatic vehicle identification, or optical character recognition, it's one heck of a time saver and a great aid to the crime fighter.

 

ELSAG North America

ELSAG North America's Mobile Plate Hunter-900 (MPH-900), can be mounted to patrol cars for capturing license plate numbers. If a suspect license plate number is read, audible and visual alarms alert the officer within milliseconds.

Cameras, a processing unit, and proprietary software allow officers to capture images of license plates and instantaneously compare them with millions of hot list records to identify vehicles of interest. This system reads plates day or night, from all 50 States and most foreign countries including Arabic characters. It can also read other alpha-numeric identification systems-even from 1,500 feet in the air.

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EZ Tag

EZ Tag, in partnership with ELSAG North America, has married video inputs with image analysis software that identifies targeted plates using an onboard hot list, and returns an alarm back to the operator in milliseconds. Using a vehicle mounted video camera, a moving patrol car can check between 5,000 and 8,000 plates per eight-hour shift at speeds in excess of 75 mph while the officer is attending to other routine duties.

When the patrol officer receives an audible alarm, the laptop screen will display a digital picture of the plate and the vehicle as well as information as to the reason the plate is hot listed.

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Genetec

Genetec's AutoVu 4.3 is the newest version of its IP license plate recognition solution. New features include covert hit notification and wildcard hot lists that can check against partial plates.

AutoVu's real-time alarming and e-mail notification quickly informs assigned recipients of matched license plates, or hits. AutoVu also allows users to assign different priorities to hot lists. Each priority can be configured with a different color and alarm tone, alerting officers of hits both visually and audibly to easily identify the type of hit and its importance.

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INEX/ZAMIR

INEX/ZAMIR's HY ALPR camera and illuminator provides an integral infrared LED light source, ensuring consistent image quality regardless of the time of day, headlights, or weather. With an effective range of up to 100 feet, a pulsed LED array and a variable table, multi-shutter arrangement allow for a stream of images with each one having different contrast characteristics.

The HY, with its ability to provide up to 60 images per second, can be used for high-speed or low-speed applications and can be configured for triggered or non-triggered operation.

A solution using the HY camera/illuminator with INEX/ZAMIR InSignia ALPR software provides real-time license plate recognition using a proven set of algorithms. An open architecture allows InSignia software to work with existing back office programs or most any application needs.

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PIPS Technology (a Federal Signal company)

Federal Signal's automated license plate recognition (ALPR) Slate camera incorporates patented infrared illumination in an infrared camera for effective license plate imaging and a color camera for a vehicle overview image.

Patented filter and flash techniques compensate for headlights and bright sunlight, while TripleFlash technology reduces plate-to-plate variation issues.

When combined with PIPS Back Office System Server (BOSS), ALPR can be used for data mining efforts. PIPS also offers the PAGIS (Police ALPR Graphical Interface System), a proprietary in-car officer interface that seamlessly integrates with PIPS BOSS.

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Vigilant Video

Vigilant Video's CarDetector Mobile LPR Edition video analysis engine automatically scans, detects, and performs license plate recognition for mobile law enforcement vehicles. When any license plate is detected in the camera's field of view, powerful adaptive optical character recognition engines extract the plate image, apply image enhancement filters, and analyze each individual character of the plate, regardless of the plate colors or backgrounds.

CarDetector technology automatically triggers "in-car" audio/visual alarms based on LPR "hot lists" associated with stolen autos and other criminal activities in databases. 

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ELECTRONIC CITATION STREAMLINES TRAFFIC ENFORCEMENT

The Oregon Department of Transportation's Governor's Office of Highway Safety (ODOT) has streamlined agencies' ticket citation process by implementing APS PocketCitation software, an electronic citation system from Advanced Public Safety (APS) designed to automate and streamline the process of issuing traffic tickets using Zebra printers.

Previously, traffic citations were manually issued by the officer, who was required to write out a multi-part form and submit a copy to each party involved. The officer, court, and DMV each had to enter the same data into a different computer system before it went on the driver's record.

According to Jeffrey D. Rubenstein, founder and CEO of APS, 20 to 30 percent of all hand-written traffic citations are dismissed because of incorrect statute numbers, illegible handwriting, and administrative data errors. PocketCitation's on-board intelligence ensures the citation information entered is correct and that the citation itself is printed in clear, legible type by Zebra RW 420 mobile printers.

"Using our PocketCitation application and Zebra's high-performance mobile printers, law enforcement officers can issue a traffic citation in less than a minute," says Rubenstein. "This capability can minimize risk and increase officer safety because they spend less time on the side of the road and in contact with traffic offenders."

The APS PocketCitation application populates an agency's current ticketing form (or newly designed form) with data from the violator's driver's license or returned from an officer's query to the FBI's National Crime Information Center (NCIC) or state motor vehicle bureau. The officer selects the applicable violation from a drop-down menu on the computer screen, and the appropriate statute number, fine amount, and court information are automatically entered on the ticket.

The ticket is then printed out, clearly and legibly, using a compact, Bluetooth-enabled Zebra RW 420 mobile printer. At the end of the shift, officers dock their handheld PDAs to upload the e-citation data into a centralized computer system, totally eliminating the extra step of manual data entry.

"Now, our officers are safer because they can issue citations from behind the cover of their cars while maintaining a clear view of the violators' vehicles," says Steve Vitolo, program manager of Statewide Law Enforcement and Judicial Programs, Oregon Governor's Office of Highway Safety. Moreover, efficiency at traffic stops has greatly increased. "Once officers discover the benefits of these automated solutions, they are more reluctant to give them up than they would be if someone were to ask for their car keys!"

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