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Anti-theft System
Anti-theft systems protect valuables such as vehicles and personal property like wallets, phones, and jewelry. They are also used in retail settings to protect merchandise in the form of security tags and labels. Anti-theft systems include devices such as locks and keys, RFID tags, and GPS locators. Anti-theft Under normal circumstances, theft is prevented simply through the application, and social acceptance, of property law. Ownership can be marked using technologies such as vehicle license plates, name tags or RFID. When clear owner identification is not possible, and when there is a lack of social observance, people may be inclined to take possession of items to their own benefit at the expense of the original owner. ''Motive'' and ''opportunity'' are two enabling factors for theft. Given that motives for theft are varied and complex, and are, generally speaking, not within the control of the victim, most methods of theft prevention rely on reducing opportunities for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locks-and-keys (computing)
Locks-and-keys is a solution to dangling pointers in computer programming language A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually def ...s. The locks-and-keys approach represents pointers as ordered pairs (key, address) where the key is an integer value. Heap-dynamic variables are represented as the storage for the variable plus a cell for an integer lock value. When a variable is allocated, a ''lock value'' is created and placed both into the variable's cell and into the pointer's key cell. Every access to the pointer compares these two values, and access is allowed only if the values match. When a variable is deallocated, the key of its pointer is modified to hold a value different from the variable's cell. From then on, any attempt to dereference the pointer can be flagged as an erro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passive Immobilizer
An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (transponder or smart key) is present. This prevents the vehicle from being "Hotwiring, hot wired" after entry has been achieved and thus reduces motor vehicle theft. Research shows that the uniform application of immobilisers reduced the rate of car theft by 40%. Description The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbeuel and patented in 1919. They developed a 3x3 grid of double-contact Electric switchboard, switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and Car alarm, sounding the Vehicle horn, horn. The system settings could be changed each time the car was driven. Modern immobiliser systems are automatic, meaning the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crime Prevention
Crime prevention refers to strategies and measures that seek to reduce the risk of crime occurring by intervening before a crime has been committed. It encompasses many approaches, including developmental, situational, community-based and criminal-justice interventions, to address risk factors at individual, family, community and societal levels. These strategies aim to deter potential offenders, reduce opportunities for offending and mitigate the fear of crime among the public, and are used by many governments in their efforts to reduce crime, enforce the law, maintain criminal justice and uphold overall stability. Studies Criminologists, commissions and research bodies such as the World Health Organization, the United Nations, the United States National Research Council and the UK Audit Commission have analyzed their and others' research on what lowers the rates of interpersonal crime. They agree that governments must go beyond law enforcement and criminal justice to tackle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danish Bicycle VIN-system
The Danish bicycle VIN-system is a system introduced in 1942 by the Danish government, providing all bicycles in Denmark with a unique code. The VIN code is a combination of letters and digits embedded into the bicycle frame and consists of a manufacturer code, a serial number, and construction year code. Since 1948, it has been illegal to sell bicycle frames in Denmark without an embedded VIN. Because of this, insurance companies in Denmark will not pay indemnities for stolen bicycles without a VIN. Location of the VIN By default, the VIN is to be engraved into the seat tube or the down tube, but if these are made of such a material that hinders this, it may alternately be put on the bottom bracket shell. In very special instances, and only with the approval of the Danish National Police Commissioner’s Office, it may be applied by other means and on other locations. Components of the VIN The bicycle VIN is constructed of three elements: a letter-block, a digit-block and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smartwater
SmartWater is a traceable liquid and forensic asset marking system ( taggant), applied to items of value to identify thieves, and deter theft. The liquid leaves a unique identifier, whose presence "cannot be easily seen by the naked eye" except under ultraviolet black light. History SmartWater, the forensic technology company, was started in the early 1990s by Phil Cleary. Phil's brother, Mike Cleary, a Chartered Chemist and a Fellow of the Royal Society of Chemistry, created SmartWater, and was responsible for technology development, whereas Phil Cleary looked after the business side of things. In 1996, SmartWater gained a national profile when the Clearys won the Prince of Wales Award for the product with the most commercial potential on BBC's Tomorrow's World. From 2016 to 2019, SmartWater initiated an M&A program, which culminated in the acquisition of PID Systems Ltd in Prestwick, Scotland. This led to the formation of the SmartWater Group Limited, comprising SmartWater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phone Home
In computing, phoning home is a term often used to refer to the behavior of security systems that report network location, username, or other such data to another computer. Phoning home may be useful for the proprietor in tracking a missing or stolen computer. In this way, it is frequently performed by mobile computers at corporations. It typically involves a software agent which is difficult to detect or remove. However, phoning home can also be malicious, as in surreptitious communication between end-user applications or hardware and its manufacturers or developers. The traffic may be encrypted to make it difficult or impractical for the end user to determine what data are being transmitted. The Stuxnet attack on Iran's nuclear facilities was facilitated by phone-home technology, as reported by ''The New York Times''. Legally phoning home Some uses for the practice are legal in some countries. For example, phoning home could be for access restriction, such as transmitting an au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SmartWater
SmartWater is a traceable liquid and forensic asset marking system ( taggant), applied to items of value to identify thieves, and deter theft. The liquid leaves a unique identifier, whose presence "cannot be easily seen by the naked eye" except under ultraviolet black light. History SmartWater, the forensic technology company, was started in the early 1990s by Phil Cleary. Phil's brother, Mike Cleary, a Chartered Chemist and a Fellow of the Royal Society of Chemistry, created SmartWater, and was responsible for technology development, whereas Phil Cleary looked after the business side of things. In 1996, SmartWater gained a national profile when the Clearys won the Prince of Wales Award for the product with the most commercial potential on BBC's Tomorrow's World. From 2016 to 2019, SmartWater initiated an M&A program, which culminated in the acquisition of PID Systems Ltd in Prestwick, Scotland. This led to the formation of the SmartWater Group Limited, comprising SmartWater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SelectaDNA
SelectaDNA is a forensic property marking system used as part of crime prevention strategies for businesses and residential properties. Mechanism The SelectaDNA is a range of property and offender marking products combining synthetic DNA coding with microdot technology. Each SelectaDNA kit has sufficient fluid to mark up to 50-60 items or parts of an item such as a car. Both the fluid and the microdots carry a unique code which the owner has to register in a database to which the police has access. In case of theft and the police recovering the item, it can be traced back to its owner. A code found on an asset or person can be deciphered by a molecular genetic laboratory and identified back to a specific owner or location. The fluid is almost invisible, does no damage to the property and only becomes visible in ultraviolet light. Also, dogs can be trained to sniff SelectaDNA marked items, as demonstrated by an initiative run by Wiltshire Police in cooperation with Search Dog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Article Surveillance
Electronic article surveillance (EAS) is a type of system used to prevent shoplifting from retail stores, pilferage of books from libraries, or unwanted removal of properties from office buildings. EAS systems typically consist of two components: EAS antennas and EAS tags or labels. EAS tags are attached to merchandise; these tags can only be removed or deactivated by employees when the item is properly purchased or checked out. If merchandise bearing an active tag passes by an antenna installed at an entrance/exit, an alarm sounds alerting staff that merchandise is leaving the store unauthorized. Some stores also have antennas at entrances to restrooms to deter shoppers from taking unpaid-for merchandise into the restroom where they could remove the tags. History EAS tags that could be attached to items in stores were invented by Arthur Minasy in 1964. He filed a patent for his "Method and Apparatus for Detecting the Unauthorized Movement of Articles" in 1965 with the patent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laptop With Anti-theft Alarm Tag In Store 20180625
A laptop computer or notebook computer, also known as a laptop or notebook, is a small, portable personal computer (PC). Laptops typically have a Clamshell design, clamshell form factor (design), form factor with a flat-panel computer screen, screen on the inside of the upper lid and an alphanumeric keyboard and pointing device on the inside of the lower lid. Most of the computer's internal hardware is in the lower part, under the keyboard, although many modern laptops have a built-in webcam at the top of the screen, and some even feature a touchscreen display. In most cases, unlike tablet computers which run on mobile operating systems, laptops tend to run on desktop operating systems, which were originally developed for desktop computers. Laptops are used in a variety of settings, such as at work (especially on business trips), in education, for PC game, playing games, Content creation, content creating, web browser, web browsing, for personal multimedia, and for general P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Immobilizer
An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (transponder or smart key) is present. This prevents the vehicle from being " hot wired" after entry has been achieved and thus reduces motor vehicle theft. Research shows that the uniform application of immobilisers reduced the rate of car theft by 40%. Description The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbeuel and patented in 1919. They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. The system settings could be changed each time the car was driven. Modern immobiliser systems are automatic, meaning the owner does not have to remember to activate it. Earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Control Unit
An engine control unit (ECU), also called an engine control module (ECM), is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU include the fuel injection and ignition systems. The earliest ECUs (used by aircraft engines in the late 1930s) were mechanical-hydraulic units; however, most 21st-century ECUs operate using digital electronics. Functions The main functions of the ECU are typically: * Fuel injection system * Ignition system * Idle speed control (typically either via an idle air control valve or the electronic throttle system) * Variable valve timing and/or variable valve lift systems The sensors used by the ECU include: * accelerator pedal position sensor * camshaft position sensor * coolant temperature sensor * crankshaft position sensor * knock sensors * inlet manifold pressure sensor ( MAP sensor) * intake air temperature * intake air mass flow rate sensor ( MAF sensor) * oxygen (lambda) s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
