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An automatic trip is an action performed by some system, usually a safety instrumented system, programmable logic controller, or distributed control system, to put an industrial process into a safe state. It is triggered by some parameter going into a pre-determined unsafe state.
Trip wires are frequently used in booby traps — where either a tug on the wire, or the release of tension on it, will trigger the explosives. Soldiers sometimes detect the presence of tripwires by spraying the area with Silly String. It will settle to the ground in areas where there are no wires; where wires are present, the "strings" will ...
Laser jammers for civilian use have evolved in recent years. The first laser jammer ever produced was by K40 Electronics in April 1994, known as the K40 Laser Defuser. Next came the Lidatek LE-10 Laser Echo by Lidatek LLC, then the Blinder M06 HP by blinder.dk, then the Blinder M10 Twin, then the LE-20 to LE-30. Blinder remade the M10 Twin into ...
Laser devices, such as a LIDAR speed gun, are capable of producing reliable range and speed measurements in typical urban and suburban traffic environments without the site survey limitation and cameras. This is reliable in city traffic because LIDAR has directionality similar to a typical firearm because the beam is shaped more like a pencil ...
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A back up beeper warns of a garbage truck backing up as it works its way around a cul-de-sac. A white-noise back-up beeper provides a less disruptive alert than the original pure-tone alert. A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse.
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An alarm is used to warn the driver of a potential collision hazard in the pre-collision system. The pre-collision braking control was upgraded in 2010 to allow the vehicle to stop automatically if the speed difference between the EyeSight-equipped vehicle and the object in front is less than 30 km/h (19 mph) and the driver takes no action to ...