![]() The maximum number of alternating light and dark vertical lines that can be resolved per picture height. These displays only use up to half the power of a traditional monitor. A TFT LCD monitor improves image qualities including contrast and sharpness. It is usually measured in G units, which represent multiples of the acceleration of gravity.Ī high quality monitor used in appliances such as television sets, computer monitors and mobile phones. A ratio above 1:1 (greater than 0dB) indicates more signal than noise.Ī physical or mechanical shock is a sudden acceleration caused by outside factors such as impact. DC stands for direct current.Ĭompares the level of desired signal to the level of background noise. Most of our systems may be powered by 12 or 24 volt batteries, meaning they can be powered by the vehicle battery. The more pixels, the higher the quality image. A pixel is the smallest addressable element in digital imaging. Picture elements is another way to write pixel. Phase Alternation by Line (PAL) is a video system that transmits 25 frames per second (FPS). OEM style is an installation with a clean, factory look. Original Equipment Manufacturer (OEM) refers to equipment that was installed in a vehicle when it was manufactured. If your system has infra-red illuminators, 0 lux is needed. Measures how much ambient light (measure in lux) is needed to view an image. National Television System Committee (NTSC) is a video system that transmits 30 frames per second (FPS). The multiplexer is connected straight to the fuse box and has a power capacity of 12-24 volts. The multiplexer powers the system, receives all cameras feeds and sends them to the monitor. The control unit or "brain" of the system. This way the driver has footage from an accident, even when they’re away from their car. DVR's are useful for fleet managers because they provide footage of accidents and information on vehicle's whereabouts and driving routes.Ī feature that automatically records before, during and after an impact while in parking mode. Video recording mode where after video storage is full, the camera will seamlessly loop over and begin recording over the oldest footage.Ī recording device used to record video footage. Many of our cameras are equipped with infra-red lights. This greatly increases visibility in zero or low light conditions without an actual visible light source. Infra-reds emit light which the human eye cannot detect but cameras can. An IP69K rating is the highest rating available, meaning that the system is completely weatherproof. The larger the number, the higher the rating. The IP rating measures protection against solid and liquid objects. Once the G-Sensor is activated, event mode automatically begins.Ī style of video compression that allows for the greatest video quality with the smallest storage space. Measures impact or sudden changes in velocities. Event mode is usually triggered with unusual vehicle movement or sudden impact.įrames per second (FPS) is a measurement of how many unique consecutive images a camera can handle every second. Video recording mode which causes footage to be overwrite protected. The higher the dot resolution, the higher quality the image. Usually measured in millimeters (mm), a smaller number means a sharper image.ĭots are elements that make up an image. 16:9 is the international standard format for Full HD.Ī dot pitch measures the maximum sharpness of a displayed image. Common aspect ratios for displays are 4:3, 16:9, and 21:9. It is expressed as two numbers separated by a colon. The proportional comparison between a display’s width and height. A high contrast ratio is a desired aspect of any display. The ratio of the brightest color (white) to the darkest color (black) that the system is capable of producing. Senses ambient light and automatically adjusts infra-red strength based on the ambient light.
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