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Tel:+86 13714507157
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Two kinds of car black box seconds leak case

  • Author:tracy
  • Source:http://www.tigloncn.com
  • Release on :2014-12-15

    Most of the car video recorder there is leakage second phenomenon, so the key to time difficult to obtain evidence.
   
Leakage second two cases:
  
The first is a car dvr black box generally with automatic cover function, so you need to shoot down the video into smaller segments, usually ranging from 1-5 minutes. Car black box dvr as not to force the processor to write and read speed is slower, it may result in leakage phenomenon in two seconds of video convergence time, this phenomenon leak seconds, we can through a simple test to observe, the car black box camera shooting against the stopwatch, will produce two videos, over a period of time after the beginning of the video display, minus the period of time before the end of the video shows, and see how much difference is basically able to determine whether there is a this leakage phenomenon seconds.

   The second leak seconds, based on the number of frames for the car black box hd, we all know that all of the video screen is a still image from a web, as long as more than 24 per second continuous playback will let us produce a dynamic illusion of the screen, if the higher number of frames, the smoother the video screen, the market black box camera usually 30 frames per second, but it does not rule out a lot of businesses vacuity, we assume that a poor car camcorder 10 frames per second, then the highway above the 120 km / h, which is 33.33 m / s, so that every 3.3 Mixing into one, but usually in a car accident scene, was driving a 3.3 m, will miss many of the key screen.
  
The first leak seconds is the most common, is relatively well recognized, there is a second general assumption is rarely encountered.