Motion Detection on a Car Camera Explained.
Most car cameras (pretty much all infact) come with "motion detection" and this can often cause the owners some confusion as to how it works when it appears that their camera is not functioning correctly. Here's an explanation of what this feature is, what it does and how it is best used to help you get the most from your dash cam, whichever model you have chosen.
Primarily, "motion detection" is a function of the camera, but it can also be seen as a sub-function of what is known as parking mode on some cams, whereby parking mode may (and almost always does) utilise the function of "motion detection" whilst the car is stationary. This is a very important consideration, as we can immediately see that the detection of movement is tied in very closely with being parked!
With the above in mind, it is first worth solidifying that motion detection is strictly to be used in a parked car. This applies without exception, irrespective of the make or model of the dashcam. The reason for this is that it will only record if something is moving within its field of view. When nothing moves, the camera goes into "watch" mode and stops recording. This is no good if you are sat at traffic lights waiting to move off and someone hits you from behind as the camera will not be recording anything. (Bear in mind that being hit from behind with only a front view camera recording will still give you evidence of fault).