TS SiteSentry, Руководство пользователя

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Negative numbers example
22 24 23 8 7 9 8 8 9 10 11 13 15
time
speed
The relationship at this point
is expressed as a percentage of the larger
numbers shown so in this case, 8 mph
expressed as a percentage of 23 mph is 34.7%
}
time
So circa 40% is a good starting point not forgetting that ‘timeout’
is a very powerful aspect of this tool where a good starting point is 1000 milliseconds
teSentry
User Manual of Site Sentry ANPR/Speed Camera System
19
Chapter 4
Adjusting the Radar Sensor continued
4.3.2
The Speed Negative Error Percent Tool
The aim of this tool is to begin looking at a target vehicle speed and make a rapid
comparison between the first speed readings and those after a variable number of
milliseconds and thus ignore any early COSINE spikes which might occur when the target
vehicle being tracked is in close proximity to the radar sensor - once a general speed
characteristic has been established, the Site Sentry views the reported speed with a set of
intelligent filters, in this case ‘The Negative Speed Error Percent Tool’ which looks for a
steady speed which might be followed by, a COSINE ‘spike’ of say ‘18' mph and then 10,
10, 11, 12, 11, the software has the ability to identify the rogue reading and ignore the
radar until a reset period has passed or in ths case the vehicle has passed.
click ‘save’ after changing settings