Research Article
A Low-Cost Vehicle Anti-Theft System Using Obsolete Smartphone
| Require: NSM: select most matched segment candidates within error region;MotionDetect: detect vehicle motions from sensor readings. | | Ensure: A sequence of road segment. | | (1) | if MotionDetect finds Curve then | | (2) | set a segment ; | | (3) | call NSM for , get ; | | (4) | for ; ; do | | (5) | calculate velocity of with CurveLength; | | (6) | calculate distance of with CurveLength; | | (7) | set values; | | (8) | if equals then | | (9) | return | | (10) | end if | | (11) | end for | | (12) | else | | (13) | if MotionDetect finds Two-Turns then | | (14) | set a segment ; | | (15) | call NSM for , ; | | (16) | for ; ; do | | (17) | calculate velocity of with Distance | | (18) | -BetweenTurns; | | (19) | calculate distance of with Distance | | (20) | -BetweenTurns; | | (21) | set values; | | (22) | if equals then | | (23) | return | | (24) | end if | | (25) | end for | | (26) | end if | | (27) | else | | (28) | call NSM to get a most matched ; | | (29) | end if |
|
