Testing of ISM band at remotes for unlocking vehicles
Laen...
Failid
Kuupäev
2018
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Every modern car has a remote control for wireless unlocking. Wireless drivers for
unlocking the vehicle using frequency in the ISM bands. ISM bands are unlicensed bands. They
are usually used for industrial, medical and scientific purposes. The question is whether wireless
transmission parameters are sufficient and do not violate defined range of ISM band. Another
important aspect is the security of the wireless transmissions and any other signal interference.
The problem of interference plays an important role in ensuring the quality and safety of wireless
communications, especially when wireless networks can be found everywhere. The issues of
remote control vehicles is very important due to the resulting security of a guarded vehicle. One
of the major risks that may occur are data transmission that the signal is blocked by another signal
and the end user does not notice. In this case, does not lock the vehicle nor ensuring its securing
security system. Tests which were performed accurately determined the bandwidth of broadcast
remote control for each vehicle. Vehicles for which the tests were conducted are standard vehicles
used to frequent occurrence. These are the following types: Alfa Romeo, Hyundai, Mercedes,
Škoda and Toyota. Subsequently, the analysis was performed of transmission compared with
standard broadcast of jammers. All test drivers worked in the band ISM433. These tests clearly
demonstrated that not every manufacturer strictly observes ranges of ISM band. This may affect
traffic on surrounding licensed bands.
Kirjeldus
Article
Märksõnad
remotes, vehicle, wireless transmission, interference, measuring, articles