Buses in Kuala Lumpur, Malaysia
Back to 2015, ASSA Tech, one of Betvis’s partners in Malaysia got a bus digital display project from Kuala Lumpur and decided to do the job together with Betvis. A few months earlier than that, Betvis just completed a similar project for Azerbaijan on-bus display system, so what ASSA did was basically copy the success to another Asia city.
Although it might sound easy to copy a proven system to a new place, the actual process was still pretty complicated from planning to operation. For starter, electric power on bus is not always stable enough for normal digital display devices. Especially when a bus engine just starts off or shuts down, instant electric current varies really quickly in a few minutes and could put both LCD panel and motherboard into risk. To avoid this threat, a dedicated bus power on/off delay regulator was connected with the screen power. When the bus starts off, the regulator will delay the screen boot time for 3 minutes until the electric gets stable. Similarly, when the bus engine just shuts down, the regulator will continue to supply stable electric power long enough for the screen to safely shutdown.
Another issue ASSA came across was the installation method, for ceiling mounting need to ensure 100% security under intense bump and jolt during the driving. What Betvis provided was a shake-proof mounting bracket adhering to the screen rear. The bracket allows the screen orientation to be adjusted while at the same time guarantees the stability of the screen under any strong shock happening during driving.