With the rapid development of rail transportation, many carriers are actively advertise via user-friendly, intelligent type of digital billboards, such as subways, high-speed rail transportation
projects. As we all know, digital billboards in the rail transport applications, the application operating environment is the biggest problem. Because of its environmental requirements are very demanding, such as high temperature, close the wind, dust, 7 * 24 hour operation and alignment of complex, and so on.
Metro rail transportation will often encounter problems as:
Fouling inside the device quite serious, and has led to cooling fan vent is clogged with dust;
Motherboard and chassis also fouling;
The whole device is not a good grounding protection;
Cabinet internal air circulation can not be formed;
It can be understood that the accumulation of dust and poor ventilation (ambient temperature is too high) when the heat caused by the machine protection.
