Hohhot Metro is an urban rail transit system serving Hohhot, Inner Mongolia. Its first line, Hohhot Metro Line 1, was put into trial operation at the end of December 2019. With its rich and successful experience in the rail transit industry, Delta cooperated with Hohhot Metro to provide 2 sets of laser DLP large-screen display systems for the Hohhot urban rail transit project.

The entire system utilizes Delta's DVCS3 distributed image control system. The DLP large-screen system for the Line 1 dispatch center mainly displays the train signal system, the integrated monitoring system ISCS, and the video CCTV system signals. The DLP large-screen system at the emergency command center is used for the emergency command of the entire rail transit system, where the system signal of Line 1, as well as the signal of other lines, can all be displayed. The two sets of DLP large screens can help realize interconnection and interaction, for the safe and orderly operation of urban rail transit in Hohhot.

Hohhot Metro has a large-sized 4K command and dispatch monitoring screen built to ensure safety of rail transit

The Delta DLP large screen system features the following:

Connection and display for multiple application systems
It supports signals from computers with mainstream operating systems such as Windows, UNIX, Linux, etc., signals for IP digital video surveillance, and high-definition video signals for flexibility in control and management.

Large area and high-resolution display
The advantages of ultra-high resolution, large full-screen display, and integrated display of screen views for multiple application systems help realize the centralized management.

Unified display and partitioned display
The entire display screen can be divided into multiple functional areas for management via partitioned displays according to business needs and can be used as a unified ultra-high-resolution display platform to display a certain signal. 

Interconnection, sharing signal source
The signal sources between multiple DLP large-screen systems can be interconnected and shared, so that applications can be displayed on different sizes of large screens.

Capacity for system expansion
When the user upgrades the system in the future, he/she only needs to add the corresponding module and upgrade the software to meet the needs for future expansion.