Recently, the Giant Ocean Ultra HD Display Screen at a certain rail transit center has been officially put into use. Its unique curved design perfectly blends the utilization of space with the smoothness of the image, complementing each other.
In recent years, major cities in China have been vigorously promoting the construction of urban rail transit. However, the complex types, diverse forms, large quantities, information loss, poor or untimely communication, as well as the widespread phenomenon of "information fragmentation and information islands" generated throughout the life cycle of urban rail transit, have greatly constrained the efficiency of construction management. However, existing information management methods generally only serve as auxiliary management tools and cannot achieve fundamental improvement in management level. VATION Juyang's COB display system is highly recognized by users for its dust-proof, waterproof, and consistent features.
The Juyang ultra high definition large screen adopts multiple sets of VATION Juyang COB LED display systems, using COB integrated packaging technology, which has technical advantages such as high reliability (extremely low unboxing defect rate, long fault free use time), high contrast, high color gamut, and high refresh rate. This rail transit large screen adopts a unique curved design, perfectly presenting a smoother, faster, and more colorful display effect, providing ultra high definition display services.
In addition, the Juyang COB ultra high definition visualization system can also be used to build a digital command and control center for urban rail transit, displaying important information such as train operation, power, environmental control, automatic ticketing, video images, and operation organization in real time, comprehensively controlling the operation status of the rail transit system.
Display by region according to user needs:
Area 1 mainly summarizes comprehensive information on train operation, electricity, passenger flow, video, major events, etc. of the line network, and can display ATS information of multiple lines simultaneously. If necessary, it can switch to emergency display screens, such as line operation, traction power supply, emergency facility distribution, etc. involving emergency events. Need to implement the calling of different modes and scene images.
Area 2 mainly uses network video surveillance display screens to monitor operational video surveillance information and public security video surveillance information. Dispatchers need to monitor the station, passenger flow inside the train, and passenger boarding and alighting in real time to ensure safe, fast, and timely operation; In case of emergency situations such as fires, counter-terrorism, natural disasters, etc., provide real-time images of the incident site to relevant personnel for easy command of on-site rescue and passenger evacuation.
Region three is mainly composed of network power dispatch splicing display screens, which display professional systems such as environmental control systems, power supply systems, disaster prevention systems, and main control systems. The emergency command display area mainly displays images related to emergency events such as line operation, traction power supply, and emergency facility distribution. Other display areas are required to provide real-time image information of the scene of the emergency event.
information sharing
Integrate and schedule multiple CCTV video signals, RGB signals, computer information, and digital streaming media information. During normal business applications, each display screen will independently display its main scheduling and monitoring information; When dealing with emergency situations, each group of spliced display screens needs to flexibly schedule display information according to different scenarios.
Scene display
Various types of large screens need to display relevant video information in multiple modes, which can be adjusted to achieve different display states and modes such as monitoring mode, emergency mode, and visit mode in multiple places. Includes arbitrary adjustment of signal source size, position, and layer state.
Overall application environment
Command requires real-time signal display, fast switching, and a large screen display subsystem with good stability, reliability, maintainability, support, high testability, high safety, strong environmental adaptability, and strong electromagnetic compatibility. The entire system should have access to professional systems, vehicle depots, police stations, train monitoring and other monitoring information to achieve interconnectivity between various regions. The dispatching command hall can integrate the monitoring platforms of multiple control centers to monitor the monitoring images, traffic dispatching information, master control system information, etc. of various places, so as to realize the centralized allocation of resources.
VATION Juyang COB third-generation+fully inverted product, using Terrilon pure black coating, has the following advantages:
01
Inverted COB eliminates the wire bonding process, simplifies the production process, and effectively solves the problems of wire virtual soldering and broken wires, as well as metal migration issues in chip assembly, greatly improving reliability.
02
The active layer is closer to the substrate, shortening the heat flow path from the heat source to the substrate and having lower thermal resistance.
03
Inverted chip area occupies a smaller proportion on the PCB board, while the substrate duty cycle increases, resulting in a larger light output area, which can present a darker black field, higher brightness, and higher contrast. Higher luminous efficiency, significantly reduced screen surface temperature, and better up close experience.
04
The thickness of the encapsulation layer is further reduced, which can completely solve the stubborn problem of colored and dark lines between the formal COB modules.
05
20000:1 ultra-high contrast, 2000CD/㎡ peak brightness, blacker black field, brighter brightness, and higher contrast. Supports HDR digital imaging technology, with fine and perfect static and high dynamic image quality.
06
It has good viewing angle and side view display uniformity, no color cast under large viewing angles, and can achieve a viewing effect of nearly 180 degrees.
07
Inverted COB does not require wiring, and its physical space size is only limited by the size of the light-emitting chip. It breaks through the point spacing limit of the regular chip and is the preferred choice for products with a point spacing of 1.0 or less.
08
The fully inverted light-emitting chip reduces power consumption by 50% under the same brightness conditions. Unique heat dissipation technology, under the same brightness, the surface temperature of the screen is 10 ℃ lower than that of conventional LED display screens, making it more suitable for near screen experience applications.
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