Led display application system solution

LED Display Application System Solution

Release date: 2017-11-21 Source: Foreign station Sharing:

Chapter 1 Application System Design

1.1.1 System Function

The system is designed to support multi-level business operations based on different functions. It includes 15 main functional modules such as screen information release, real-time traffic updates, and event notifications. Each module performs specific tasks and supports the overall workflow of the system.

Function category

Sub-function requirement

Functional description

Traffic guidance software

Information processing release module

The system detects traffic conditions at various points using a preset template and generates display-ready traffic state information. This data is stored in a database and can be published through multiple methods, including manual or automatic input from external systems.

Security management module

Data encryption, transmission encryption, and access control are used to ensure system security. Different user groups have distinct access rights, with only top users able to assign permissions to others.

System maintenance module

This module automatically handles alarms and logs user activity, display content, and modifications. It also protects the LED display interface from surge voltages and stores historical data for retrieval when needed.

Interface conversion module

It connects the system with other platforms using different interface modules and facilitates communication between the display and external systems.

Communication management module

It interprets the VMS communication protocol, focusing on the physical, data link, and application layers for efficient data exchange.

Calculation software module

This module processes raw data and generates displayable information, supporting both data processing and decision-making sub-modules.

Configuration management and monitoring module

It allows users to configure static information, adjust display parameters, monitor equipment status, and manage power and lighting settings remotely.

  • Overall function

  • 1.1.1.1 Basic functions

The system meets the following basic requirements:

  • The display operates in an outdoor environment, while the equipment room is in a controlled setting. The system must run continuously 24/7, ensuring all components function reliably in real-world conditions.
  • Equipment and design incorporate advanced technology with a 5-year service life. All devices are new and meet product specifications.

  • Information release function

The system's core function is to deliver traffic guidance information through three methods:

  • Curing information display: Static information is stored on the display for use during outages. It can be updated via the control center or laptop.
  • Manual induction display: Operators can manually send messages to the display, which can be set to show immediately or at scheduled times.
  • Automatic induction display: Real-time traffic data triggers automated message generation and display through the system.

  • Control function

Due to the nature of outdoor displays, strict control is essential. The system supports three levels of control: main command center, sub-center, and field. In case of communication failure, the display switches to stored information and can be managed locally.

  • System Control Management Software Functions

The system features monitoring, self-diagnosis, fault protection, security, and alarm functions to ensure reliable operation.

  • System monitoring and control functions

Users can view the display map, manage power, check statuses, and pre-set information delivery to specific screens.

  • System self-diagnosis function

The system checks communication ports, drive circuits, and power supply status automatically. It reports any anomalies for timely resolution.

  • System failure protection

High-quality components and protective measures enhance resistance to electromagnetic interference and lightning strikes. Surge protection is also implemented for the transmission interface.

  • Overall function of the outdoor display

The outdoor display is built to withstand harsh weather conditions and operates efficiently in extreme temperatures. It has proper grounding, anti-interference measures, and adjustable brightness for optimal visibility day and night. Remote control and automatic fan regulation help maintain performance under varying conditions.

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