It is generally believed that intelligent transportation system refers to the road traffic infrastructure, urban public transportation and road transport system established on the integration of information collection and processing, fusion and exchange, analysis and control, ZH to the release of information as the goal of the integration, can achieve intelligent management of transportation systems. Improve traffic management, transport efficiency and pass safety service level should be the application of intelligent transportation system construction goals, and the process of achieving such goals, to a certain extent, will promote the traditional transportation industry to the transformation of modern transportation services.
In the LED display technology related applications, the public-oriented road traffic information release display is one of the important application areas. In the public-oriented traffic information release mode, the more common display release information in daily life are road traffic guidance screen, urban traffic guidance display, parking guidance screen and road variable information signs. These different traffic guidance information release methods, according to the relevant traffic road management requirements and the actual situation of road traffic information real-time display.
Characteristics of intelligent transportation system
Intelligent transportation system is actually a road traffic information communication system, its generation and development is based on system integration, electronics, communications and information services and other different new technologies, has penetrated and applied to aviation, water transport, railroad traffic, urban traffic guidance, highways, subway rail transit field of new transportation system. The construction of intelligent transportation system can not only improve the road network capacity and road traffic information service level, but also has a broad application prospect in the field of environmental protection, promoting the reduction of tailpipe emissions and improving energy utilization efficiency.
In the process of building the intelligent transportation system, the construction and application of intelligent traffic information service system is the main content of the development of the intelligent transportation field, and the design and establishment of advanced traffic information service system for the public is the rightful meaning and development trend of the intelligent transportation system. For different types of transportation or different transportation fields, intelligent traffic information services provided by the intelligent transportation system will be focused and different.
Intelligent traffic information service system has many different traffic applications, including not only highway applications of variable information panels, variable speed limit signs, road access information service system, and urban traffic applications of traffic guidance system, traffic management information integrated service system, road traffic information release system.
In the actual application of intelligent transportation, the city or road real-time traffic information release is the main expression of intelligent traffic information services, that is, through a variety of information display equipment will be real-time traffic information release display, most of the more common and common display devices, these display devices can include LED display, LCD display, DLP display, etc.. With the continuous development of embedded technology, the intelligent traffic information display system has developed into an integrated system with scalability, multimedia technology and networked connectivity.
Characteristics of LED display
LED display technology continues to develop and progress, LED display equipment products in the field of intelligent traffic information display has been very widely used, and has now become the mainstream display mode of modern traffic information display. In the field of intelligent traffic information display, the corresponding traffic information display equipment products are required to display the current actual road traffic information according to the requirements of road traffic management and traffic guidance information released in real time, of which LED display equipment products in the actual engineering application scenarios have the following characteristics.
(1) LED display with high brightness and reasonable perspective. The release of road traffic guidance information is mainly for road traffic participants, generally for driving vehicles, so the perspective of the display products do not require high. As the consideration in the case of direct sunlight display front, display products should maintain a certain degree of clear visibility of the display content, so the display products are required to have a high brightness.
(2) LED display products can work uninterruptedly and adapt to different environmental conditions. As the workplace of traffic information induced LED display is generally outdoor conditions, the relevant external environment is more complex and variable, should take into account the work site ZG temperature and ZD temperature, rainfall, environmental humidity, air quality and extreme weather and other aspects of environmental requirements to ZDCD to ensure the stability and reliability of the traffic information display.
(3) LED display can be remotely monitored to achieve intelligent detection. Due to the actual scene of the use of demand, used to release traffic information on the installation location of the LED display is usually distributed in a large area, in this scenario, the general need for traffic management control center on the site of a single LED display products to implement the appropriate range of monitoring. The use of remote control of LED displays for routine maintenance and environmental testing will be more convenient, while also saving resources.
