It is generally believed that intelligent transportation system refers to the integration of information collection and processing, fusion and exchange, analysis and control established on road transportation infrastructure, urban public transportation and road transportation systems, and finally the integration of information release as the goal. Yes, a transportation system that can realize intelligent management. Improving traffic management, transportation efficiency and traffic safety service level should be the application goal of intelligent transportation system construction, and the realization of this goal will promote the transformation of traditional transportation industry to modern transportation service industry to a certain extent.
Among the related applications of LED display technology, public-facing road traffic information release display is one of the important application areas. Among the public-oriented traffic guidance information release methods, the more common ways to display and release information in daily life include road traffic guidance screens, urban traffic guidance display screens, parking guidance screens, and road variable information signs. These different traffic guidance information release methods are displayed in real time according to the relevant traffic road management requirements and the actual situation of road traffic information.
Characteristics of Intelligent Transportation System
Intelligent transportation system is actually a kind of road transportation information communication system. Its generation and development are based on other different new technologies such as system integration, electronics, communication, information services, etc. It has been penetrated and applied to aviation, water transportation, railway transportation, A new type of transportation system in the field of urban traffic guidance, highways, and subways. The establishment of intelligent transportation systems can not only improve the traffic capacity of the road network and the level of road traffic information services, but also have broad application prospects in the field of environmental protection, reducing exhaust emissions and improving energy efficiency.
In the process of building the intelligent transportation system, the construction and application of intelligent transportation information service system is the main content of the development of intelligent transportation field. The design and establishment of an advanced transportation information service system for the public is what the intelligent transportation system should have. Yihe development trend. Facing different types of transportation methods or different transportation fields, the intelligent transportation information services provided by intelligent transportation systems will have different emphasis and differences.
Intelligent traffic information service systems have many different traffic application fields, including not only variable information boards, variable speed limit signs, and road traffic information service systems for highway applications, but also traffic guidance for urban traffic applications. System, comprehensive service system of traffic management information, external release system of road traffic information, etc.
In the field of practical applications of intelligent transportation, the release of real-time traffic information in cities or roads is the main form of intelligent traffic information services, that is, the real-time release and display of traffic information through various information display devices, most of which are relatively common and common displays. Devices, these display devices can include LED displays, LCD displays, DLP displays, etc. With the continuous development of embedded technology, the intelligent traffic information display system has developed into an integrated system with expandable functions, multimedia technology, and networked connections.
Features of LED display
Due to the continuous development and progress of LED display technology, LED display equipment products have been widely used in the field of intelligent traffic information display, and have become the mainstream display method of modern traffic information display. In the field of intelligent traffic information display, it is required that corresponding traffic information display equipment products can release and display current actual road traffic information in real time according to the requirements of road traffic management and traffic guidance information. Among them, LED display equipment products have the following characteristics in actual engineering application scenarios :
(1) The LED display has high brightness and reasonable viewing angle. The release of road traffic guidance information is mainly for road traffic participants, generally for driving vehicles, so the viewing angle of the display product is not high. Since it is considered that the display content of the display product should maintain a certain degree of clear visibility when the sun is directly on the front of the display screen, the display product is required to have a higher brightness.
(2) LED display products can work uninterruptedly and adapt to different environmental conditions. Since the workplaces where traffic information induces LED displays are generally outdoor conditions, the related external environment is more complex and changeable, and the highest and lowest temperature, rainfall, environmental humidity, air quality, and extreme weather of the workplace should be considered. Environmental requirements to ensure the stability and reliability of traffic information display to the greatest extent.
(3) The LED display can be monitored remotely to realize intelligent detection. Due to the actual use requirements of the scene, the installation positions of the LED display screens used to release traffic information are usually distributed in a larger area. In this scenario, the traffic management control center is generally required to implement the appropriate implementation of a single LED display product on the spot. Process monitoring. It is more convenient to use remote control to perform routine maintenance and environmental testing of the LED display, and it also saves resources.
