Among the related applications of LED display technology, public-facing road traffic information release and display is one of the important application areas. Among the ways to release traffic guidance information for the public, the more common ways to display and release information in daily life include road traffic guidance screens, urban traffic guidance displays, parking guidance screens, and road variable information signs. These different traffic guidance information release methods are displayed in real time according to relevant traffic road management requirements and the actual situation of road traffic information.
Characteristics of Intelligent Transportation Systems
Intelligent transportation systems are actually a kind of road traffic information and communication system. Its emergence and development are based on system integration, electronics, communications, information services and other new technologies. It has been penetrated and applied to new transportation systems in the fields of aviation, water transportation, railway transportation, urban traffic guidance, highways, subway rail transportation. The construction of an intelligent transportation system can not only improve the traffic capacity of the road network and the level of road traffic information services, but also has broad application prospects in the field of environmental protection, reducing tail gas emissions and improving energy efficiency.
In the process of building intelligent transportation systems, the construction and application of intelligent transportation information service systems are the main content of the development of the field of intelligent transportation. Designing and establishing advanced transportation information service systems for the public is the proper meaning and development trend of intelligent transportation systems. For different types of transportation modes or different transportation fields, the intelligent transportation information services provided by the intelligent transportation system will have different focuses and differences.
Intelligent traffic information service systems have many different traffic application fields, including not only variable information boards, variable speed limit signs, road traffic information service systems for highway applications, but also traffic guidance systems for urban traffic applications, traffic management information comprehensive service systems, road traffic information external release systems, etc.
In the field of practical application of intelligent transportation, the release of real-time traffic information on 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 general and common display devices. These display devices can include LED displays, LCD displays, DLP displays, etc. With the continuous development of embedded technology, intelligent traffic information display systems have developed into integrated systems with scalable functions, multimedia technology, and networked connections.
Characteristics 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 now become the mainstream display method of modern traffic information display. In the field of intelligent traffic information display, corresponding traffic information display equipment products are required to release and display the 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) LED display screen has high brightness and reasonable viewing angle. The release of road traffic guidance information is mainly for road traffic participants, generally driving vehicles, so the viewing angle of the display product is not high. Since the display content of the display product should maintain a certain degree of clear visibility when sunlight directly hits the front of the display screen, the display product is required to have a high brightness.
(2) LED display products can work continuously and adapt to different environmental conditions. Since the workplaces of traffic information induced LED displays are generally under outdoor conditions, and the related external environment is relatively complex and changeable, environmental requirements such as the maximum and minimum temperatures of the workplace, rainfall, ambient humidity, air quality, and extreme weather should be taken into consideration to ensure the stability and reliability of traffic information display to the greatest extent.
(3) LED display can be remotely monitored to achieve intelligent detection. Due to the usage requirements of actual scenarios, the installation locations of LED displays used to release traffic information are usually distributed over a large area. In this scenario, the traffic management control center is generally required to implement appropriate monitoring of individual LED display products on site. It is more convenient to use remote control for daily maintenance and environmental testing of LED displays, and it also saves resources.
ANNA