Application of LED display technology in the field of intelligent transportation
It is generally believed that the intelligent transportation system refers to the integration of information collection and processing, fusion and exchange, analysis and control, and finally the goal of information release, which is established on the road transportation infrastructure, urban public transportation and road transportation system. , which can realize intelligent management of transportation system. 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-oriented 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 of displaying and releasing 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.
Features of Intelligent Transportation System
The intelligent transportation system is actually a road traffic information communication system. Its generation and development are based on other different new technologies such as system integration, electronics, communication, and information services. At present, it has penetrated and applied to aviation, water transportation, railway transportation, A new type of transportation system in the fields of urban traffic guidance, expressways, and subway rail transit. The construction of intelligent transportation system can not only improve the traffic capacity of the road network and the service level of road traffic information, but also have broad application prospects in the field of environmental protection, reducing exhaust emissions and improving energy efficiency.
In the process of building an intelligent transportation system, the construction and application of an intelligent transportation information service system is the main content of the development of the intelligent transportation field. righteousness and development trends. For different types of transportation modes or different transportation fields, the intelligent traffic information services provided by the intelligent transportation system will have different emphasis and differences.
The intelligent traffic information service system has many different traffic application fields, including not only variable information boards, variable speed limit signs, road traffic information service systems, etc. in highway applications, but also traffic guidance in urban traffic applications. system, traffic management information integrated service system, road traffic information release system, etc.
In the practical application field of intelligent transportation, the release of real-time traffic information of cities or roads is the main form of intelligent traffic information service, 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 equipment, 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 scalable functions, multimedia technology and network connection.
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, the 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) The LED display has high brightness and reasonable viewing angle. The release of road traffic guidance information is mainly for participants in road traffic, generally 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 under the condition of direct sunlight on the front of the display screen, the display product is required to have high brightness.
(2) LED display products can work continuously and adapt to different environmental conditions. Since the workplace of the traffic information induced LED display is generally outdoor, the related external environment is more complex and changeable, and the highest and lowest temperature, rainfall, ambient humidity, air quality and extreme weather in the workplace should be considered. Environmental requirements, in order to maximize the stability and reliability of traffic information display.
(3) LED display can be monitored remotely to realize intelligent detection. Due to the use requirements of the actual scene, the installation positions of the LED display screens used to publish traffic information are usually distributed in a large area. program monitoring. It is more convenient to use the remote control method to carry out daily maintenance and environmental inspection of the LED display screen, and it also saves resources.
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