I don't know if you noticed that there are LED traffic guidance screens on important roads on the expressway . Some of these screens are monochrome screens, some are two-color screens, some are full-color screens. Usually these screens will prompt road congestion, rain and fog driving. Pay attention to safety, old information, etc., then what are the functions of these screens, and what is the classification ? LED display manufacturers for your analysis. LED traffic guidance screen First, the four functions of LED traffic-induced display 1 , high brightness, wide viewing angle Traffic-induced LED display requires high brightness and wide viewing angle ; it can automatically adjust the brightness of the display according to the ambient light intensity. Under normal circumstances, the LED traffic-inducing screen must work continuously 24 hours a day, 24 hours a day, in the case of direct sunlight, the display content can be clearly visible. Under normal circumstances, the visual display distance requirement is about 200m . 2 , display color, method and information diversification The color, mode and information of the display screen are diversified. According to the traffic guidance system and environmental requirements, personalized audio and video, video, image, text and other traffic information can be displayed in different ways, so that pedestrians in the past can accurately and accurately understand the traffic information. 3 , high degree of protection The outdoor traffic-induced LED display requires a high degree of protection, and the LED display box structure design should meet the IP65 protection level requirements. Since the LED traffic-induced display screen works under outdoor conditions, the environmental conditions are complicated, and the requirements in terms of temperature, power supply, rainproof, moisture-proof, anti-corrosion, and lightning-proof are complicated, and at the same time, high reliability is required. Take specific targeted measures. 4 , remote control In order to monitor the road surface from time to time, synchronous control is required, and synchronous control requires PC or other equipment to control it. However, installing a computer on the highway is obviously an unreasonable thing. So you need remote control. Through remote control, intelligent detection to ensure that the system displays traffic information in a safe, real-time, accurate and reliable manner. 　　 LED displays are media that deliver real-time, accurate traffic information to the public. Therefore, the system has high requirements for safety and reliability. In order to ensure the stability and reliability of the traffic-induced LED display , the selection and quality requirements of the display control system, software, LED pixel tube, integrated circuit, etc. should be stable and reliable. At the same time, traffic-induced LED displays generally work in a network environment, and public information is released, which also has high requirements for security. Second, the five major categories of LED traffic guidance screen 1 , gantry type variable display The gantry-type variable information screen is the main information transmission mode of the expressway. Because of its large size, the cross-way gantry is used as the support for the variable electronic display. The main monitoring computer implements remote control through the communication network to transmit and display each. A variety of graphic information, timely release of different road conditions and various types of traffic information on different road sections, and publicity of traffic regulations and traffic knowledge to reduce the reproducible obstruction of expressways and reduce the impact of non-recurring accidents on expressways To improve the safety of driving ; thus effectively diverting traffic and improving the efficiency of highway use. 2 , variable speed limit display ( board ) The variable speed limit LED display screens are mostly installed in some key road sections with complicated road conditions or extra large bridges, and most of them are mainly circular or single-arm suspension single-block screens. The remote control of the monitoring center computer through the communication network, transmission and display of the speed limit mileage or brief traffic information of the road section, to prompt the vehicle to drive at a speed limit, to ensure the safety of driving. 3 , mobile traffic information screen When the highway construction and maintenance, the highway competent department or construction personnel temporarily close or change lanes, it is very important to inform the road users of the traffic information. Fixed variable information boards are limited by the uncertainty of the road construction site or the distance is far away, which is not easy to function. The mobile LED traffic information screen (LED car display ) is small, flexible and light, suitable for installation on a towed motor vehicle, and can be directly displayed at the target site anytime and anywhere, making up for the shortage of the fixed variable information board. 4 , guiding finger ( warning ) screen In order to ensure the safety of highway construction workers and vehicles and other vehicles that are normally driving, highway vehicles must be equipped with eye-catching high-brightness signs to warn and guide subsequent vehicles to avoid accidents. The guiding warning LED display is the necessary equipment for the construction work vehicles on the expressway. 5 , service display The service LED display refers to the LED equipment that provides various services and publicity installed in the toll station area and service area . Through the toll plaza, service area parking lot, installed indoor LED display, timely provide real-time road conditions and service assistance for the past passengers and other information, to facilitate the travel of the passengers, improve the management level and external image of the road section.
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