What are the functions and classification of LED traffic guidance screens?

In the information age and the rapid development of intelligent transportation systems, in the field of transportation, the release of information has become an important service content. What are the roles of LED traffic guidance screens and what are the specific classifications?

4 functions of LED traffic guidance display

1. Traffic guidance LED display requires high luminous brightness and wide viewing angle; the luminous brightness of the display can be adjusted automatically according to the ambient light intensity. Under normal circumstances, the LED traffic guidance screen must work 24 hours a day, 24 hours a day, and the display content can be clearly seen under direct sunlight. Normally, the visual distance of the display screen is about 200m.

2. The colors, methods and information of the display screen are diversified, and personalized audio and video, video, image, text and other traffic information can be displayed in different ways according to the traffic guidance system and environmental requirements, so that passing pedestrians can understand traffic information in real time and accurately .

3. Outdoor traffic guidance LED display requires high protection level, and the structure design of the LED display box should meet the IP65 protection level requirements. Because LED traffic guidance displays work in outdoor conditions, the environment is complicated, and the requirements for temperature, power supply, rain, moisture, corrosion, and lightning strikes are complex, and at the same time, high reliability is required. Take specific targeted measures.

4. Remote control and intelligent detection ensure that the system displays traffic information in a safe, real-time, accurate and reliable manner.

Traffic guidance LED display is a media that releases real-time and accurate traffic information to the public. Therefore, its system has high requirements on safety and reliability. In order to ensure the stability and reliability of the traffic-inducing LED display, the selection and quality requirements of the display control system, software, LED pixel tube, integrated circuit, etc. should be based on stability and reliability. At the same time, traffic-inducing LED display screens generally work in a network environment and publish public information, which also has high requirements for security.

5 categories of LED traffic guidance screens

1. Gantry variable display

The gantry-type variable information screen is the main way of information dissemination on the highway. Due to its large size, the cross-road gantry is generally used as the support for the variable electronic display screen. The main monitoring computer implements remote control through the communication network to transmit and display various Various graphic information, timely release different road conditions and various types of traffic information to different drivers, and promote traffic laws and traffic knowledge to reduce recurring blockages on expressways and reduce the impact of non-recurring accidents on expressways , The purpose of improving driving safety; thereby effectively channeling traffic and improving the efficiency of highway use.

2. Variable speed limit display (board)

Variable speed limit LED display screens are mostly installed in the key sections of some roads with complex road conditions or extra large bridges, and most of them are circular or single arm suspended single block screens. The computer of the monitoring center implements remote control through the communication network, transmits and displays the speed limit mileage or short traffic information of the road section, and plays a role of prompting the vehicle to drive at the speed limit and ensuring driving safety.

3. Mobile traffic information screen

During highway construction and maintenance, highway authorities or construction personnel temporarily close or change lanes. It is important to inform road users of traffic information. The fixed variable information board is limited by the uncertainty of the road construction site or the distance is far away, and it is not easy to exert its effect. The mobile LED traffic information screen (LED car display screen) is small, flexible and light, suitable for installation on a trailer-mounted motor vehicle, and can be directly displayed on the target site anytime, anywhere, making up for the shortcomings of the fixed variable information board.

4. Guide finger (warning) display screen

In order to ensure the safety of highway construction workers and vehicles and other vehicles that are driving normally, highway vehicles must be equipped with eye-catching high-brightness signs to warn and guide other vehicles to avoid accidents. The warning LED display screen is precisely the equipment of the construction vehicles on the highway.

5. Service display

Service LED display refers to the LED equipment installed in the toll station area and service area to provide various services and publicity. Provide various information such as real-time road conditions and service assistance to passing passengers and crews through toll plazas, parking lots in service areas, and various LED displays installed indoors to facilitate the travel of passengers and crews, and improve the management level and external image of road sections .