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Equipment
Traffic lights
Traffic lights (also called traffic lights, traffic signal machines) are electronic devices used to control traffic flow and indicate the traffic status of vehicles, pedestrians or non-motor vehicles. Traffic lights are widely used in road intersections, parking lot entrances and exits, highway toll stations and other places to ensure the safety, smoothness and efficiency of traffic.
Share:
Three-color traffic lights: Including red light, yellow light, green light, the most common type, suitable for standard traffic control systems.
Two-color traffic lights: Traffic lights with only red and green lights, often used for one-way driving or specific control systems.
Countdown signal lights: Provide countdown display to indicate the remaining time for the signal light to switch, commonly seen in bus lanes or sidewalks, helping traffic participants to react in advance.
LED traffic lights: Using LED lamp beads as light sources, with the advantages of high brightness, low power consumption, long life, etc., has become the mainstream of modern traffic lights.
Smart traffic lights: Equipped with traffic flow sensors, license plate recognition systems, real-time traffic monitoring and other functions, dynamically adjust the signal cycle according to traffic conditions.
Pedestrian signal light: Equipped with special pedestrian control signals, usually red and green pedestrian icons, or "hand" and "walk" icons.
Traffic flow control: Switch red, yellow and green signal lights according to the needs of different traffic participants to ensure smooth and orderly traffic.
Pedestrian/non-motor vehicle control: Set independent signal lights for pedestrians and non-motor vehicles to ensure their safe crossing of the road.
Countdown display: Provide a countdown display before the traffic light changes to enhance the reaction time of traffic participants.
Emergency vehicle passage: Provide priority traffic signals for emergency vehicles such as fire trucks, ambulances, and police cars.
Night and weather adjustment: Automatically adjust the brightness to ensure signal visibility at night or in bad weather conditions.
Intelligent scheduling: Automatically adjust the switching cycle of the signal light according to real-time traffic flow monitoring to optimize traffic flow.
Light source type:
LED light: The most common type of light source, with high brightness, low energy consumption, long life (about 100,000 hours or more), high contrast, and can effectively increase the visual distance.
Halogen or incandescent lamps: Traditional light sources with high brightness but low energy efficiency are gradually being replaced by LED technology.
Power: The power of each signal light is about 10W to 30W, and the overall power depends on the type of light source used and the number of lamps.
Voltage: The standard operating voltage is generally 220V alternating current (AC), and there is also a 24V direct current (DC) system, which is suitable for specific scenarios (such as emergency signal lights).
Signal switching time: The switching cycle of general traffic lights is 15 seconds to 120 seconds, and the specific time is dynamically adjusted according to the traffic flow at the intersection.
Sight distance: The visible distance of the signal light is generally 200 meters to 300 meters, ensuring that traffic participants at a long distance can clearly see the light signal.
Working temperature: It can work normally between -40°C and +70°C, adapting to different climate environments.
Shell material: The shell of the signal light is usually made of aluminum alloy, steel or stainless steel, with strong corrosion resistance, wind resistance and impact resistance.
Transparent mask: The transparent mask is made of high-strength plastic or tempered glass material that is UV-resistant to prevent UV rays from causing light source attenuation.
Lighting configuration: Usually configured with one-way or multi-directional signal light faces, the common colors are red, yellow and green lights, and some products can also be equipped with white lights for night lighting.
Waterproof and dustproof: The signal light adopts IP65 or higher protection level design to ensure stable operation in different environments.
Intelligent product management
Traffic flow sensing: Through ground sensing coils, infrared sensors, radars or video monitoring and other technologies, the traffic flow is monitored, the duration of the signal light is dynamically adjusted, and the traffic flow is optimized.
Adaptive control: Automatically adjust the traffic light cycle according to real-time traffic conditions, reduce waiting time, and improve the efficiency of intersection traffic.
Remote control and management: Support remote monitoring and management, and can control the equipment, view data and diagnose faults through the traffic command center or cloud platform.
Emergency response: In the event of a traffic accident or emergency, the signal light system can automatically adjust to provide priority passage for emergency vehicles.
Intelligent timing system: Based on traffic flow data, efficient traffic signal optimization is achieved through big data analysis and artificial intelligence algorithms to reduce traffic congestion.
Urban intersections: Used for traffic signal control at intersections such as urban main roads and secondary roads to ensure traffic safety in different directions.
Highway toll stations: Used at the entrance of highway toll stations to control vehicle imports and exports and ensure the smoothness of the toll collection process.
Bridges and tunnels: Traffic flow is regulated by signal lights in special traffic environments such as bridges and tunnels.
Sidewalks and bus lanes: Set up dedicated pedestrian signal lights to ensure that pedestrians cross the road safely, especially in high-traffic areas.
Preventing traffic accidents: Signal lights are usually equipped with intelligent algorithms to effectively prevent traffic accidents and improve traffic safety at intersections.
Anti-electromagnetic interference: Modern signal lights have strong anti-electromagnetic interference capabilities to avoid interference from surrounding equipment or power equipment.
Fault alarm: The signal light system usually has a self-check function, and will automatically send an alarm to the traffic management center when a fault occurs.
Daily maintenance: Regularly check the light source, circuit, battery and other components of the signal light to ensure long-term and stable operation of the equipment. In particular, clean the lampshade to avoid dust accumulation that affects light transmission.
Environmental adaptability: Adapt to various adverse weather conditions, such as strong winds, rain, snow, low temperatures, etc.
Installation location: Ensure that there are no obstructions at the installation location of the traffic light to avoid trees, buildings or other obstacles affecting the line of sight.
Traffic coordination: Ensure that the traffic lights at adjacent intersections work together to avoid traffic chaos caused by traffic light cycle conflicts.
Regular maintenance: Regularly inspect and maintain the equipment, especially during extreme weather or holiday traffic peaks.
