The solar radar speed sign measures the speed of vehicles on the road using microwave radar. The speed measurement principle is based on the Doppler effect. The radar speed screen uses microwaves to illuminate moving vehicles and extracts the target speed signal from the returned microwave signal, converting it into the corresponding speed value. This value is then compared with the preset speed limit in the system. If the measured speed exceeds the speed limit, the speed value is displayed in red; if it is below the speed limit, it is displayed in green.

When a vehicle enters the detection area of the radar speed sign (approximately within 600 meters in front of the radar speed screen), the microwave radar automatically detects the vehicle's speed and displays it on the LED screen to promptly remind the driver to reduce their speed. This effectively reduces the occurrence of road traffic accidents caused by speeding.

Product Name: Solar Radar Speed Sign

Model: XH-FKY-001

Specifications:

Three-digit specification: 900*450*1850mm

Technical Parameters:

Operating voltage: 12V

Speed detection range: Within 255 km/h

Speed limit display mode: Displays in green when within the speed limit, and in red when exceeding the speed limit.

Applicable scope: Urban expressways, highways, suburban connecting roads, institutions, schools, and other road sections with speed restrictions.

Simultaneously applicable to 2-5 lanes.

1. Basic steps of operation:

◆ Vehicle enters the radar detection area;

◆ Microwave radar detects the vehicle's speed;

◆ Display controller controls the electronic screen to show the vehicle's speed;

◆ If multiple vehicle speeds are detected, the highest speed is displayed first;

◆ If the detected speed is below the speed limit, it is displayed in green;

◆ If the detected speed exceeds the speed limit, it is displayed in red.

2. Ambient temperature: -15°C to +60°C, humidity: 5%RH to 95%RH;

3. Radar wave parameters:

◆ Radar wave scattering angle: 12°;

◆ Speed measurement range: Approximately 50 to 180 m;

◆ Speed range: 5 to 200 km/h;

◆ Speed measurement error: ≤±3%;

4. LED display:

◆ LED display size can be customized according to design drawings; dual-color display, viewing angle: 22°;

◆ Can set the LED flashing speed threshold;

◆ Display speed: ≥188 km/h;

◆ Drivers with normal vision can recognize the display content from 100 meters away under non-speeding conditions;

5. Detection distance: 50 to 180 m;

6. Speed detection and display time: Less than 0.5 s;

7. Power supply: 220VAC, 50Hz or 12VDC

Display method: Can consist of 2 or 3-digit 7-segment digital characters (e.g., 88, 188, 888)

Power supply method: Can use 90-240V mains electricity or solar battery power.