Traffic Speed-Detection Radar (STJ1)交通测速雷达 (STJ1)
24 GHz fixed-angle Doppler speed radar for road enforcement and speed-triggered imaging; narrow 6°×6° beam, per-lane detection, ≤1 km/h accuracy, 99% capture rate, GB/T 21255-2007 compliant.24GHz 定角多普勒测速雷达，用于道路执法与测速触发抓拍；6°×6° 窄波束、单车道检测、精度 ≤1 km/h、捕获率 ≥99%，符合 GB/T 21255-2007 机动车测速仪标准。
What it is产品是什么
STJ1 is a fixed-angle 24 GHz CW Doppler radar designed for speed enforcement, speed-triggered cameras and smart-road monitoring. Its narrow beam isolates a single lane, making it ideal for multi-lane highways where one radar is deployed per lane.
STJ1 是一款定角式 24GHz 连续波（CW）多普勒测速雷达，面向超速执法、测速触发抓拍与智慧道路监测。窄波束仅覆盖单一车道，适用于多车道高速公路“每车道一台”的部署方式。
Key functions核心功能
- Single-lane speed detection with 6°×6° narrow beam
- Speed range 10–250 km/h, accuracy ≤1 km/h
- Vehicle capture rate ≥99%, trigger-position error ≤±0.5 m
- Fixed-point trigger output for camera / evidence system
- All-weather 7×24 operation, -40°C to +80°C
- 6°×6° 窄波束，单车道精准测速
- 测速范围 10–250 km/h，精度 ≤1 km/h
- 车辆捕获率 ≥99%，定点触发位置误差 ≤±0.5 m
- 定点触发输出，可直接联动相机/取证系统
- 全天候 7×24 工作，-40°C ~ +80°C
Suitable scenarios适用场景
- Highway / expressway speed enforcement stations
- Urban arterial over-speed monitoring
- Speed-triggered infrared / low-light camera systems
- Tunnel / bridge / accident-prone sections
- Smart-road edge-sensor networks
- 高速公路 / 快速路超速执法点位
- 城市主干道超速监测
- 测速触发红外 / 微光夜视相机系统
- 隧道、桥梁、事故多发路段
- 智慧道路边缘感知网络
Key specs关键参数
| Parameter参数 | Value数值 |
|---|---|
| Band | 24 GHz |
| Waveform | CW Doppler |
| Beamwidth | 6°×6° |
| Speed range | 10–250 km/h |
| Speed accuracy | ≤1 km/h |
| Capture rate | ≥99% |
| Trigger error | ≤±0.5 m |
| Data rate | 37 Hz |
| Typical trigger distance | 25 m (18–28 m) |
| Power supply | 9–12 V DC, <2 W |
| Interface | RS485 / RS232, 9600 bps |
| Operating temp | -40°C ~ +80°C |
| Standard | GB/T 21255-2007 |