Single-Rear Radar Detection
Safety Upgraded! Millimeter-Wave Radar Escorts Special Vehicles

Business Challenges
Special vehicles frequently encounter safety accidents due to complex working environments, including uneven terrain, muddy land, confined spaces, and harsh weather. According to the Safety Technical Code for Construction Machinery (GB/T 50369-2005), construction machinery accidents account for ~25% of total accidents, with over 70% occurring in blind zones, narrow spaces, or bad weather. Statistics show that ~30% of accidents involving special vehicles happen in blind spots during turns or reversing, with a fatality rate exceeding 90% (ILO Report, 2019). The operational risks of special vehicles demand urgent technological enhancements.
Accident Cases
Shanghai Jinshan Road Roller Accident
Jan 8, 2024: A road roller fatally crushed a worker during asphalt paving operations in Shanghai.
Yulin "3·15" Transport Accident
Mar 15, 2024: A loader at a mining company knocked over a driver during coal cleanup, resulting in fatal injuries.
Jiangxi Heavy Tanker-Car Collision
Jul 26, 2024: A collision in Xingguo County caused 4 deaths and 1 injury.

Industry Trends
With advancements in AI and sensing technologies, China’s special vehicles are rapidly adopting intelligence and autonomy. Policies promote high-precision sensors to improve safety. The 2023 China Special Vehicle Industry Report notes that millimeter-wave radar (MMWR) boosts operational efficiency by 35%, reduces blind-zone accidents from 30% to 20%, and cuts fatalities from 90% to 75%. Post-installation of MMWR anti-collision systems, accident risks drop by 40%, making MMWR a standard safety feature.
Customer Pain Points
Blind Spots: Large vehicle size limits driver visibility, especially during turns, reversing, or in tight spaces.
Complex Terrain/Weather: Variable scenarios include uneven ground, mud, confined areas, and harsh conditions (rain, fog, low light).
Lack of Specialized Radar: Existing MMWRs are poorly adapted for special vehicles.
Market Solutions: MMWR + Vision vs. Vision Only
Feature | MMWR + Vision | Vision Only |
Detection | 40m range, 120° coverage | Lacks ranging capability |
Perception | Minimal blind zones, wide long-range coverage | Large blind zones, limited long-range |
Reliability | Accurate ranging, stable tracking, high-efficiency obstacle avoidance | Prone to errors in complex environments; weak multi-target handling |
All-Weather Operation | Stable in rain, snow, fog, and low visibility (night, dust) | Fails in bad weather/low visibility |
MMWR-Based Solution: SR73F Radar
The SR73F is our self-developed 77GHz automotive MMWR. It measures distance, speed, and angle via electromagnetic waves, using MMIC technology. Compact (96×58×24mm), high-precision, and cost-effective, it supports 64-target detection, 40m stable ranging, and integrates CAN interfaces for low-speed collision prevention, reversing warnings, forward collision alerts.
SR73F Key Parameter | Specification |
Range | 0.20–40m (120°) |
Range Resolution | 0.2m |
Range Accuracy | ±0.1m |
Angular Coverage | 120° |
Angular Accuracy | ±0.5° |
Speed Range | ±18m/s |
Speed Resolution | ±0.58m/s |
Speed Accuracy | ±0.3m/s |
Antenna Channels | 2TX/4RX (8 channels) |
Cycle Time | 33ms |
Elevation Beam | 14° |
Azimuth Beam | 112° |
Power Supply | 9.0V–24VDC |
Power Consumption | 2.5W |
IP Rating | IP67 |
On-Site Equipment
1× Radar, 1× 1080P Camera, 1× Buzzer, 1× Control Box, 1× HD Display

Alert System
When a target enters the alert zone:The driver’s display shows warnings with color-coded overlays. The external buzzer sounds (5-tier alerts configurable by range).
Note: Buzzer frequency increases as targets approach; nearest zone triggers a continuous alarm.

Alert Levels
Level | Display Color | Buzzer Sound |
No Target | None | None |
Zone 5 | Green | Bi-Bi-Bi |
Zone 4 | Green | BiBi-BiBi-BiBi |
Zone 3 | Yellow | BiBiBi-BiBiBi-BiBiBi |
Zone 2 | Yellow | BiBiBiBi-BiBiBiBi-... |
Zone 1 | Red | Continuous tone |
Installation (Rear Collision Avoidance)
Customer Benefits
360° Monitoring & Blind-Spot Elimination: Multi-sensor synergy provides full coverage, eliminating traditional blind zones and reducing accidents.
Visual/Auditory Multi-Level Alerts: Precise obstacle localization with real-time warnings enables proactive driver responses.
Enhanced Driver Comfort: Reduces sudden hazards and manual operations, lowering stress and fatigue during prolonged use.
RELATED PRODUCTS
Low-Speed Obstacle Avoidance Radar SR73F