The LDMR100 is a high-performance 79GHz radar module specifically designed for close-range zone early warning and obstacle detection applications. Integrating antenna, RF circuit, and signal processing circuitry in a compact package, this radar sensor operates in FMCW mode with a minimal blind zone, high precision, and strong anti-interference capability. It is ideal for detecting stationary and moving targets including motor vehicles, pedestrians, and guardrails within a 12-meter range.
1. Advanced 79GHz Radar Technology
As a cutting-edge 79GHz millimeter-wave radar, the LDMR100 utilizes a 1-transmit, 3-receive (1T3R) antenna array with FMCW modulation, delivering exceptional resolution and detection accuracy. Its high-frequency 79GHz band enables superior target discrimination and stable performance across diverse environmental conditions, making it an ideal close-range radar sensor for zone protection and collision avoidance systems.
2. Key Features of This Radar Sensor
2.1 Close-Range Detection with Minimal Blind Zone
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Detection range: 0.25m ~ 12m
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Distance accuracy: ±0.1m
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Distance resolution: 0.1m
These specifications make the LDMR100 a reliable radar obstacle detection solution for applications requiring precise close-range monitoring with virtually no blind zone.
2.2 High-Precision Speed & Angle Measurement
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Speed range: -100km/h ~ +100km/h (bi-directional)
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Speed accuracy: ±0.15km/h
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Speed resolution: 0.5km/h
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Horizontal field of view: ±50° @ -6dB
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Vertical field of view: ±12° @ -6dB
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Angle measurement accuracy: ±1°
2.3 Comprehensive Target Tracking
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Maximum tracking targets: 30 targets simultaneously
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Data refresh rate: 25ms (40Hz)
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Detects both stationary and moving targets
2.4 Built-in Alert Outputs
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Buzzer output – audible warning for zone intrusion
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LED output – visual indicator for target detection
3. Robust Environmental Adaptability
The LDMR100 is built for reliable operation in demanding environments:
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Wide operating temperature: -40℃ ~ +85℃
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IP67 waterproof rating – dust-tight and protected against temporary immersion
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Strong anti-interference capability – stable performance in complex electromagnetic environments
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FMCW technology – immune to ambient light and weather conditions
4. Extensive Application Scenarios
4.1 Vehicle Zone Warning Systems
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Blind spot detection – monitoring adjacent lanes for vehicles in the blind zone
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Rear cross-traffic alert – detecting approaching vehicles when reversing
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Door open warning – alerting passengers to approaching traffic before opening doors
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Parking assist – detecting obstacles during low-speed maneuvering
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Commercial vehicle side protection – monitoring blind zones around trucks and buses
4.2 Industrial Safety & Automation
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Industrial zone protection – creating safety perimeters around hazardous machinery
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Automated guided vehicle (AGV) collision avoidance – detecting obstacles in warehouse environments
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Forklift proximity warning – preventing accidents in loading zones
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Robotic workcell monitoring – ensuring safe human-robot collaboration
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Conveyor belt jam detection – monitoring object flow and blockages
4.3 Infrastructure & Smart City
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Intelligent parking systems – detecting vehicle presence in parking spaces
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Automatic gate control – triggering barriers based on approaching vehicles or pedestrians
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Toll booth vehicle detection – monitoring vehicles at toll collection points
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Pedestrian crossing warning – alerting drivers to pedestrians in crosswalks
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Bridge and tunnel entrance monitoring – detecting oversized vehicles or obstacles
4.4 Security & Surveillance
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Perimeter intrusion detection – identifying movement in restricted zones
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Access control systems – detecting vehicles and pedestrians at entry points
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Critical infrastructure protection – monitoring approaches to sensitive facilities
4.5 Smart Home & Consumer
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Smart garage door safety – detecting obstacles before closing
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Driveway monitoring – alerting homeowners to approaching vehicles
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Automatic lighting control – triggering lights based on detected motion
5. Why Choose the LDMR100?
| Feature | LDMR100 Advantage |
|---|---|
| Technology | 79GHz high-frequency radar for superior resolution |
| Blind Zone | Only 0.25m – minimal dead zone |
| Accuracy | ±0.1m distance & ±0.15km/h speed accuracy |
| FoV | ±50° horizontal & ±12° vertical – wide coverage |
| Targets | 30 targets tracking at 40Hz refresh rate |
| Outputs | Buzzer + LED for instant alerts |
| Power | Ultra-low 1W consumption |
| Protection | IP67, -40℃ ~ +85℃ operation |
| Integration | RS485 output, easy system integration |
6. Conclusion
The LDMR100 79GHz close-range radar is a versatile radar sensor that combines high precision, wide field of view, and robust environmental adaptability in a compact, rugged package. Whether used for close-range zone warning in vehicles, radar obstacle detection in industrial automation, or perimeter security in smart city infrastructure, this 79GHz millimeter-wave radar delivers reliable, maintenance-free performance in the most demanding conditions.
For technical datasheets, sample testing, or volume pricing, please contact our sales team.
