1.Key Technical Specifications Detection medium: Solid obstacles Detection range: Adjustable 2cm–300cm Sensing mode: Ultrasonic / infrared optional Operating temperature: -20℃ ~ +70℃ Detection accuracy: ±1cm ~ ±3cm Response time: ≤20ms Supply voltage: 3.3–12VDC Output signal: Digital switch signal / analog distance signal Protection grade: IP54, dustproof and splash resistant Service life: Long-term continuous sensing without frequent maintenance Structural feature: Small integrated module, easy embedded installation 2.Core Function Real-time scan surrounding environment and judge the distance between equipment and obstacles. Send trigger signals to the control system when obstacles enter the warning range. Support automatic deceleration, steering or emergency stop to avoid collision damage. Adapt to indoor and semi-outdoor working environments with stable anti-interference performance. Mini modular design can be arranged in multiple groups for all-round surrounding detection. 3.Working Principle Two mainstream detection principles: ultrasonic and infrared ranging: Ultrasonic type: The probe transmits sound waves, which bounce back after hitting obstacles; the chip calculates distance according to echo time difference. Infrared type: Infrared light is emitted, and the receiving end judges obstacle distance based on reflected light intensity. The internal processing unit converts distance information into standard electrical signals for mainboard identification and logical control. 4.Application Scope Applicable Equipment AGV robots, sweeping robots, unmanned trolleys, smart access control, automated production lines Matching Components Mobile robot main control board, automatic travel drive module, safety control unit Application Scenarios AGV warehouse automatic obstacle avoidance, household cleaning robot path planning, unmanned vehicle safety ranging, assembly line material barrier detection, intelligent elevator anti-collision monitoring