WAVE-22098, DTOF Laser Ranging Sensor, 360° Omni-Directional Lidar, UART Bus

The WAVE-22098 is a laser ranger sensor that uses TOF (time of flight) technology to measure the proximity of a given object inside its 12m radius. 

LD19 is mainly composed of a laser ranging core, wireless transmission unit, wireless communication unit, angle measuring unit, motor driving unit, and mechanical housing. The LD19 ranging core adopts DTOF technology to measure 4500 times each second. When it works, LD19 emits the infrared laser forward, and the laser is then reflected in the single-photon receiving unit after bouncing off the target. Thus, we get the time the laser is emitting and being received, and the gap of time is the duration of the flight. With the speed of light, we can calculate the distance. After receiving distance data, LD19 will combine them with angel value getting from angle measurement unit to comprise the points cloud data, then transmitting the points cloud data to external interface via wireless communication. Meanwhile, the external interface provides PWM to allow the motor driving unit to drive the motor. After the external control unit gets the rotational speed, it will reach to specified speed through the PID algorithm closed-loop control to ensure LD19 works stably.

SPECIFICATIONS

• RANGING DISTANCE: 0.02 ~ 12.00 m
• RANGING AVERAGE ACCURACY: ±45 mm (within 0.3 ~ 12.00m)
• SCANNING FREQUENCY: 5 ~ 13 Hz (Typ 10)
• SCANNING ANGLE: 360°
• RANGING FREQUENCY: 4500 Hz
• RESOLUTION: 15 mm
• WAVELENGTH: 895 ~ 915 nm (Typ 905)
• COMMUNICATION INTERFACE: UART @ 230400
• AMBIENT LIGHT RESISTANCE: 30 KLux
• POWER SUPPLY: 5 V
• POWER CONSUMPTION: ≈ 0.9 W
• OPERATING CURRENT: 180 mA
• WEIGHT: 47 g
• OPERATING TEMPERATURE: -10°C ~ 40°C
• LIFETIME: 10000+ hours
• DIMENSIONS (L × W × H): 54.00 × 46.29 × 34.80mm