Raspberry Pi Lidar 360° Laser Radar Scanner Lidar Sensor Distance Detection

Description

Raspberry Pi Lidar 360° Laser Radar Scanner Lidar Sensor Distance Detection
Lidar Sensor Scanner Laser Distance: Sensor 360° Lidar 4500Hz Ranging Frequency Sensor with Stand Cooling Fan for Ar duino Raspberry Pi Robot Mapping Ranging Avoid Obstacles Remote Control
Core Technology:
LD19 lidar scanner adopts DTOF technology, 30mm ranging accuracy, strong anti-interference ability, stably capture high-precision, low-noise, high-confidence depth information, can realize indoor and outdoor high-frequency and high-precision distance measurement and accurate mapping
Powerful function:
LD19 lidar scanner rotates clockwise at the ranging core to realize omnidirectional scanning and ranging detection of the surrounding environment, thereby obtaining various types of raw data collection of the surrounding environment. Including laser scan data, video image data, point cloud data, etc
Long Distance Measuring:
4500Hz ranging frequency, 5-13 scanning frequency, ranging up to 12 meters. Lidar sensor can perceive more distant environmental information, ensuring the equipment's large-area cruising and mapping capabilities
Laser Safety FDA Class I Certification:
Lidar sensor use low-power infrared lasers as the emission light source, the laser completes the emitting action in a very short time, which complies with FDA class. Greatly ensure the safety of humans and pets
Widely Application:
As the eyes of the machine, you can use lidar scanner for mapping, altimetry, obstacle avoidance, tracking, ranging and other usage. Also, you can use the lidar with the included stand and fan with the Raspberry Pi to achieve programming learning education and other purposes
About LD19 Lidar Scanner:
- LD19 lidar scanner is mainly composed of laser ranging core, wireless telex unit, wireless communication unit, angle measurement unit, motor drive unit and mechanical casing.
- The LD19 lidar scanner uses DTOF technology, which can measure 4500 times per second.
Each time the distance is measured, the LD19 emits an infrared laser forward, and the laser is reflected to the single-photon receiving unit after encountering the target object.
From this, we obtained the time when the laser was emitted and the time when the single-photon receiving unit received the laser.
The time difference between the two is the time of flight of light, and the time of flight can be combined with the speed of light to calculate the distance.
- After obtaining the distance data, the LD19 lidar scanner will combine the angle values measured by the angle measurement unit to form point cloud data, and then send the point cloud data to the external interface through wireless communication.
At the same time, the external interface provides PWM to make the motor drive unit drive the motor.
After the external control unit obtains the speed, the PID algorithm is closed-loop controlled to the specified speed, so that the lidar scanner can work stably.
Data Interface:
- Communication Interface: Lidar Scanner uses the ZH1.5T-4P 1.5mm connector to connect with external systems for power supply and data reception.
- Coordinate System:
The lidar uses a left-handed coordinate system, the rotation center is the coordinate origin, the front of the sensor is defined as the zero-degree direction, and the rotation angle increases in the clockwise direction.
Protocol:
- Packet Format: Lidar uses one-way communication. After stable operation, it starts to send measurement data packets without sending any instructions.
- Data Analysis:
Each measurement data point consists of a 2-byte dista
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