LD-05D Safety Laser Scanner: Pallet Shuttle Cart Obstacle Avoidance Solution
LD-05D Safety Laser Scanner: Pallet Shuttle Cart Obstacle Avoidance Solution
The pallet shuttle cart, a type of electric logistics equipment, is widely used in large warehouses and logistics parks for material transportation. It improves transportation efficiency and reduces costs, but also presents certain safety risks during operation. To ensure the safety of personnel and the proper functioning of equipment, the following solution is recommended
Solution:
A safety laser scanner, specifically the LD-05D, should be installed at the front of the pallet shuttle cart. The scanner is configured with pre-defined warning zones by the user. When the LD-05D detects an object entering this zone, it immediately outputs an alarm signal. The system processing the signal then takes action to avoid obstacles, thus protecting both personnel and property.
2D TOF Safety Laser Scanning Factory On-Site Obstacle Avoidance Testing
Our customer installed the LD-05D safety laser scanner on their cargo transport equipment. According to the video feedback from the customer, the laser scanner is mounted on the front side of the equipment. When an object or person is detected within the preset range, it sends a signal to the system, causing the equipment to stop operating.
Working Principle of the LD-05D Safety Laser Scanner
The LD-05D is a TOF (Time of Flight) laser scanner. Its core components include optics, mechanics, circuits, and software. During operation, the laser scanner emits a beam that reflects off objects. The receiver detects the reflected light signal, and the time analysis module measures the time difference between the emitted and reflected light. By multiplying this time by the speed of light, the distance to the object is calculated, allowing the position of the object to be determined, as illustrated in the diagram:
Diagram of the Laser Scanner Distance Measurement Principle
Method for Calculating Object Dimensions
Formula for Calculating Object Dimensions
Suppose the distances measured by the scanner are d1, d2, …, d6, representing the distances between the object and the laser scanner. The angular difference is the angular resolution of the LD-05D.
The formula for calculating the object's dimensions is:
W = (d2 + d3 + d4 + d5) * θ
Note:
θ = (2π/360) * angular resolution
The angular resolution is related to the scanner's rotation speed and can be set by the customer through the software.
Recommended Safety Laser Scanner
Laser Source: 905 nm (Class I)
Scanning Angle Range: 270°
Scanning Frequency: 15 Hz / 30 Hz
Angular Resolution: 0.1° / 0.3°
Operating Range: 0.05 m ~ 5 m
Detection Range at 10% Object Reflectivity: 2.5 m
Self-Learning Function: Automatic environmental scanning and region generation
Recognizable Object Shapes: Almost any shape
Number of Zone Groups: 16 zone groups, each containing 3 zones
Measurement Error: ±30 mm
Housing Color: Yellow
Enclosure Protection Rating: IP65
Weight: 150 g (excluding cable)
Operating Temperature: -10°C ~ 55°C
Dimensions (L x W x H): 50 mm x 50 mm x 76 mm
