Laser distance modules, often referred to as LiDAR (Light Detection and Ranging) or laser rangefinders, are being increasingly integrated into UAV (Unmanned Aerial Vehicle) pods for a variety of applications.
The operational principle of laser distance modules is to utilise laser beams to measure the distance between the UAV and a target object or the ground. The fundamental principle is to emit a laser pulse in the direction of the target and then measure the time taken for the pulse to be reflected back to the sensor. The time-of-flight measurement is then used to calculate the distance based on the speed of light.
1. Integration into UAV Pods
1)Mounting The pod provides protection for the module from environmental factors and ensures stable operation.
2)Power Supply
The module is connected to the UAV's power system. UAVs are equipped with batteries that provide power to the various components, including the laser distance module.
3)Data Processing
- The module transmits distance data to the UAV's onboard computer. The computer processes the data in real time, facilitating a range of applications including navigation, mapping and obstacle avoidance.
2. Applications
Navigation and Collision Avoidance
The laser distance module enables the UAV to navigate safely by detecting obstacles in its path, allowing the UAV to take evasive actions to avoid collisions.
Mapping and Surveying
The laser distance module can be used to create detailed 3D maps by scanning the ground or objects below. This is particularly useful in topographical mapping, forestry, agriculture, and urban planning.
Altitude Measurement
The module provides precise altitude measurements, which are crucial for applications requiring stable flight at specific altitudes, such as crop monitoring or infrastructure inspection.
Terrain Following
The Terrain Following module is designed for use in missions that require flying close to the ground or over uneven terrain. It enables the UAV to maintain a consistent altitude relative to the ground, ensuring optimal performance in these challenging environments.
3. The advantages of laser distance modules are as follows:
Precision: Laser distance modules offer high precision, which is essential for accurate mapping and safe navigation.
Speed:The capacity to take rapid measurements enables real-time data processing.
Versatility: These modules can be used in a variety of environmental conditions, including low light and varied terrains.
4. One challenge is the power consumption of these modules, which can affect the UAV's battery life.
Weight: The addition of the module and its housing increases the weight of the UAV, which can impact flight performance and endurance.--Meskernel TS1224 compact design and light weight is actually to solve this problem.
Cost: The inclusion of high-precision laser modules can result in a significant increase in the overall cost of the UAV system.
5. Examples of UAVs with laser distance modules include:
Survey drones: UAVs used in surveying often come equipped with LiDAR for creating detailed 3D maps.
Agricultural drones are equipped with laser distance modules to monitor crop health and map fields.
Inspection Drones: These drones are used in infrastructure inspection, measuring distances to structures for detailed analysis.
Mainstream UAV pod applications on the market today include 3-light pods as ‘Thermal imaging camera, 10x continuous zoom visible camera, and laser rangefinder modue. 4-light pods, as
Meskernel TC22 Laser Ranging Sensor
Integrating a laser distance module into a UAV pod significantly enhances the UAV's capabilities, making it a versatile tool for various industrial, agricultural, and scientific applications. Despite the challenges, the benefits of precise distance measurement and real-time data processing make this technology invaluable for modern UAV operations.
