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Use of autonomous ground vehicles (AGVs) and unmanned ground vehicles (UGVs) is rapidly growing as multiple industries race to replace repetitive, labor intensive, and dangerous tasks, improving efficiency, productivity, and safety. While the terms AGV and UGV are often used interchangeably, there are a few differences. One key difference is that AGVs are used within buildings, such as in warehouses while UGVs are primarily used outdoors. Other key differentiators are:
| AGVs | UGVs |
|---|---|
| * Operate indoors | * Operate outdoors |
| * Navigation with LIDAR or guided paths | * Use GNSS |
| * Wireless communication | * Communicate wirelessly |
| * Battery powered | * Use video |
| * Battery or fuel operated |
Autonomous mobile vehicles, such as AGVs (Automated Guided Vehicles) and AMRs (Autonomous Mobile Robots), are widely used in warehouses and manufacturing plants. Their primary goal is to increase safety, efficiency, and productivity by automating the transport of materials or products. They can reduce the risk of accidents and lower operating costs. Furthermore, the use of smaller automated vehicles allows for maximum warehouse space compared to larger, manually operated vehicles. Autonomous vehicles are divided into two types: assisted navigation vehicles and smart navigation vehicles.
AGVs, or Automated Guided Vehicles, are vehicles controlled by “tags” detected by special sensors. The most common navigation method is laser triangulation. The laser sensor in the AGV scans reflective targets placed at specific locations within the facility (see Figure 1). Based on the signals from these targets, it calculates its position and maps a route using a built-in algorithm.
In addition to laser triangulation, other navigation methods are also used, such as:
Examples of vehicles with assisted navigation:
AMRs are a more advanced version of AGVs. These vehicles do not require markers or reflective targets for navigation. They are equipped with advanced cameras, sensors, and algorithms supporting 2D or 3D mapping, enabling them to make autonomous decisions. AMRs use lidar (a laser sensor) to measure and map distances between objects and vehicles. This allows them to map complex environments and continuously track their position on the map. These systems allow AMRs to avoid obstacles and adapt their route in real time (see Figure ).
Examples of vehicles with smart navigation:
Autonomous cars rely on sensors, actuators, complex algorithms, machine learning systems, and powerful processors to execute software. Autonomous cars create and maintain a map of their surroundings based on a variety of sensors situated in different parts of the vehicle. Radar sensors monitor the position of nearby vehicles. Video cameras detect traffic lights, read road signs, track other vehicles, and look for pedestrians. Lidar (light detection and ranging) sensors bounce pulses of light off the car’s surroundings to measure distances, detect road edges, and identify lane markings. Ultrasonic sensors in the wheels detect curbs and other vehicles when parking. Sophisticated software then processes all this sensory input, plots a path, and sends instructions to the car’s actuators, which control acceleration, braking, and steering. Hard-coded rules, obstacle avoidance algorithms, predictive modeling, and object recognition help the software follow traffic rules and navigate obstacles.
Ultimately, the development and implementation of autonomous technologies can contribute to, among other things:
The autonomous vehicles (AV) market is set for exponential growth in 2025, driven by advancements in artificial intelligence (AI) and increased public and private investment. However, significant challenges remain concerning safety, regulation, and high development costs. According to Precedence Research, the global autonomous vehicle (AV) market is valued at approximately USD 273.75 billion in 2025 and is forecast to grow significantly, potentially reaching over USD 4,450.34 billion by 2034, with a compound annual growth rate (CAGR) around 36.3%. Key market drivers include a focus on safety, advancements in AI and sensors, government support through policies and pilot programs, and commercial demand from sectors like freight and ride-sharing. The market is expected to see continued growth in lower autonomy levels like Level 2, while higher autonomy levels (3, 4, and 5) are experiencing rapid expansion, particularly driven by commercial applications.