TABLE OF CONTENTS
Technology
10
MIN READ
June 3, 2024
June 3, 2024

AGV vs. AMR: Choosing the Right Robot

Automated guided vehicles (AGVs) and autonomous mobile robots (AMRs) are reshaping how businesses approach logistics and manufacturing with distinct differences. While AGVs follow predetermined paths, AMRs use sophisticated sensors and artificial intelligence for flexible navigation. Both technologies enhance efficiency, safety, and adaptability in warehouse and production environments. Dig deeper to understand their benefits and advantages of integration with AutoStore.

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Key takeaways:

What does AGV and AMR stand for?

“AGV” stands for automated guided vehicle, and "AMR" stands for autonomous mobile robot.

Automated guided vehicles (AGVs) are mobile robots used in industrial environments to transport materials  around a manufacturing facility or a warehouse. AGVs are typically guided by permanent wires, magnetic strips, or markers in the floor.

Autonomous mobile robots (AMRs), on the other hand, represent a more advanced technology. These robots can navigate in an environment without being confined to predefined paths and react to dynamically changing environments. They use sensors, cameras, and onboard intelligence to move through spaces, avoiding obstacles and deciding the best routes. Importantly, AMRs leverage AI algorithms to process sensory data, make decisions, and learn from their environment, enhancing their navigation capabilities and operational efficiency.

Both AGVs and AMRs are key components in automating logistics and manufacturing processes.

Exploring the capabilities and limitations of AGVs and AMRs

The landscape of modern logistics and manufacturing environments is being reshaped by the integration of automated guided vehicles (AGVs) and autonomous mobile robots (AMRs). While these technologies bring a host of capabilities and benefits, understanding their limitations is crucial for a nuanced assessment. This section delves into the strengths and challenges of AGVs and AMRs, providing a comprehensive overview to inform decision-making.

AGVs: Capabilities, Benefits, and Limitations

AGVs: Capabilities, Benefits, and Limitations

Capabilities and Benefits

  • Defined path navigation: AGVs excel in environments with structured layouts, following permanent predefined paths marked by wires, magnetic strips, or optical tracks. This precision makes them ideal for repetitive and predictable tasks.
  • Load handling: Capable of transporting heavy loads, AGVs can significantly enhance efficiency and reduce the need for manual labor in material handling operations.
  • Safety features: Equipped with various safety mechanisms, AGVs minimize the risk of collisions, protecting both personnel and infrastructure.
  • System integration: These vehicles can seamlessly integrate with existing warehouse management systems, facilitating streamlined operations.

Limitations

  • Space requirements: AGVs need clear pathways to operate, which may necessitate modifications in the workplace to accommodate their movement, impacting space utilization.
  • Vendor lock-in: The reliance on proprietary software for operation and communication restricts interoperability between different manufacturers' systems, complicating fleet expansions or upgrades.
AMRs: Capabilities, Benefits, and Limitations

AMRs: Capabilities, Benefits, and Limitations

Capabilities and Benefits

  • Dynamic path selection: Unlike AGVs, AMRs navigate autonomously, dynamically adjusting their routes to environmental changes, offering greater operational flexibility.
  • Advanced obstacle avoidance: With sophisticated sensors and cameras, AMRs safely navigate around obstacles, ensuring uninterrupted workflow.
  • Scalability: Easily adaptable to various tasks and scalable to operational demands, AMRs fit a wide range of applications.
  • Data insights: AMRs contribute to process optimization and predictive maintenance through continuous data collection and analysis.
  • Ease of deployment: AMRs require minimal infrastructural changes for deployment, making them a versatile option for different settings.
  • Collaborative work: Designed to complement human tasks, AMRs enhance productivity by working alongside personnel.

Limitations

  • Initial costs and financial risk: Medium acquisition costs and the potential for rapid depreciation pose significant potential financial considerations. The relatively short history of these technologies, spanning 10 to 20 years, adds to the investment risk.
  • Space efficiency: While AMRs are more flexible than AGVs, space planning remains essential to optimize their navigation and operational efficiency while potentially decrementing space utilization.
  • Safety in mixed environments: The interaction between AMRs and human-operated equipment, like forklifts, requires careful management to prevent incidents. Human vehicle-to-AMR impacts are a significant risk.
  • Traffic congestion: AMRs operate in a dynamic environment that is fluid and ever-changing, with consistent risk of congestion if not managed.
  • Energy requirements: Dependence on battery life limits operational time and necessitates planning for charging stations and downtime.
  • Software complexity: The advanced capabilities of AMRs come with complex software requirements, demanding skilled personnel for the initial setup and ongoing maintenance.

In summary, while AGVs are tailored for efficiency in stable, repetitive task environments, AMRs offer adaptability and data-driven insights for dynamic settings. The choice between AGVs and AMRs depends on specific operational needs, budget considerations, and the desired level of flexibility and integration. Both technologies face challenges such as high initial costs, space requirements, and safety considerations in mixed-use environments. Understanding these nuances is vital for selecting the right robotic assistance for your business operations.

Which one suits your operations? AGV or AMR?

When deciding whether to choose AGVs or AMRs for your operations, consider the nature of your tasks and the environment they'll be operating in. Let's look at some practical examples to help  match the right type of robot with your business needs:

Warehouse operations: Fixed vs. dynamic paths

If you're moving large quantities of goods along fixed paths, such as pallets from storage to loading docks, AGVs are efficient and reliable.

Manufacturing: Predictable vs. flexible tasks

AGVs are great for transporting heavy materials over predictable paths, like moving components from one part of the assembly line to another.

In contrast, AMRs are ideal for more flexible tasks, such as delivering parts to various assembly stations where the locations might change or adapt over time.

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Healthcare facilities: Predefined vs. adjustable

For moving supplies along predefined routes in large hospitals, AGVs are effective and can handle the structured environment well.

For more dynamic environments like navigating busy corridors and delivering sensitive materials (like medications or lab samples), AMRs can adjust their paths in real-time and interact safely with staff and patients.

Retail environments: Structured vs. adaptable routes

In the back-end operations, like a large warehouse connected to a retail store, AGVs are useful for moving stock in bulk along fixed routes.

Within the retail store itself, AMRs can excel in inventory management, moving through varying aisle layouts and avoiding customers, offering a more adaptable solution.

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In summary, AGVs are best suited for structured, repetitive tasks in stable environments, especially involving heavy loads. AMRs, with their advanced navigation and flexibility, are ideal for dynamic, changing environments where tasks might vary or require interaction with humans and other obstacles. Assess your specific operational needs, considering both current requirements and potential future changes, to make the best choice.

Integrating AGVs and AMRs with AutoStore

Integrating automated guided vehicles (AGVs) and autonomous mobile robots (AMRs) with the AutoStore system can enhance the efficiency and flexibility of warehouse and production environments. Here’s how each can be integrated and their respective benefits:

AutoStore and AGV integration

AGVs can be seamlessly integrated with AutoStore. For example, they are particularly adept at transporting target totes or full racks to designated destinations, instead of using conveyors that can be more efficient, but less flexible. However, this integration might require more structured modifications to the warehouse layout to accommodate the AGV's navigation pathways.

Capabilities with AutoStore:

  • Automating Inbound Processes: AGVs can be used for automating the inbound processes, like handling pallets, which increases efficiency in the supply chain.
  • Unit Sortation: Transportation from a Port to somewhere else, (e.g. packing station/outbound area).
  • Consolidation of Picking Areas: E.g. if an order consists of products stored in different areas of the warehouse — one in the AutoStore and one in the area for "uglies," which are the odd-looking goods that are tricky to package because of their size, shape, and fragility. A human, in this case, can be assigned to a Port while an AGV can be used for the "uglies" instead of walking or transporting via conveyor.

AutoStore and AMR integration

Integrating AMRs with an AutoStore system is generally more flexible due to their advanced sensors and dynamic navigation capabilities.

Capabilities with AutoStore:

  • Flexibility in Processes: As mentioned, AMRs are ideal for environments where processes are more flexible and there’s significant traffic. Their dynamic route planning capabilities allow for efficient maneuvering around obstacles and changing layouts.
  • Suitability: AMRs might be more suitable in scenarios where there is a need for high adaptability, such as warehouses with frequently changing layouts or those that require frequent interaction between different areas.

Considerations for software requirements

Note that when handling inventory Bins outside of the AutoStore system, it’s important to consider the impact on software requirements. Once a tote leaves the system, it can't be accessed at a workstation, and the movement is no longer under the direct control of the AutoStore system. This aspect necessitates advanced software solutions to track and manage these external movements, ensuring seamless integration and efficiency.

Enhancing warehouse operations: The synergy between AGVs, AMRs, and AutoStore

When optimizing warehouse and production environments, the integration of AGVs and AMRs with the AutoStore system emerges as a pivotal strategy. This combination not only enhances efficiency and flexibility but also tailors the operational framework to suit varied tasks and environments. Understanding the distinct capabilities and integration benefits of AGVs and AMRs with AutoStore will guide businesses in choosing the right automation tools for their specific needs.

Tailoring operations with AGVs and AutoStore integration

AGVs offer a robust solution for structured, repetitive tasks within warehouse operations. Their seamless integration with the AutoStore system amplifies this efficiency, particularly in environments with fixed pathways and predictable tasks, such as the bulk transport of goods from storage to loading docks. AGVs excel in:

  • Targeted Material Handling: They are adept at transporting target totes or racks to specific destinations, offering an efficient alternative to traditional conveyors.
  • Enhancing Inbound Processes: AGVs automate the handling of pallets and other inbound processes, streamlining the supply chain.
  • Versatile Unit Transport: From facilitating unit sortation to consolidating picks from different warehouse areas, AGVs enhance operational throughput and reliability.

This integration necessitates structured modifications to the warehouse layout to support the AGVs' navigation, making it ideal for environments with stable, repetitive tasks and heavy load management.

Sport Okay, a sports equipment retailer in Austria, uses Safelog AGVs integrated with AutoStore for e-commerce fulfillment. The system was designed by Hörmann Intralogistics.

Dynamic adaptability with AMRs and AutoStore integration

In contrast, AMRs thrive in dynamic, changing environments due to their advanced sensors and navigation capabilities. They adapt in real-time to obstacles and workflow variations, making them suitable for flexible tasks such as navigating busy corridors in healthcare facilities or managing inventory in retail spaces with varying aisle layouts. The integration with AutoStore leverages these strengths:

  • Flexibility in Workflow Management: AMRs' dynamic route planning and adaptability make them ideal for environments with frequent layout changes or significant pedestrian traffic.
  • Enhanced Process Adaptability: They support a wide range of tasks, from transporting Bins for kitting lines in production environments to adjusting routes in real-time for efficient operation.

AMRs, with their flexible navigation, are particularly beneficial in scenarios requiring high adaptability, such as warehouses with frequently changing layouts or tasks that involve frequent interaction between different areas.

Third-party logistics (3PL) provider Active Ants integrates GreyOrange AMRs into their fulfillment processes. Items are picked from CarouselPorts directly into boxes carried atop the GreyOrange robots. The AMRs then carry the boxes from the AutoStore Grid to packing machines and sort them before shipping

Watch this video to see the combination technologies in action at the Active Ants warehouse in Dorsten, Germany! (Credit: Active Ants)

Strategic considerations for integration

Choosing between AGVs and AMRs for AutoStore integration hinges on the specific operational needs and the environment of the warehouse:

For Structured, repetitive tasks: AGVs integrated with AutoStore are ideal for operations that involve moving heavy loads along fixed paths. This combination suits environments where efficiency and predictability are paramount, such as in large-scale manufacturing or distribution centers with well-defined workflows.

For Dynamic, flexible environments: AMRs are the go-to choice for integrating with AutoStore in settings that demand adaptability and the ability to navigate complex, changing environments. They excel in scenarios where tasks vary or involve interaction with humans and other dynamic obstacles, such as in retail environments or production areas with variable assembly stations.

Software and system considerations

Integrating AGVs or AMRs with AutoStore necessitates advanced software solutions to ensure seamless operation and efficient management of external movements. This includes tracking Bins outside of the AutoStore system, managing dynamic route planning for AMRs, and adapting warehouse layouts for AGV pathways. Businesses must assess both their current operational needs and potential future changes to select the most appropriate automation tools, ensuring that the integration enhances overall efficiency, flexibility, and scalability of warehouse operations.

By carefully considering these factors, businesses can harness the strengths of AGVs and AMRs in conjunction with AutoStore to optimize their warehouse and production environments, achieving a balance between structured efficiency and dynamic adaptability.

Conclusion

Navigating the intricacies of AGVs and AMRs reveals a clear path to enhancing operational efficiency and adaptability within warehouse and production settings. The decision to integrate these technologies with AutoStore is a strategic one, influenced by the unique requirements and goals of each business. As industries continue to evolve, leveraging these advanced robotic solutions offers a way to not only streamline current processes but also to future-proof operations against upcoming challenges. This synergy between AGVs, AMRs, and AutoStore exemplifies the innovative spirit of modern logistics and manufacturing, highlighting the importance of adaptability and strategic planning in achieving operational excellence. In essence, the thoughtful integration of these technologies marks a significant step forward in the pursuit of optimized, flexible, and resilient operational frameworks.

FAQ

What is the difference between AMR and AGV?

AMRs (Autonomous Mobile Robots) use sensors and AI for navigation, adapting to their environment. AGVs (Automated Guided Vehicles) follow fixed paths using physical guides, making them less flexible.

How are AMRs different from AGVs?

AMRs can navigate autonomously and adapt to changes, while AGVs follow preset paths and  require physical guides.

What is an AMR?

An AMR (Autonomous Mobile Robot) is a self-navigating robot, using sensors and AI to move and operate in dynamic environments.

What are the three types of AGV?

Towed AGVs: Pull loads.

Unit Load AGVs: Carry individual loads, like pallets.

Forklift AGVs: Automated forklifts for lifting materials.

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