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Mission computers for drones

Onboard computers that process sensor data, run autonomy and AI algorithms and manage the payload.

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Mission computers for drones: autonomy, perception and payload

Updated November 3, 2026

A mission computer is the onboard processor that handles the heavy computing work the flight controller should not do: sensor fusion, computer vision, AI inference, path planning, payload control, video encoding and data storage. It sends high-level commands to the flight controller, which keeps the vehicle flying safely.

Types

  • Companion computers: small boards with GPU or neural accelerators, used on professional multirotors for vision and autonomy.
  • Rugged mission computers: sealed, conduction-cooled units with defence-grade connectors for military and harsh environments.
  • Modular open architectures: computers based on standards such as VPX, with interchangeable processing, graphics and I/O cards.

Key specifications

  • Processor and accelerator: CPU cores, GPU, FPGA or neural processing units, and their AI performance (TOPS).
  • Power consumption and the heat it generates, against the cooling available.
  • Camera and sensor inputs: MIPI, GMSL, Ethernet, USB.
  • Video encoding for the downlink.
  • Interfaces to the autopilot and payload: Ethernet, CAN, serial.
  • Storage capacity and encryption.
  • Ruggedness: temperature range, shock, vibration, sealing (IP rating), MIL-STD-810 and MIL-STD-461 qualification.
  • Software support: Linux, ROS 2, AI frameworks and security features such as secure boot.

Choosing

Start from the workload: how many cameras, at what resolution, running which algorithms, and at what latency. Then check the power and thermal budget of the airframe. A computer that throttles when it overheats will not deliver its datasheet performance in flight.

Manufacturers in the directory

Examples include Curtiss-Wright, Aitech, Auterion, ModalAI and Connect Tech.

Frequently asked questions

Why not run autonomy on the flight controller?

Autonomy and vision need far more computing power than a flight controller provides, and their software is more complex. Keeping them on a separate computer protects the real-time, safety-critical flight control from being disturbed.

What does TOPS mean for an AI computer?

Tera operations per second: a measure of the peak throughput of an AI accelerator. It is useful for rough comparison, but real performance depends on the model, precision and software optimisation.

What is VPX?

A family of standards (VITA) for rugged, modular embedded computers built from plug-in cards. It is common in defence and aerospace because it allows upgrades and multi-vendor systems.

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