VK V9-AG — Agricultural UAV Flight Control System

The VK V9-AG is a professional intelligent flight control system designed specifically for agricultural UAVs, including spraying drones, spreading platforms, and autonomous crop protection aircraft.

Featuring industrial-grade inertial sensors, advanced flight stabilization algorithms, multi-constellation GNSS positioning, and optional RTK navigation, the V9-AG provides reliable flight control for demanding agricultural operations.

With dedicated interfaces for pumps, flowmeters, liquid level sensors, and optional radar systems, the V9-AG combines aircraft navigation and agricultural equipment management in one integrated solution.

Its compatibility with the VK Agriculture application enables efficient mission planning, automated flight operations, and real-time monitoring.

Intelligent Agricultural Flight Control

The V9-AG is designed to simplify professional agricultural drone operations.

It supports automated flight missions and dedicated agricultural functions, allowing operators to configure flight routes and manage spraying or spreading equipment.

Supported operating modes include:

Manual Flight Mode

AB Point Mode

Autonomous Route Mode

Fruit Tree Mode

Point Throw Mode

These functions provide flexibility for field spraying, orchard operations, and agricultural material distribution.

Multi-Constellation GNSS Positioning

The V9-AG supports multiple satellite navigation systems, including:

GPS

BeiDou

GLONASS

This multi-constellation architecture improves satellite availability and supports reliable positioning during autonomous agricultural missions.

The controller also supports dual-GNSS configurations for improved navigation reliability.

Optional RTK Precision Navigation

For applications requiring higher positioning accuracy, the V9-AG supports compatible RTK navigation systems.

Manufacturer-specified hovering accuracy:

Standard GNSS — Horizontal: ±1 m

Standard GNSS — Vertical: ±0.5 m

RTK — Horizontal: ±0.1 m

RTK — Vertical: ±0.1 m

RTK navigation is particularly useful for agricultural operations requiring precise flight paths, repeatable coverage, and reduced overlap between passes.

RTK performance requires the appropriate hardware and valid correction data.

Advanced Agricultural Spraying Management

The V9-AG features dedicated interfaces for agricultural spraying systems.

Its integrated architecture supports:

Up to 4 Water Pumps

2 Flowmeter Inputs

2 Liquid Level Sensor Inputs

These interfaces allow operators to integrate compatible spraying equipment and monitor liquid distribution during agricultural missions.

The system supports automated spraying operations and configurable flow control according to the aircraft’s equipment.

Autonomous Mission Planning

The VK Agriculture application provides tools for creating and managing automated agricultural missions.

Operators can configure field boundaries, define flight routes, and adjust mission parameters.

The system supports:

AB Point Operations

Automatic Route Planning

Field Boundary Mapping

Orchard Flight Missions

Mission Continuation

Agricultural Operation Monitoring

These capabilities help improve operational efficiency and reduce the workload associated with repetitive agricultural missions.

Optional Terrain-Following Radar

The V9-AG supports compatible terrain-following radar modules.

When equipped with an appropriate radar system, the aircraft can adjust its flight altitude according to variations in the terrain.

This function is particularly useful for agricultural operations over uneven ground.

It helps maintain a more consistent distance between the spraying system and the crop surface.

Optional Obstacle Avoidance

Compatible obstacle detection radars can be integrated with the V9-AG.

These sensors provide additional environmental information for supported obstacle avoidance functions.

Optional radar configurations can include front and rear obstacle detection.

Actual obstacle avoidance performance depends on sensor installation, configuration, and operating conditions.

Advanced Vibration-Resistant Algorithms

Agricultural UAVs frequently operate with large propulsion systems, powerful motors, and high mechanical vibration levels.

The V9-AG incorporates advanced flight stabilization algorithms designed to maintain reliable operation in these environments.

Combined with industrial-grade inertial sensors, this architecture helps provide stable flight control for professional agricultural platforms.

PWM & CAN Propulsion Compatibility

The V9-AG supports both PWM and CAN-based propulsion control.

PWM Control

Provides compatibility with conventional ESC control interfaces.

CAN Communication

Supports compatible CAN-based propulsion equipment and provides improved resistance to electromagnetic interference.

This flexibility simplifies integration with different professional agricultural propulsion systems.

Wide 16–100V Power Input

The V9-AG uses a dedicated Power Management Unit (PMU) to supply the flight controller.

The system supports a wide battery input voltage range:

16–100V

Compatible Battery Configurations: 4–24S, within voltage limits

This allows integration into agricultural UAV platforms using different battery configurations.

The PMU provides regulated power to the flight management unit.

VK Agriculture Application

The V9-AG is designed to operate with the VK Agriculture mobile application.

The application provides an interface for aircraft configuration, mission planning, flight monitoring, and agricultural operation management.

Available functions include:

Flight Parameter Configuration

Automated Mission Planning

Real-Time Flight Monitoring

Spraying System Configuration

Field Management

Operation Records

Aircraft Diagnostics

The application supports multiple languages, including English, Chinese, French-independent regional alternatives such as Spanish, Portuguese, Russian, Japanese, Korean, Thai, and Turkish.

Flight Data Recording

The V9-AG supports onboard flight data recording.

The system can store up to 50 flight logs for operational analysis and diagnostics.

These records can assist with troubleshooting, aircraft maintenance, and flight performance evaluation.

Professional Agricultural Applications

The VK V9-AG is suitable for:

Agricultural Spraying Drones

Crop Protection UAVs

Fertilizer Application Systems

Seed Spreading Drones

Orchard Spraying Platforms

Autonomous Agricultural Multirotors

Agricultural UAV Development

Professional Farming Operations

Technical Specifications

Product: VK V9-AG
Brand: VK
Module Type: Agricultural UAV Flight Control System

Application: Agricultural Spraying / Spreading / Crop Protection

Flight Management Unit: V9-FMU
Power Management Unit: V9-PMU

Navigation Systems: GPS / BeiDou / GLONASS

Dual GNSS Support: Yes
RTK Positioning: Supported with Compatible Equipment
Dual Compass Support: Yes

GNSS Hovering Accuracy — Horizontal: ±1 m
GNSS Hovering Accuracy — Vertical: ±0.5 m

RTK Hovering Accuracy — Horizontal: ±0.1 m
RTK Hovering Accuracy — Vertical: ±0.1 m

Maximum Climb / Descent Rate: ±3 m/s
Maximum Ground Speed: 10 m/s
Maximum Flight Angle: 18°

Wind Resistance: Up to Level 6
Flight Path Accuracy: ≤50 cm

Spraying Pump Outputs: 4
Flowmeter Inputs: 2
Liquid Level Sensor Inputs: 2

Propulsion Control: PWM / CAN

Terrain-Following Radar: Optional
Obstacle Avoidance Radar: Optional

Supported Flight Modes: Manual / AB Point / Autonomous Route / Fruit Tree / Point Throw

Flight Log Storage: Up to 50 Records

Ground Control Software: VK Agriculture

Power Supply Input: 16–100 V
Battery Compatibility: 4–24S, within voltage limits

Operating Temperature: -25°C to +60°C

V9-FMU Specifications

Module: VK V9-FMU Flight Management Unit

Dimensions: 73 × 46 × 18.5 mm
Weight: 65 g
Operating Voltage: Regulated 5 V

V9-PMU Specifications

Module: VK V9-PMU Power Management Unit

Dimensions: 88 × 44 × 15.5 mm
Weight: Approximately 75–80 g
Battery Input Voltage: 16–100 V

Available Configurations

V9-AG — Standard GNSS

Agricultural flight control configuration with standard satellite navigation.

V9-AG — Dual GNSS

Configuration supporting dual-GNSS navigation for improved positioning reliability.

V9-AG — RTK

Configuration with compatible RTK positioning equipment for high-precision agricultural operations.

Additional accessories may include terrain-following radar, obstacle avoidance radar, flowmeters, and compatible remote control equipment.

What’s Included

The exact contents depend on the selected configuration.

Standard GNSS Configuration

1× VK V9-AG Flight Management Unit

1× VK V9-PMU Power Management Unit

1× Compatible GNSS Module

Dual GNSS Configuration

1× VK V9-AG Flight Management Unit

1× VK V9-PMU Power Management Unit

Compatible Dual-GNSS Navigation Equipment

RTK Configuration

1× VK V9-AG Flight Management Unit

1× VK V9-PMU Power Management Unit

Compatible RTK Navigation Equipment

Connection cables, mounting accessories, remote controllers, and additional equipment depend on the selected commercial package.

Terrain-following radar, obstacle avoidance radar, flowmeters, and other agricultural accessories are optional unless explicitly included.

RTK positioning requires compatible RTK hardware and valid correction data.

The V9-AG is designed specifically for agricultural UAVs and uses the VK Agriculture control ecosystem.

The high-voltage battery input must be connected through the compatible PMU. Do not connect the aircraft battery directly to the flight management unit.