Binzhou 200KG lifting UAV vertical height difference adapts to the 700-meter mountain road and efficiently spans it

 Industry news    |      2025-12-15

Binzhou 200KG transport aircraft vertical height difference adaptation technology and 700-meter mountain road efficient crossing plan

In the Binzhou mountain operation scenario, the 200KG-class transport aircraft needs to achieve the core requirement of efficiently crossing the 700-meter mountain road and adapting to the complex vertical height difference. This solution combines the mountain terrain characteristics (slope, height difference, road stability) and the load-bearing characteristics of the transport aircraft to build an integrated technical solution from three dimensions: core height difference adaptation technology, mountain road crossing optimization design, and safety assurance system to ensure that the transport aircraft has the ability to efficiently and safely cross mountainous terrain while carrying a 200KG load.

1. Core technology adaptation principles

  • Load-power matching principle: Based on the 200KG rated load and the total resistance (slope resistance, friction resistance, air resistance) of the 700-meter mountain road, the power system parameters are accurately matched to ensure that the power redundancy coefficient is ≥1.3 to avoid insufficient power during climbing.

  • Height difference adaptive adjustment principle: In response to changes in vertical height difference on mountain roads (the estimated maximum height difference in a single section is ≤50 meters), an adaptive chassis and suspension system are used to dynamically adjust the body posture to ensure load stability and traffic smoothness.

  • Principle of efficient traffic optimization: Through path planning and walking mechanism optimization, the energy consumption of mountain road traffic is reduced and the crossing efficiency is improved. The goal is to achieve a one-way traffic time of ≤30 minutes on a 700-meter mountain road (including the necessary posture adjustment time).

  • Safety redundancy guarantee principle: Build a triple safety mechanism of "attitude monitoring-power protection-emergency braking" to cope with sudden changes in mountain road conditions (such as gravel landslides and sudden slope changes) to ensure the safety of loads and equipment.

2. Core technical solution for vertical height difference adaptation

1. Power system upgrade and adaptation

  • Power unit selection: Use a high-voltage DC permanent magnet synchronous motor (rated power ≥ 15kW), paired with a large-capacity lithium battery pack (cruising range ≥ 15km), with high torque and low energy consumption characteristics, suitable for mountain climbing needs； The motor protection level has been upgraded to IP67 to resist the influence of humid and dusty mountain environments.

  • Variable speed transmission optimization: Using a multi-speed transmission mechanism, a new "climbing gear" mode can increase the output torque to 1.8 times the rated value, suitable for steep slopes within 30°.； The transmission system uses a sealed gearbox to reduce wear and tear on transmission components caused by mountain road gravel and dust.

  • Intelligent power distribution: Equipped with a four-drive force distribution system, it monitors the adhesion of each wheel in real time and automatically adjusts the power output ratio (maximum single-wheel power distribution ratio ≥ 60%) for conditions such as single-sided wheel slippage to improve traffic stability on high-differentiated roads.

2. Adaptive design of chassis and suspension system

  • Variable wheelbase chassis: It adopts a telescopic chassis structure with a wheelbase adjustment range of 500-800mm. This shortens the wheelbase on rugged road sections with large height differences and improves body flexibility.； Extend the wheelbase on relatively gentle road sections to enhance driving stability.

  • Active suspension adjustment: Equipped with an electromagnetic active suspension system, it collects body posture (tilt angle, vibration frequency) and road height difference data in real time, adjusts the suspension damping through the electronic control unit (adjustment response time ≤ 0.2s), and controls the body tilt angle within ±5° to ensure that the 200KG load does not shift or shake.

  • High passability running mechanism: Large-diameter off-road tires (diameter ≥600mm) are selected. The tread adopts a deep tooth pattern design, and the ground contact pressure is ≤0.3MPa to enhance the grip on gravel and muddy mountain roads.； The tires are equipped with an automatic inflation and deflation system, which can adjust the tire pressure according to the road hardness (adjustment range 0.3-0.8MPa), improving the adaptability to complex road conditions.

3. Attitude monitoring and precise control technology

  • Multi-sensor fusion monitoring: Equipped with a GPS positioning module, gyroscope, inclination sensor, and distance sensor, it collects mountain road height difference data, body tilt angle (accuracy ±0.1°), and obstacle distance (detection range 0-5m) in real time. The data sampling frequency is ≥10Hz, providing accurate data support for height difference adaptation.

  • Intelligent control algorithm: Based on the PID control algorithm, a closed-loop control system for body attitude is constructed, which automatically adjusts power output, suspension damping and wheel steering angle based on data collected by sensors to achieve adaptive traffic on high-difference roads.； A manual control mode is reserved for manual intervention in response to extreme road conditions.

  • Load stability control: The cargo compartment adopts a hydraulic automatic locking device. When the tilt angle of the fuselage exceeds 3°, it automatically starts locking to fix the load position.； The bottom of the cargo hold is equipped with cushioning and shock-absorbing pads (shock-absorbing stroke ≥50mm) to reduce the impact of height differences and bumps on the load.

3. Optimization plan for efficient crossing of 700-meter mountain road

1. Mountain road path planning and preprocessing

  • Precise path survey: UAV aerial photography combined with manual ground survey is used to draw a detailed topographic map of the 700-meter mountain road, marking the slope distribution (key marking steep slope sections ≥ 25°), vertical height difference nodes, and obstacle locations (such as boulders, ravines), planning the optimal travel path, and avoiding high-risk sections.

  • Pretreatment of key road sections: For ravines with a height difference of more than 50cm in the path, temporary steel springboards (load-bearing ≥500KG) will be laid.； For steep slopes with a lot of gravel, lay anti-skid nets or fixed gravel layers to reduce traffic resistance and the risk of slipping. ； Set guidance signs at turning points of the path to improve traffic efficiency.

2. Traffic efficiency optimization strategy

  • Segmented traffic control: The 700-meter mountain road is divided into three areas: "gentle section (slope ≤ 15°), steep slope section (15° < slope ≤ 30°), and sudden height difference section." The power output mode and driving speed are preset for different areas (gentle section ≤ 5km/h, steep slope section ≤ 2km/h) to avoid frequent parameter adjustments that affect efficiency.

  • Energy recovery optimization: Start the power system energy recovery mode on the downhill section, convert braking energy into electrical energy and recharge it to the battery pack. The recovery efficiency is ≥30%, extending the cruising range and reducing energy consumption.

  • Remote coordinated dispatching: Equipped with a remote monitoring and dispatching center that transmits transport aircraft operating data (position, attitude, load status) in real time through the 4G/5G network. Dispatchers can remotely guide path adjustments to avoid congestion or mistraveling on local sections and improve overall crossing efficiency.

3. Equipment guarantee and rapid response

  • Front-end support point setting: Set up a temporary support point at the midpoint of the 700-meter mountain road, equipped with emergency maintenance tools (hydraulic jacks, spare tires, transmission parts and spare parts) and communication equipment to deal with sudden equipment failures. The fault repair time is ≤10 minutes.

  • Multi-machine collaborative operation (optional): If the transportation efficiency needs to be improved, 2-3 transport aircraft can be used to coordinate the operation, and the dispatching system can plan the staggered points to achieve one-way continuous transportation. The hourly transportation volume on the 700-meter mountain road can be increased to 400-600KG.

4. Security system

1. Active security protection

  • Multi-stage braking system: equipped with triple braking mode of mechanical braking + electromagnetic braking + emergency braking. Mechanical braking is used for conventional deceleration, electromagnetic braking is used for steep slope parking (braking torque ≥200N·m), emergency braking is activated in case of sudden failure, and the braking response time is ≤0.1s.

  • Over-limit protection mechanism: When it detects that the slope exceeds 30°, the inclination angle of the fuselage exceeds 8°, or the load deviation exceeds 10cm, the system automatically cuts off the power output and starts braking, and at the same time issues an audible and visual alarm to prevent the equipment from rolling over or the load from falling.

  • Environmental warning function: Equipped with meteorological sensors, it can monitor wind speed (warning threshold ≥ level 5) and rainfall (warning threshold ≥ 10mm/h) in real time. Traffic is prohibited and warnings are issued in bad weather to avoid mountain meteorological risks.

2. Passive safety protection

  • Fuselage protection and reinforcement: The fuselage is made of high-strength aluminum alloy, and anti-collision steel plates are installed in key parts (power cabin, cargo compartment) to withstand the impact of 50kg gravel.； The cargo hold is equipped with anti-fall guardrails with a height of ≥1.2m to prevent the load from falling.

  • Emergency escape design: The equipment is equipped with an emergency unlocking device. In the event of a sudden failure, the cargo compartment and braking system can be manually unlocked to facilitate personnel evacuation and load transfer.； A positioning beacon is installed on the fuselage to ensure rapid location and rescue in case of failure.

3. Operation and maintenance guarantee mechanism

  • Regular inspection and maintenance: Establish a "daily pre-shift inspection and weekly comprehensive maintenance" system, focusing on checking the power system, braking system, suspension system and sensor status to ensure that the equipment is in good operating condition.

  • Personnel training certification: Operators must undergo professional training (including mountain operation and emergency response), and can only take up their posts after passing the assessment.； Conduct regular emergency drills to improve emergency response capabilities.