Unmanned Weighing Solutions for Ports

FA9244-25T Heavy-Duty Pressure Sensor Empowering Autonomous Port Transportation

Driven by the rapid advancement of port automation and autonomous driving technologies, smart ports are becoming a key direction for the future of modern logistics and transportation. As one of the core transportation assets in smart ports, autonomous heavy-duty trucks are responsible for critical tasks such as container transfer, terminal logistics transportation, and yard dispatching.

Compared with traditional manually driven vehicles, autonomous trucks rely on the coordinated operation of LiDAR, vision systems, inertial navigation systems, and chassis force sensing systems to achieve autonomous decision-making and precise vehicle control. Among these technologies, the chassis weighing system plays a vital role in monitoring vehicle status, directly affecting load identification, center-of-gravity calculation, braking control, and overall driving safety.

To meet the requirements of smart port autonomous trucks, FIBOS has developed the FA9244-25T Heavy-Duty Pressure Sensor, providing a high-precision and highly reliable force sensing solution for autonomous port vehicles.

Why Do Smart Port Autonomous Trucks Need High-Precision Weighing Systems?

During operation, autonomous heavy-duty trucks must continuously obtain real-time information about vehicle load conditions and chassis force distribution.

These data are widely used for:

· Autonomous driving path planning

· Vehicle attitude control

· Intelligent brake force distribution

· Power output optimization

· Overload monitoring and warning

· Container weight identification

· Vehicle health management

For conventional vehicles, drivers can assess vehicle conditions based on experience. However, autonomous trucks rely entirely on sensor-generated data for decision-making.

Any deviation in load measurement may result in:

· Incorrect center-of-gravity calculations

· Reduced cornering stability

· Increased braking distance

· Accelerated tire wear

· Reduced autonomous driving accuracy

· Increased safety risks

Therefore, accurate and stable weighing sensors have become a critical sensing component in smart port autonomous driving systems.

Typical Challenges Faced by Autonomous Port Trucks

1. Continuous Heavy Loads from Container Transportation

Port transportation vehicles typically handle 20-foot and 40-foot containers.

A fully loaded container can weigh several tens of tons.

Long-term operation under heavy loads places extremely high demands on chassis force measurement systems.

Conventional industrial sensors may experience:

· Increased creep

· Reduced accuracy

· Metal fatigue

· Shortened service life

2. Frequent Dynamic Impact Loads

During daily port operations, activities such as:

· Container lifting and placement

· Rapid acceleration

· Emergency braking

· Uneven road surfaces

· Ramp crossings

can generate significant instantaneous impact loads.

These impact forces are often much higher than static loads.

If a sensor lacks sufficient overload protection, it may suffer from:

· Signal abnormalities

· Data distortion

· Permanent deformation

· Equipment damage

3. Severe Corrosion in Coastal Environments

Ports are typically exposed to high-salt environments.

Long-term exposure to:

· Sea breeze

· Salt spray

· Rainwater

· Dust

· Oil contamination

can cause conventional sensors to experience:

· Housing corrosion

· Seal failure

· Cable aging

· Connector damage

This increases maintenance costs and downtime risks.

4. Temperature Variations Affect Measurement Accuracy

Ports operate around the clock.

High summer temperatures, low winter temperatures, and significant day-night temperature fluctuations can all affect sensor performance.

Without effective temperature compensation, sensors may experience:

· Zero drift

· Sensitivity changes

· Data fluctuations

which can negatively impact autonomous driving decisions.

FA9244-25T Heavy-Duty Pressure Sensor Solution

To address the demanding conditions of smart port operations, FIBOS specifically developed the FA9244-25T Heavy-Duty Pressure Sensor.

The product has been comprehensively optimized in terms of structural design, material selection, sealing technology, and signal stability.

Technical Specifications

Specifications	Technique
Model	FA9244
Product Type	Heavy-Duty Pressure Sensor
Accuracy	≤0.2% F.S.
Safe Overload	120% F.S.
Ultimate Overload	150% F.S.
IP	IP65
Operating Temperature	-20°C to 80°C
Creep 30min	≤0.1%F.S.
Material	Alloy steel
Cable size	Aviation connector/cable, 3 metres
Applicable Vehicles	Autonomous Heavy Trucks, AGVs, Port Transport Vehicles

Key Advantages of the FA9244-25T

1. High Capacity Design for Heavy-Duty Transportation

The 25-ton rated capacity is specifically designed to meet the requirements of:

· Container transport trucks

· Autonomous port heavy-duty trucks

· Autonomous logistics vehicles

and other heavy-load applications.

Even under complex road conditions and impact loads, the sensor maintains stable and reliable measurements.

2. High-Precision Measurement for Autonomous Driving

The sensor utilizes advanced strain gauge technology and precision compensation processes.

Comprehensive accuracy is maintained within:

≤0.2% F.S.

This ensures long-term stable and accurate load measurement data.

It enables autonomous driving systems to achieve:

· Accurate center-of-gravity calculations

· Dynamic vehicle attitude control

· Stable route planning

3. Excellent Overload Resistance

The FA9244-25T offers:

· 120% F.S. safe overload protection

· 150% F.S. ultimate overload capacity

Even under severe container placement impacts or rough road conditions, the sensor remains protected and operational.

This significantly reduces the risk of equipment damage.

4. Stable Performance Across Wide Temperature Ranges

With full-range temperature compensation technology, the sensor operates reliably within:

-20°C to 80°C

This effectively minimizes measurement errors caused by environmental temperature changes.

5. Highly Reliable Protection Design

The sensor features:

· High-strength alloy steel construction

· Industrial-grade sealing technology

· IP65 protection rating

It effectively withstands:

· Salt spray corrosion

· Dust intrusion

· Rain exposure

· Long-term vibration and shock

This greatly reduces maintenance frequency and operating costs.

Typical Application Scenarios

Real-Time Chassis Load Monitoring

The sensor continuously collects chassis force data to help autonomous driving systems monitor:

· Vehicle load conditions

· Axle load distribution

· Center-of-gravity position

This improves overall vehicle stability and operational safety.

Container Weight Detection

The system can automatically identify:

· Empty containers

· Fully loaded containers

· Overloaded containers

· Unevenly loaded containers

This enhances transportation safety management within port operations.

Intelligent Braking Control

Based on real-time load changes, the system dynamically adjusts:

· Braking force output

· Driving force distribution

This helps prevent wheel slip and vehicle instability under heavy-load conditions.

Vehicle Health Monitoring

By continuously monitoring long-term chassis force variations, the system enables:

· Frame fatigue analysis

· Suspension health monitoring

· Fault prediction and warning

This supports predictive maintenance strategies for port operators.

FAQ

Q1: What types of vehicles are suitable for the FA9244-25T?

The sensor is suitable for:

· Smart port autonomous heavy-duty trucks

· Autonomous container trucks

· AGV transport vehicles

· Port logistics vehicles

· Heavy-duty transport platforms

Q2: Can the sensor operate long-term in coastal environments?

Yes.

The sensor features a high-strength alloy steel structure and IP65 protection rating, providing excellent resistance to salt spray, humidity, and dust.

Q3: Are customized capacities available?

Yes.

FIBOS can provide customized capacities and mounting structures according to specific project requirements.

Q4: How can the sensor be integrated with autonomous driving systems?

The sensor provides standard industrial signal outputs and can be easily integrated with:

· Autonomous driving controllers

· Drive-by-wire chassis systems

· PLC systems

· Industrial computers

· Vehicle Control Units (VCUs)

Q5: Is the sensor suitable for 24/7 continuous operation?

Yes.

The FA9244-25T is specifically designed for industrial heavy-duty applications and fully supports continuous operation in smart port environments.