Vehicle Positioning System Hardware

Unattended Weighing and Automation – Single Scale

Product Overview

The ILS Vehicle Positioning System Hardware is designed for unattended weighing and automated scale operations, ensuring that trucks are properly positioned on the scale before a transaction can occur.

By using infrared photoelectric sensors, this system helps enforce correct vehicle placement, improving weighing accuracy, security, and operational consistency—with or without a scale attendant present.

How the System Works

Photoelectric sensors are installed at each end of the scale to verify that the vehicle is fully and correctly positioned.

• If the infrared beam at either end of the scale is broken, the weighing transaction is automatically inhibited
• The transaction cannot proceed until the vehicle is correctly positioned and the beam is cleared
• This ensures that trucks are fully on the scale and prevents partial or inaccurate weighments

System Components

The Vehicle Positioning System Hardware includes:

• Two infrared photocell emitter and receiver pairs
  • Installed at opposite ends of the scale
• Vehicle Positioning Junction Box
  • Contains relays and circuitry
  • Interfaces directly with the ScaleQ PC

This hardware configuration supports reliable integration into automated and unattended weighing environments.

Operator and Driver Feedback

When a vehicle is not properly positioned on the scale:

• A message indicating the vehicle is out of position is displayed on:
  • The RDT LCD display
  • The ScaleQ operator screen
• The Positioning icon in the ScaleQ toolbar clearly indicates which photocell is blocked

This feedback allows drivers and operators to correct positioning quickly without guesswork.

Designed for Unattended and Extended Operations

Proper vehicle positioning is critical for operations that require:

• Unattended weighing
• After‑hours scale access
• Automated yard operations
• Secure and accurate transactions without manual oversight

Vehicle positioning sensors add an important layer of control and validation, helping protect data integrity and prevent weighing errors.

Built for Accuracy and Reliability

ILS offers a broad range of software and hardware solutions designed to simplify and expedite scale house operations.

The Vehicle Positioning System Hardware helps ensure:

• Accurate weights
• Consistent enforcement of scale rules
• Reliable unattended operation
• Reduced operator intervention

Ideal Applications

• Unattended or semi‑attended scales
• High‑traffic scale facilities
• Automated facilities requiring positioning validation
• Operations prioritizing accuracy and compliance