Establishment of vehicle calibration room for Sino-Japanese joint venture car companies

The construction of an intelligent vehicle calibration room primarily encompasses three aspects: the planning and design phase, the implementation phase of the calibration room construction, and the system verification and optimization phase. Its core lies in reasonable spatial layout, precise equipment, standardized processes, and strict environmental control, while also considering safety and maintainability. The following is a case study of Dafang Optics constructing a vehicle calibration room for a well-known domestic joint venture automotive company.

Process sequence: Requirement analysis → Space planning → Equipment selection → Space construction → Equipment installation → System joint debugging → Calibration verification → Process optimization.

Key points: hardware facilities, software systems, operational norms, environmental control, and security management.

1. Planning and design stage

This forms the foundation for the construction of the calibration room, primarily determining its functions, layout, and technical specifications.

(1)Requirement analysis

① Clearly define the objectives: vehicle-mounted cameras, LiDAR, surround view systems, multi-sensor fusion systems, etc.

② Clarify accuracy requirements: spatial accuracy, time synchronization accuracy, and calibration repeatability.

③ Clarify scene requirements: indoor lighting control, simulated road scenes, vehicle dynamic testing, etc.

(2)Spatial planning

① Site selection: Avoid strong magnetic interference, vibration impact, and unstable ambient light.

② Space division:

  Vehicle parking area

  Measurement and calibration area

  Data processing and analysis area

  Instrument and equipment storage area

③ Planning for ventilation, dust prevention, and temperature and humidity control.

(3)Equipment requirements and inventory

Calibration tool:

  Calibration board (2D, 3D, multiple types)

  High-precision glass thread gauge

  Laser tracker

④ Sensors and measuring equipment:

  Camera, LiDAR, IMU, GNSS

  Industrial robot (for automatic calibration or repetitive positioning)

⑤ Auxiliary equipment:

  Optical support, target holder, adjustable lighting

  Data acquisition server, synchronous control system

⑥ Software:

  Calibration algorithm software

  Data analysis and visualization tools

  Simulation and error analysis tools

(4)Safety and standard planning

① Electricity safety and fire safety

② Operating specifications: vehicle movement, instrument operation, data storage

③ Measures for dust prevention, vibration isolation, and light pollution control

2. Implementation and Construction Phase

This is the physical construction and system integration phase of the calibration room.

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(1)Space construction and renovation

① The ground is leveled and shock absorption treatment is applied

② Installation of lighting system (with adjustable brightness and direction)

③ Dust-proof and anti-static measures

④ Installation of ventilation and temperature/humidity control system

(2)Equipment installation and debugging

① Calibration board and bracket installation: Ensure precise horizontal and vertical positions

② Installation of measuring equipment: calibrating the positions of laser trackers and cameras

③ Vehicle positioning system: ground positioning markers, automatic parking assist system

④ Data acquisition and synchronization system: ensuring time alignment of multi-sensor data

(3)Joint debugging of software and hardware

① Hardware docking with calibration algorithm software

② Debugging of data transmission and storage system

③ Simulation test: Simulate the calibration process and check the accuracy of data

(4)Standardization of calibration process

① Develop standard operating procedures (SOP) for calibration

The process includes: sensor preheating → preliminary calibration → precision calibration → data verification

③ Train operators to ensure consistency

3. System verification and optimization stage

Ensure that the calibration room functions are available and the accuracy meets the standards.

(1)Preliminary acceptance

① Equipment installation integrity inspection

② Lighting, temperature and humidity, vibration testing

③ Safety inspection

(2)Calibration verification

① Use standard test vehicles or calibration objects

② Check spatial accuracy and repeatability

③ Check whether the sensor calibration results meet the requirements

(3)Process optimization

Record the calibration time, error, and operational difficulties

② Optimize the position of the calibration board, lighting angle, and software parameters

③ Update operational specifications and training materials

(4)Daily maintenance planning

① Regularly calibrate the calibration board and measuring equipment

② Equipment maintenance and software upgrades

③ Data backup and security management