Establishment of calibration room for leading new energy vehicle enterprises

The construction of intelligent vehicle calibration rooms primarily encompasses three aspects: the planning and design phase, the implementation phase of calibration room construction, and the system verification and optimization phase. The core of this process lies in achieving a reasonable spatial layout, precise equipment, standardized procedures, and strict environmental control, while simultaneously considering safety and maintainability. Below is a case study showcasing the construction of vehicle calibration rooms for a leading domestic new energy vehicle company by DFOPTIX.

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 safety management.

1. Planning and design stage

This is the foundation for the construction of the calibration room, mainly 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, road scene simulation, 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 list

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 repeated 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 regulatory planning

① Electricity safety, fire safety

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

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

II. Implementation and Construction Phase

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

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 prevention and anti-static measures

④ Installation of ventilation and temperature/humidity control system

2. Equipment installation and debugging

① Calibration plate 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. Hardware and software joint debugging

① Hardware is interfaced 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

III. 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