Zhisensor D330 Series Industrial 3D Depth Camera — High-Precision Stereo Vision and Structured Light Integration for Industrial Imaging

In today's era of rapid development in smart manufacturing and industrial automation, 3D visual perception technology has become a core factor for improving production efficiency, inspection accuracy, and automation levels. Xi’an Zhisensor has launched the D330 series industrial 3D depth cameras, which integrate stereo vision and structured light technologies, equipped with high-performance RGB and infrared modules. The system can achieve high-precision, high-resolution 3D point cloud reconstruction, meeting the needs of real-time 3D measurement and recognition in complex industrial scenarios. 

What is a Time-of-Flight (ToF) Sensor?

A Time-of-Flight (ToF) sensor is a 3D perception device used to measure the distance between an object and the sensor. Its core principle is to emit light signals (usually infrared pulses) and measure the time it takes for the light to travel to the object and reflect back to the sensor, thereby calculating the distance.

Working Principle:

1. Light Emission: The ToF sensor emits high-frequency pulses or modulated infrared light toward the target scene.

2. Light Reflection: The light reflects off the object's surface.

3. Time Measurement: The sensor precisely measures the flight time of the light, or calculates the distance using the phase shift method.

4. Depth Calculation: Based on the speed of light and the measured flight time, the sensor calculates the distance of each pixel to generate high-precision depth maps or 3D point clouds.

Technical Highlights: ToF Depth Measurement Technology — High-Speed, Accurate, Non-Contact 3D Sensing

1. Active 3D Measurement and High-Precision Point Cloud Acquisition

ToF technology is an active depth sensing method based on the principle of light flight time. By emitting infrared pulses and accurately measuring the time it takes for the light to return, the system can calculate the exact distance from the sensor to the object, generating high-precision 3D depth information. Compared with traditional structured light or stereo vision, ToF technology offers:

• High-Speed Response and Real-Time Measurement: ToF can capture depth in milliseconds, maintaining continuous and accurate depth data even for fast-moving objects or dynamic production lines without motion blur.

• High Accuracy and Per-Pixel Depth Resolution: Each pixel independently measures distance, producing high-precision 3D point clouds that capture surface contours and fine details. Unlike stereo vision, ToF is less affected by lighting or surface texture.

• Dynamic Scene Adaptability: In industrial automation, smart robotics, and logistics sorting, objects may move quickly or frequently. ToF ensures complete and accurate depth data for robotic picking, AGV navigation, and quality inspection.

• Wide Application Scenarios:

  • Industrial inspection: part dimension measurement, assembly accuracy check, defect detection

  • Robotic navigation: AGV path planning, automated grasping, obstacle avoidance

  • Automated picking and sorting: logistics warehouses, assembly line material handling

  • 3D modeling and reverse engineering: mechanical part scanning, cultural relic digitization, surface analysis

• Environmental Interference Resistance: As ToF actively emits infrared light, it does not rely on ambient light and can work stably in low light, strong light, or reflective environments, enhancing reliability in industrial applications.

In summary, ToF active 3D measurement combines high precision, high speed, low latency, and strong environmental adaptability, providing stable and efficient 3D perception for modern industrial automation, smart manufacturing, and robotic vision, making it a core technology in industrial 3D imaging.

2. High-Speed Real-Time Processing and Low-Latency Output

ToF sensors can rapidly calculate depth information for each pixel, achieving millisecond-level acquisition and output for real-time 3D perception. By measuring the flight time of infrared pulses, ToF quickly captures full-scene depth data and generates high-precision point clouds.

• Low Latency: ToF completes depth calculations extremely quickly, outputting low-latency, high-frame-rate data streams, ensuring rapid system response in industrial automation, smart manufacturing, and robotic navigation.

• High Frame Rate: Suitable for continuous acquisition and real-time analysis, e.g., part inspection on production lines, dynamic object recognition, and moving object tracking, ensuring timely detection and decision-making.

• Dynamic Object Adaptability: In mobile robots, AGVs, or autonomous material handling, ToF sensors enable real-time path planning, obstacle avoidance, and grasping, ensuring safe and efficient operation in complex environments.

• Industrial Advantages: ToF's high-speed and low-latency features significantly improve production efficiency, inspection accuracy, and system stability on automated production lines, providing reliable support for industrial 3D vision systems.

3. All-Weather Depth Perception and Complex Environment Adaptability

ToF technology actively emits infrared light pulses and measures their flight time to acquire precise depth information. Even in extreme or complex lighting conditions, ToF maintains stable measurements. Compared with structured light or stereo vision, ToF effectively reduces errors caused by ambient light and ensures high-precision, continuous depth data.

• Low-Light Adaptability: In night, dark indoor environments, tunnels, or warehouses, ToF relies on its own infrared light source for measurement, requiring no external illumination.

• Strong Light and Reflective Surface Resistance: ToF accurately measures distances even under direct sunlight or on glossy surfaces, avoiding errors caused by lighting changes.

• All-Weather, All-Time Operation: ToF sensors can operate continuously regardless of time, weather, or lighting, suitable for smart factories, logistics warehouses, autonomous material handling, and indoor/outdoor robot navigation.

• Industrial Applications: Enables fast, continuous measurement of object volume and position in logistics sorting, high-precision part inspection on automated production lines, and real-time depth information for robot navigation and obstacle avoidance.

With all-weather depth perception, ToF technology provides high-precision, reliable 3D sensing for industrial automation, smart manufacturing, robotic vision, and autonomous systems.

4. Non-Contact Measurement — Protecting Object Surfaces

As a non-contact measurement technology, ToF sensors can acquire complete 3D information without physically touching the object, avoiding surface damage or contamination. This feature is highly advantageous for precision part inspection, electronic component measurement, cultural relic scanning, and biomedical testing, ensuring both safety and efficiency during measurement.

5. Flexible Integration and Multi-Scenario Applications

ToF depth sensors combine high speed, high accuracy, and non-contact measurement capabilities, allowing easy integration into various industrial and intelligent systems for multi-scenario, end-to-end 3D depth perception. Their flexibility and compatibility make them widely applicable in modern industrial automation and robotic vision systems.

• System Integration Advantages: ToF sensors can seamlessly interface with industrial control systems (PLC, SCADA), robotic vision platforms, and AI algorithm analysis platforms, supporting multi-camera synchronization and parallel data acquisition for building complex multi-sensor vision networks.

• Multi-Mode Triggering and High-Speed Acquisition: Support for software trigger, hardware trigger, and time-synchronized triggering modes meets different production rhythms and acquisition needs. High-frame-rate, low-latency data output ensures reliable performance for real-time quality inspection, dynamic object tracking, and intelligent control.

• Real-Time Data Analysis and Processing: When combined with AI platforms, collected depth data can be processed and analyzed in real time, enabling defect detection, dimension measurement, object recognition, and path planning, significantly improving production efficiency and automation.

Typical Applications:

• Smart Manufacturing: Automated assembly lines, part dimension measurement, and quality inspection

• Automated Sorting: High-speed object recognition and sorting in logistics warehouses

• 3D Modeling and Reverse Engineering: Industrial part scanning, cultural relic digitization, structural analysis

• Robotic Navigation and Obstacle Avoidance: AGV and mobile robot path planning and environment perception

• Autonomous Warehousing and Smart Logistics: Real-time volume measurement, package localization, and handling optimization

By providing flexible integration and adaptability across scenarios, ToF technology has become a core enabler for modern industrial automation, smart logistics, and robotic vision, offering reliable and stable 3D perception solutions for intelligent manufacturing and automation upgrades.

6. Summary of Advantages

• High Speed: Millisecond-level depth acquisition, enabling real-time response in dynamic scenes

• High Precision: Per-pixel depth measurement, suitable for industrial inspection and 3D modeling

• Non-Contact: Protects object surfaces without physical interaction

• All-Weather Capability: Operates reliably in low light, high reflectivity, and complex environments

• Easy Integration: Supports multi-camera setups, AI algorithms, and industrial automation systems

With these advantages, ToF technology has become a core solution in industrial 3D vision, smart robotics, automated inspection, and intelligent logistics, serving as an essential technical foundation for the future of smart manufacturing and automation.

II. Product Models and Core Specifications

Supported output formats: Point Cloud: PCD, PLY, TXT; Gray Image: BMP (8-bit); RGB Image: BMP (24-bit); Depth Image: PNG (16-bit), fully compatible with mainstream 3D vision algorithms and AI recognition systems.

III. Core Industrial Applications of the D330 Series

1. Industrial Inspection and Dimension Measurement
   With sub-millimeter precision and high stability, the D330 can perform defect detection, assembly tolerance measurement, and weld inspection for high-precision industrial vision tasks.

2. Smart Robotics and Automated Production
   Provides robots with 3D visual navigation and target recognition, supporting vision-guided assembly (Pick & Place), AGV obstacle avoidance, and automated grasping, aiding smart manufacturing upgrades.

3. 3D Modeling and Reverse Engineering
   In mechanical manufacturing and cultural relic scanning, the D330 generates high-precision 3D point cloud models for reverse engineering, surface analysis, and CAD comparison.

4. Smart Logistics and Volume Measurement
   Using stereo depth data, it can accurately measure package dimensions, enabling volume detection, intelligent sorting, and warehouse optimization.

5. Education, Research, and AI Vision Algorithm Validation
   The D330 provides SDKs (Windows/Linux) and DkamViewer visualization software, supporting rapid secondary development, ideal for universities, research institutions, and AI vision algorithm validation platforms.

IV. Why Choose the Zhisensor D330 Series?

V. Future Trends in ToF and Structured Light Integration

As ToF depth cameras become more widespread in consumer electronics and autonomous driving, the industrial sector increasingly demands higher precision and stronger interference resistance. The Zhisensor D330 series combines:

• ToF speed + Structured Light precision = Optimal smart manufacturing solution

• Supports AI algorithm optimization, enabling fully intelligent workflows for Industry 4.0

• Compatible with multi-camera synchronization for full-scene 3D reconstruction

VI. Conclusion: D330 Series — High Cost-Performance Choice for Industrial 3D Vision

The Zhisensor D330 series integrates high-precision stereo vision algorithms, active structured light measurement, RGB & IR fusion, and GigE high-speed transmission, making it an ideal solution for robot vision, automated inspection, smart logistics, and 3D modeling.

If you are looking for an industrial 3D depth camera with high precision, versatile interfaces, and strong compatibility, the D330 series is a reliable and trustworthy choice.

Zhisensor D330 Series Industrial 3D Depth Camera – High Precision, Stereo Vision, RGB & Infrared, GigE Interface

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After-sales Service: Our professional technical support team specializes in TOF camera technology and is always ready to assist you. If you encounter any issues during the usage of your product after purchase or have any questions about TOF technology, feel free to contact us at any time. We are committed to providing high-quality after-sales service to ensure a smooth and worry-free user experience, allowing you to feel confident and satisfied both with your purchase and during product use.