The **LMS-C2-R** is an industrial-grade, ultra-compact LiDAR (Light Detection and Ranging) sensor part of the **LMS Series** (often associated with SICK AG or similar industrial automation brands). It is designed for high-speed measurement and object detection in robotics and factory automation. --- ### 1. Core Electronic Components The internal architecture of the LMS-C2-R revolves around time-of-flight (ToF) technology and high-precision optoelectronics. | Component | Function | | :--- | :--- | | **Laser Diode** | Emits an infrared (IR) light pulse (typically Class 1 eye-safe). | | **APD (Avalanche Photodiode)** | A highly sensitive receiver that detects the reflected light pulse. | | **Timing ASIC/FPGA** | A dedicated chip that measures the "Time of Flight" with picosecond resolution. | | **Rotating Mirror / Motor** | A brushless DC motor that spins a mirror to provide a 270°–360° field of view. | | **Processing Unit** | An ARM-based or custom MCU that calculates distance and angular coordinates. | --- ### 2. Technical Specifications Below are the typical electronic and operational parameters for this unit: | Parameter | Specification | | :--- | :--- | | **Supply Voltage** | 10.8 V DC ... 30 V DC | | **Power Consumption** | ~5W to 8W (during operation) | | **Interface** | Ethernet (TCP/IP), RS-232, or I/O | | **Scanning Frequency** | 15 Hz to 50 Hz (model dependent) | | **Angular Resolution** | 0.25° to 1° | | **Enclosure Rating** | IP65 / IP67 (dust tight and water resistant) | --- ### 3. Connection Pinout (Typical) The LMS-C2-R usually utilizes **M12 circular connectors** for robust industrial connectivity. 1. **Power Connector (5-pin M12):** - Pin 1: L+ (24V DC) - Pin 3: M (Ground) - Pin 2/4/5: Functional Earth or I/O signals. 2. **Data Connector (4-pin M12 D-coded):** - Transmit/Receive pairs for high-speed Ethernet data transmission. --- ### 4. Key Electronic Features * **Multi-Echo Technology:** The electronics are capable of processing multiple reflections from a single pulse, allowing the sensor to "see through" rain, dust, or fog. * **Low Heat Dissipation:** Designed with a compact aluminum housing that acts as a heat sink for the internal laser driver and processor. * **Digital Filtering:** The internal firmware applies median and average filters to the raw distance data before sending it to the host controller (PLC/PC).