The **TFV3-R100** is a high-performance, long-range LiDAR (Light Detection and Ranging) sensor developed by Benewake. It is primarily used for industrial automation, traffic monitoring, and security. Below is a breakdown of its electronic components and specifications. --- ### 1. Core Electronic Specifications The TFV3-R100 relies on **ToF (Time of Flight)** technology, calculating distances by measuring the time it takes for a laser pulse to reflect off an object. | Feature | Specification | | :--- | :--- | | **Operating Voltage** | 9V - 36V DC | | **Power Consumption** | ≤ 2.5W | | **Communication Interfaces** | RS-485, RS-232, or CAN (Model dependent) | | **Frame Rate** | 1Hz - 1000Hz (Adjustable) | | **Light Source** | 905nm Laser (Class 1 Eye Safe) | --- ### 2. Key Internal Components The electronic architecture of the TFV3-R100 is divided into three main modules: #### A. Optical Emission & Detection * **Laser Diode:** A 905nm infrared emitter that sends out high-frequency pulses. * **APD (Avalanche Photodiode):** A high-sensitivity receiver capable of detecting weak reflected signals from targets up to 100 meters away. #### B. Signal Processing Unit (MCU/FPGA) * The "brain" of the sensor processes the raw analog signal from the APD. * It performs **Noise Filtering** and **Multi-echo Analysis**, allowing the sensor to distinguish between a physical target and environmental interference like rain or fog. #### C. Interface & Protection Circuitry * **TVS Diodes:** Integrated for Surge and ESD protection. * **Voltage Regulator:** Converts the wide input range (9-36V) into stable logic-level voltages for the processor. --- ### 3. Connection Pinout (Typical) Most TFV3-R100 units use a 7-pin or 8-pin aviation connector. The standard electronic wiring is as follows: | Pin Color | Function | Description | | :--- | :--- | :--- | | **Red** | VCC | Power Supply (9V-36V) | | **Black** | GND | Ground | | **Yellow** | RS485-A / CAN-H | Data Signal High | | **Green** | RS485-B / CAN-L | Data Signal Low | | **White** | Config / RX | Serial Receive | --- ### 4. Hardware Characteristics * **Enclosure Rating:** IP67 (Protects electronics against dust and water immersion). * **Ambient Light Immunity:** The electronic filters allow the sensor to operate in outdoor environments with up to 100klux of sunlight. ---