seeedstudio
      Items
      Total
      Go to Checkout
      Your cart is empty
      RPLidar A2M6 - The Thinest LIDAR

      RPLidar A2M6 - The Thinest LIDAR

      SKU 110990987
      $600.00
      48 Available
      Ships on
      $570.00/10pcs+
      BACKORDER

      Description

      image.png

      Introduction


      The RPLIDAR A2 is the next generation low cost 360 degree 2D laser scanner (LIDAR) solution developed by SLAMTEC. It can take up to 4000 samples of laser ranging per second with high rotation speed. And equipped with SLAMTEC patented OPTMAG technology, it breakouts the life limitation of traditional LIDAR system so as to work stably for a long time. 


      RPLIDAR A2M5/A2M6 is the enhanced version of 2D laser range scanner(LIDAR). The system can perform 2D 360-degree scan within a 16-meter range. The generated 2D point cloud data can be used in mapping, localization and object/environment modeling.  


      The typical scanning frequency of the RPLIDAR A2 is 10hz (600rpm). Under this condition, the angular resolution will be 0.9°. And the actual scanning frequency can be freely adjusted within the 5-15hz range according to the requirements of users. 


      The RPLIDAR A2 adopts the low cost laser triangulation measurement system developed by SLAMTEC, which makes the RPLIDAR A2 has excellent performance in all kinds of indoor environment and outdoor environment without direct sunlight exposure. Meanwhile, before leaving the factory, every RPLIDAR A2 has passed the strict testing to ensure the laser output power meet the standards of FDA Class I.


      System connection


      The RPLIDAR A2 consists of a range scanner core and the mechanical powering part which makes the core rotate at a high speed. When it functions normally, the scanner will rotate and scan clockwise. And users can get the range scan data via the communication interface of the RPLIDAR and control the start, stop and rotating speed of the rotate motor via PWM. 

      image.png

      The RPLIDAR A2 comes with a rotation speed detection and adaptive system. The system will adjust the angular resolution automatically according to the actual rotating speed. And there is no need to provide complicated power system for RPLIDAR. In this way, the simple power supply schema saves the BOM cost. If the actual speed of the RPLIDAR is required, the host system can get the related data via communication interface.  

      The detailed specification about power and communication interface can be found in the following sections. 


      Mechanism


      The RPLIDAR A2 is based on laser triangulation ranging principle and adopts the high-speed vision acquisition and processing hardware developed by SLAMTEC. The system ranges more than 4000 times per second. blob.png

      During every ranging process, the RPLIDAR emits modulated infrared laser signal and the laser signal is then reflected by the object to be detected. The returning signal is then sampled by vision acquisition system in RPLIDAR and the DSP embedded in RPLIDAR starts processing the sample data and outputs distance value and angle value between object and RPLIDAR via communication interface. 


      When drove by the motor system, the range scanner core will rotate clockwise and perform the 360-degree scan for the current environment.  

      blob.png


      Safety and Scope 


      The RPLIDAR A2 system uses a low power infrared laser as its light source, and drives it by using modulated pulse. The laser emits light in a very short time frame which can ensure its safety to human and pets, and it reaches Class I laser safety standard. 

      image.png

      The modulated laser can effectively avoid the interference from ambient light and sunlight during ranging scanning process, which makes RPLIDAR work excellent in all kinds of indoor environment and outdoor environment without sunlight. 


      Data Output 


      During the working process, the RPLIDAR will output the sampling data via the communication interface. And each sample point data contains the information in the following table. If you need detailed data format and communication protocol, please contact SLAMTEC. 


      Figure 1 - 4 The RPLIDAR Sample Po int Data Information


      Data TypeUnitDescription 
      Distancemm 

      Current measured distance value between the rotating core of the RPLIDAR and the sampling point 

      HeadingdegreeCurrent heading angle of the measurement 
      Start Flag(Bool)Flag of a new scan 
      Checksum
      The Checksum of RPLIDAR return data 

      blob.png

      The RPLIDAR outputs sampling data continuously and it contains the sample point data frames in the above figure. Host systems can configure output format and stop RPLIDAR by sending stop command. For detailed operations please contact SLAMTEC. 


      High Speed Sampling Protocol and Compatibility 


      The RPLIDAR A2 adopts the newly extended high speed sampling protocol for outputting the 4000 times per second laser range scan data. Users are required to update the matched SDK or modify the original driver and use the new protocol to use the 4000 times per second mode of RPLIDAR A2. Please check the related protocol documents for details. 


      The RPLIDAR A2 is compatible with all the communication protocols of previous versions. Users can directly replace the previous RPLIDAR with RPLIDAR A2 and use it in the original system. But in this scenario, the RPLIDAR A2 will work in compatible mode and the system will take range 2000 times per second. 


      Application Scenarios 


      The RPLIDAR can be used in the following application scenarios: 

      • General robot navigation and localization 

      • Environment scanning and 3D re-modeling 

      • Service robot or industrial robot working for long hours o Home service /cleaning robot navigation and localization 

      • General simultaneous localization and mapping (SLAM) 

      • Smart toy’s localization and obstacle avoidance  


       

      Specification


      Measurement Performance 


      • For Model A2M5/A2M6 Only 


      Figure 2 - 1 RPLIDAR Performance  


      ItemUnitMinTypicalMaxComments 
      Distance Range Meter(m) 0.2 -16 Based on white objects with 70% reflectivity 
      Angular RangeDegree -
      --
      Distance Resolution  mm-<0.5-<1.5 meters
      <1% of the distanceAll distance range*
      Angular Resolution 

      Degree

      0.45 0.9 1.3510Hz scan rate
      Sample DurationMillisecond(ms ) -0.25--
      Sample FrequencyHz200040004100
      Scan Rate Hz51015The rate is for a round of scan. The typical value is measured when RPLIDAR takes 400 samples per scan 

      Note: the triangulation range system resolution changes along with distance.


      Laser Power Specification 


      • For Model A2M5/A2M6 Only 


      Figure 2 - 2 RPLIDAR Optical Specification

      ItemUnitMinTypicalMaxComments 

      Laser wavelength

      Nanometer(nm) 775

      785

      795 Infrared Light Band
      Laser powerMilliwatt (mW)-35Peak power
      Pulse lengthMicrosecond(us)608790-
      Laser Safety Class --FDA Class I --

      Note: the laser power listed above is the peak power and the actual average power is much lower than the value.


      Optical Window 

      To make the RPLIDAR A2 working normally, please ensure proper space to be left for its emitting and receiving laser lights when designing the host system. The obscuring of the host system for the ranging window will impact the performance and resolution of RPLIDAR A2. If you need cover the RPLIDAR A2 with translucent materials or have other special needs, please contact SLAMTEC about the feasibility. 

      image.png

      You can check the Mechanical Dimensions chapter for detailed window dimensions. 


      Coordinate System Definition of Scanning Data 


      The RPLIDAR A2 adopts coordinate system of the left hand. The dead ahead of the sensors is the x axis of the coordinate system; the origin is the rotating center of the range scanner core. The rotation angle increases as rotating clockwise. The detailed definition is shown in the following figure: 

      image.png


      Communication interface 


      The RPLIDAR A2 uses separate 5V DC power for powering the range scanner core and the motor system. And the standard RPLIDAR A2 uses XH2.54-5P male socket. Detailed interface definition is shown in the following figure: 

       image.png


      Figure 2 - 6 RPLIDAR External Interface Signal Definition 


      Color SignalName TypeDescription Min TypicalMax 
      RedVCCPowerTotal Power 4.9V 5V5.5V 
      YellowTX

      Output

      Serial port output of the scanner core0V3.3V3.5V
      GreenRX

      Input

      Serial port input of the scanner core 0V3.3V3.5V
      BlackGNDPowerGND0V0V0V
      Blue MOTOCTLInputScan motor /PWM Control Signal (active high, internal pull down) 0V3.3V5V


      Power Supply Interface 


      RPLIDAR A2 takes the only external power to power the range scanner core and the motor system which make the core rotate. To make the RPLIDAR A2 work normally, the host system needs to ensure the output of the power and meet its requirements of the power supply ripple.


      • For Model A2M5/A2M6 Only


      Figure 2 - 7 RPLIDAR Power Supply Specification


      ItemUnitMinTypicalMaxRemark 
      Power Voltage V4.9 55.5 If the voltage exceeds the max value, it may damage the core 
      Power Voltage Ripple mV-2050High ripple may cause the core working failure. 
      System Start Current mA-12001500The system startup requires relatively higher current. 
      Power Current mATBD2002205V Power,power off 
      TBD4506005V Power,power on


      For more technical details, please visit the file below.


      Technical Details

      Dimensions131mm x 101mm x 70mm
      WeightG.W 325g    
      BatteryExclude

      Part List

      RPLIDAR A2M61
      Serial board1

      Reviews

      Questions and Answers

      SUBMIT

        View History

        RPLidar A2M6 - The Thinest LIDAR

        SKU 110990987
        $600.00
        48 Available
        Ships on
        ADD TO CART
        $570.00/10pcs+
        • Best-sellers
        • Description
        • Technical Details
        • Reviews
        • Questions and Answers
        • View History
        Notify me when it's back in stock
        SUBMIT

        Free shipping on your first order over $50 or more. Discounted items included!

        Invalid email address.
        * Discount applys on orders over $50, exclueding shipping fee. Fusion service is excluded from this offer