Hardware + Software

PerceptIn Hardware and Software

DragonFly Sensor Module

DragonFly Sensor Module is a product designed to enable outdoor low-speed autonomous vehicles and robots. The design consists of four hardware-synced high-definition global-shutter cameras (a stereo pair in the front, and a stereo pair in the back), an IMU device, and a Jetson TX1 computing module. This design provides three major functions: perception, localization, and panoramic video streaming.

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  • Synchronized four way cameras
  • Synchronized 9-axis IMU unit
  • Jetson TX1

  • Perception
  • Localization
  • Video streaming

  • Raw image and IMU data recording
  • Obstacle avoidance
  • Visual odometery
  • Parallel driving
  • Perception
    Effective Range (m) 4 ~ 25
    Effecive Brightness (LUX) 500 ~ 95000
    Frame Rate (FPS) 3
    Mean Error of Depth (%) 5% (<10m)
    10% (10 ~ 25m)
    Localisation
    Frame Rate (FPS) 10
    Mean Error 1% (LUX > 55000)
    0.3%~1% (150 < LUX < 55000)
    1.3% (10 < LUX < 150)

    Advantages

    Advantages
    Hardware
    Software
  • Synchronized four way cameras
  • Synchronized 9-axis IMU unit
  • Jetson TX1
  • Ethernet/USB 3.0/HDMI interface software
  • Raw data capture
  • Perception- Obstacle and depth detection
  • Localization-Visual odometery
  • Four–way Video streaming
  • Typical Applications

    Typical Applications
  • Autonomous Vehicles
  • Unmanned Automated Drones
  • Mobile Robots
  • Visual Map Creation
  • Specifications

    Specifications
    Body Size 580 x 120 x 50mm
    Weight 1.5kg
    Material Aluminium Alloy
    Operating Temperature 0-60 degree celcius
    IMU IMU Device MPU9250
    Computing Module Computing Unit Jetson TX1
    Interfaces Gigabit Ethernet/USB 3.0/HDMI
    Input Voltage 12V-19V
    Power Consumption 5W-12W
    Camera Camera Colour
    Shutter Type Global Shutter
    Resolution 1280x720
    Pixel Size H: 3 um, V: 3 um
    Optical Format ¼-inch (4.5mm)
    Dynamic Range 63.9 dB
    Maximum SNR 38 dB
    White Balance Automatic
    Frame Rates 30 FPS
    FOV Horizontal: 80⁰ Vertical: 64⁰
    Distortion -1%(TV)
    Baseline of Stereo Camera 50 cm



    DragonFly 77GHz mmWave Radar

    Based on pulse-echo principle, DragonFly Millimetre-Wave Radar(77GHz) is used to monitor the surroundings of the vehicle, such as Blind Spot Detection (BSD), Lane Change Assistance (LCA), Rear Cross Traffic Alert (RCTA) and Car Door Open Warning (DOW). In addition, it can be used on autonomous vehicles for active obstacle avoidance. For communication, Millimetre-Wave Radar consists of two CAN interfaces that are responsible for data exchange between radar and automobile, and two High- side Drivers that are used to drive external load directly.

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    Typical Application



    Advantages

    Advantages
  • Cost effective
  • Production quality solution for autonomous driving and robotics
  • Sensitive millimeter wave system (e.g. detection of low reflecting objects)
  • Short reaction time (first-time detection), and fast reaction on suddenly appearing obstacles (e.g. pedestrians, changing scenes)
  • Specifications

    Specifications
    Tolerance Temperature -40℃ ~ 100℃
    Material Hybrid sandwich materials which is free of air intervals when the temperature is changed
    Water Absorption ≤ 0.1% in the condition of 23℃/50%RH
    Heat Resistance No degeneration staying beyond 24h in the condition of +90℃ without ventilation
    Anti-Ultraviolet Performance Persistently
    Tendency to Stick with Rain Drops Low water adhesion
    *﹡ The property can be different if synthetic material or density is different, even the same specific material is used.



    DragonFly Sonar

    DragonFly Sonar can recognize and monitor obstacles within 5 meters. It consists of a long-range ultrasonic sensor and an Electronic Control Unit (ECU). The Ultrasonic sensor can transmit short ultrasonic impulses reflected from surrounding objects. Advanced digital processing evaluates signal attributes of the reflected echoes and thus enable state-of-the-art object detection in terms of speed and robustness. DragonFly Sonar supports multichannel operation, providing high measuring update rates and avoiding mutual interference. In addition, DragonFly Sonar can be used on autonomous vehicles for passive obstacle avoidance. The number of sensors can be flexibly configured in lined with different functional requirements.

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    Watch it in Action




    Typical Application



    Advantages

    Advantages
  • Cost effective
  • High quality solution for autonomous driving and robotics
  • Sensitive ultrasonic system(e.g. detection of low reflecting objects)
  • Short reaction time (first-time detection), and fast reaction on suddenly appearing obstacles (e.g. pedestrians, changing scenes)
  • Detection range up to 5m
  • Specifications

    Specifications
    Ultrasonic Sensor
    ECU
    Probe Beam Angle Horizontal:85°
    Vertical:30°
    MCU Horizontal:85°
    Vertical:30°
    Ultrasonic Frequency 58±1kHz Number of Radar Channel 4ch
    Range of Working Temperature -40℃~85℃ Operating Voltage 12V
    Waterproof Level IPx9 Range of Working Temperature -40 ℃ ~ 85 ℃
    Type of Data Analog Communication Type CAN(500 kbps)
    Detection Distance < 5m Vibration, Environment, Reliability Requirements Meet the vehicle regulations
    Blind Zone < 30m
    Number of Obstacles Identified 1



    DragonFly RTK GNSS Module

    The Global Navigation Satellite System (GNSS) is used on autonomous vehicles as a key element of the communication and navigation. The GNSS receiver consists of an antenna and a processor which computes position, time and some other information. Measurements from a minimum of four satellites are required to establish three-dimensional position and time. Accuracy is dependent on the precision of the measurements from the satellites and the relative positions (geometry) of the satellites used.

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    Advantages

    Advantages
  • Support GPS, GLONASS, Beidou and Galileo signals reception
  • Stable phase center guarantees the accuracy of positioning within millimeter-level
  • Strong anti-interference ability to endure the challenging operating environments
  • Small form factor with IP67 ruggedized structure
  • Electrical And Physical Specifications

    Electrical And Physical Specifications
    Electrical Specifications
    Physical Specifications
    Voltage 5V DC Antenna Input 2×TNC
    LNA output 4.75~5.10V, 0~100 mA Temperature Working: -40℃~ +85℃
    Storage: -55℃~ +95℃
    Ripple voltage 100mV p-p(max) Humidity 95% No condensation
    Power consumption 2.3W(typical)

    Functional Ports

    Functional Ports
  • 2× UART (RS232)
  • 1× DC (5.5MM*2.5MM)
  • 2× TNC (Female)
  • GNSS Antenna Specifications

    GNSS Antenna Specifications
    Performance
    Mechanical
    GPS GLONASS L1/L2/L5 Dimensions Φ152*62.2mm
    BDS L1/L2/L3 Connector TNC female
    GALILEO B1/B2/B3 Weight ≤ 500g
    Nominal Impedance E1/E6/E5a/E5b Base Screw Thread 5/8"-11UNC
    Polarization 50Ω
    Environmental
    Axial Ratio LNA RHCP Operating Temperature -40℃~ +85℃
    Gain ≤ 3dB Storage Temperature -55℃~ +85℃
    Noise Figure 40dB(typical) Humidity 95% non-condensing
    Output/Input VSWR ≤ 2dB Water/Dust Resistance IP67
    Operation Voltage .+3.3VDC to +12VDC
    Operation Current 45mA(maximum)

    Foundation Plate Specifications

    Foundation Plate Specifications
    Parameters
    Model M90SD
    Screw Threshold Size 5/8"-11UNC (Top)
    M10 Bottom
    Weight Φ 87×91
    Magnetic Suction 0.18kg
    ≥ 30kg
    Material Aluminium