MicaSense RedEdge-MX Guía de configuración rápida
RedEdge-MX Integration Guide Rev 01
MicaSense RedEdge-MXTM
Multispectral Camera
Integration Guide
Revision: 01 – October 2018
MicaSense, Inc.
Seattle, WA
© 2018 MicaSense, Inc. Page 1 of 19
RedEdge-MX Integration Guide Rev 01
TABLE OF CONTENTS
Introduction and Scope 3
Camera Dimensions and Mass 3
Lens and Imager Information 4
Attachment Points 4
Inputs and Outputs 6
External Power and External Trigger (“PWR/TRG”) 6
Downwelling Light Sensor 2 (DLS 2) 9
Serial and Ethernet Data (“COMM”) 10
Example Integrations 11
Standalone Integration Using Camera, DLS, GPS Module 11
Integration with Aerial Platform for Triggering 12
Deep Integration with Host Platform 13
Addition of Top of Frame Capture to Integration 14
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RedEdge-MX Integration Guide Rev 01
1. Introduction and Scope
This document provides the information required for mechanical and electrical integration of
a MicaSense RedEdge-MX multispectral camera onto a host aircraft.
2. Camera Dimensions and Mass
*All dimensions in mm
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3. Lens and Imager Information
The imager and lens characteristics are:
Field of View
47.2 deg HFOV (5.4 mm Focal Length)
Aspect Ratio
4:3
Sensor size
4.8 mm x 3.6 mm , 1280 x 960 Global Shutter
4. Attachment Points
The RedEdge-MX camera can be attached to the host aircraft using at least 2 of the 4
provided threaded mounting points. It is important to use threaded points opposite of each
other. M3x0.5 screws are used for this purpose.
*All dimensions in mm
CAUTION
Do not use a screw that will extend into the threaded holes by more than 3 mm (0.125”).
Use a washer or other spacer to ensure that the screws do not go into the camera too far.
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NOTE
A very light coating of non-permanent thread locker can be used to prevent the screws
from coming loose due to vibration. Wipe off excess thread locker from screw prior to
insertion.
Recommendations for Installation
●The camera should be installed such that it has a clear view of the area directly below
the aircraft. The “cone” of the lenses (47.2 degrees total Horizontal Field of View)
should be considered in the process of deciding where to mount the camera on the
aircraft or payload bay.
●Thanks to global shutter imager technology, the camera is able to withstand some
vibration without degrading image quality; nevertheless, vibration isolation between
the camera mounting platform and the aircraft is recommended.
●Use of a gimbal is recommended to ensure that the camera is pointing straight down
(with respect to the earth) at all times during flight. This gimbal system need only be a
“servo-driven” gimbal (for pointing as opposed to high-frequency stabilization). A
brushless motor type gimbal (mass-balanced, free-floating) can also be used, but it is
not required.
5. Inputs and Outputs
The RedEdge-MX camera features 3 connectors for interface to peripherals and to the host
aircraft. A fourth connector (USB Type A) is used for the Wi-Fi module (included).
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5.1. External Power and External Trigger (“PWR/TRG”)
●Signal definitions and connector
Pin #
Signal
1
Trigger
2
Ground
3
Power
Connector on Camera
Hirose DF13A-3P-1.25H(51)
Mating Connector
Hirose DF13-3S-1.25C
28AWG wire recommended
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●Power Input
Item
Value
Nominal Voltage
5.0 V DC
Input Voltage
Range
4.0V-15.8V DC
Average Power
3.5 Watts average, 8.0 W peak
(Camera Not Providing Power to
External GPS Module)
4.0 Watts average, 8.5 W peak
(Camera Providing Power to External
GPS Module)
●The average power requirement of the RedEdge-MX integrated with a DLS 2 is
4.0W. However, the camera can require instantaneous power of up to 8.0W
during operation for brief periods of time. Ensure the power supply can
reliably source 8.0W during operation while remaining within the operating
voltage range. Operation outside of the specified input voltage range may
result in unreliable operation or damage to the camera.
●The RedEdge-MX contains under-voltage and over-voltage protection circuitry
which nominally applies at 3.8V and 16.0V. However, over the operating
temperature range these cutoff voltages can vary by up to 0.2V. For reliable
operation, ensure the supply voltage remains within the operating input
voltage range at all times over the full range of operating conditions.
●Trigger input: The camera can be triggered either with a rising-edge pulse,
falling edge pulse or a PWM signal (such as is typically used with standard
servos). When using a PWM signal as the trigger, the camera detects a
transition from a “long” PWM to a “short” PWM (or vice-versa depending on
the configuration setup of the camera)
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Item
Value
Nominal Voltage
3.0 V DC
Voltage Range
0.0 V DC to 5.0 V DC
Absolute Maximum Voltage
5.1 V DC
PWM Trigger Expected Range
1.0 ms to 2.0 ms
CAUTION
Care should be taken when multiple “grounds” are used for power and trigger
of the camera. Only one ground should be connected to the camera – typically
this is the ground that corresponds to the source of the power. If the ground of
the trigger signal and the ground of the power source are different, they should
not be joined together electrically at the camera. Contact
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5.2. Downwelling Light Sensor 2 (DLS 2)
The Downwelling Light Sensor (DLS 2) is an advanced incident light sensor that connects
directly to RedEdge-MX. During a mission, the DLS 2 measures the ambient light and sun
angle for each of the five bands of the camera and records this information in the metadata
of the TIFF images captured by the camera. This information can then be used by
specialized processing tools (like Pix4Dmapper) to correct for global lighting changes in the
middle of a flight, such as those that can happen due to clouds covering the sun.
In addition, the DLS 2 provides GPS data to RedEdge-MX unless GPS data is provided from
an external source as outlined earlier in this guide. If using an alternative GPS source, the
GPS receiver will remain on at very low power (uBlox C/A code GPS @ 5 Hz).
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Measurements and Attachment Points
Height
14.03 mm
Width
46.00 mm
Length
63.50 mm
Weight
49 g
© 2018 MicaSense, Inc. Page 10 of 19
Otros manuales para RedEdge-MX
3
Tabla de contenidos
Otros manuales de Cámara digital de MicaSense
