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Laser altimeter - new design

Started this discussion. Last reply by Amy Chen Oct 1, 2014. 49 Replies

Hi to everyone at DIY Drones!I don't know much about UAVs, my specialization is the design of laser products. I recently made a laser range finder by accident that might be useful in UAVs.It started…Continue

 

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Latest Activity

Laser Developer commented on Nadia Nilsen's blog post LightWare launches the LW20 LiDAR
"@Onno - We have made good progress with this so if you are interested in running tests for us please contact info@lightware.co.za and give Tracy some idea of your application and ask her to add you to the demo list ;)."
May 22
Tom in NOVA commented on Laser Developer's blog post The SF11/C laser altimeter - awesome performance for $249
"Version 1.1 of the firmware does not have the "long range" option available and I will be using this as a rangefinder for an airrifle scope setup from 40-100m. .  Also it does not have the signal strength showing in the terminal…"
Mar 12
Laser Developer commented on Laser Developer's blog post The SF11/C laser altimeter - awesome performance for $249
"At the moment the SF11/C has no firmware update capability unless it is returned to the factory. The changes from Version 1.1 to 1.21 are minor and probably will not affect the performance in any noticeable way. "
Mar 12
Tom in NOVA commented on Laser Developer's blog post The SF11/C laser altimeter - awesome performance for $249
"I have an SF11/C (120m) rangefinder/altimeter with firmware Version 1.1.     Does it need to be updated?   I noticed mention of Version 1.21 in the manual , but cannot find any…"
Mar 12
Laser Developer replied to Tom in NOVA's discussion LE-032 700m Laser RangeFinder vs LightWare SF11/C questions
"Without having all the details - neither product is suitable for wind speed and direction measurement. They both use time-of-flight laser technology but have very different timing systems. 'Scope type laser range finders offer long range, slow…"
Mar 9
Laser Developer replied to iSkyMaster's discussion LiDAR for Pixhawk "or" for dummies? in the group PIXHAWK
"There is very little detailed information available on how a LiDAR works at the electronic and signal processing levels. Most companies that make LiDARs keep their designs private. High level overviews on how a specific LiDAR performs are available…"
Feb 21
Laser Developer replied to iSkyMaster's discussion LiDAR for Pixhawk "or" for dummies? in the group PIXHAWK
"My apologies for being brief. It looks like you are in the process of collecting information. Perhaps these will help: This product is a scanning LiDAR sensor that integrates with the PixHawk FC for sense-and-avoid. This product is a laser…"
Feb 19
Laser Developer replied to iSkyMaster's discussion LiDAR for Pixhawk or for dummies? in the group PIXHAWK
"You might find some more information here."
Feb 18
Laser Developer commented on Alex Williams's blog post Open source underwater glider
"Fabulous!"
Oct 15, 2017
Laser Developer replied to Khushal B's discussion Collision avoidance sensors for flying in dense forest
"@Khushal B - LiDAR systems can work at close and far range equally well. We test the SF40 down at 1m and it is still within spec. Below 1m the accuracy may deteriorate slightly but it still gives useable results. The issue of FOV is always a tricky…"
Oct 8, 2017
Laser Developer replied to Khushal B's discussion Collision avoidance sensors for flying in dense forest
"@Khushal B - In our experience, LiDAR gives good results when measuring to foliage, even against low density leaves on trees and bushes. Using a spinning LiDAR gives great data coverage in one plain but acting on the data for collision avoidance is…"
Oct 5, 2017
Jason Smoker commented on Laser Developer's blog post The SF11/C laser altimeter - awesome performance for $249
"@laser developer any news?"
Sep 3, 2017
Thomas Stanley-Jones commented on Laser Developer's blog post LW20 LiDAR - half the size, twice the performance, infinitely better.
Aug 8, 2017
Thomas Stanley-Jones commented on Laser Developer's blog post LW20 LiDAR - half the size, twice the performance, infinitely better.
"I have two of these now, but am wondering if there are solutions for getting the dual return?  It will be associated with a drone payload and could be connected through a Pixhawk, or Navio2 (RaspPi), or directly through an RFD900 radio if…"
Aug 8, 2017
Laser Developer commented on Chris Anderson's blog post Introducing OpenSolo!
"Thumbs up Chris! We love the Solo as an engineering tool. I personally think it's going to live for much longer than anyone expects. Here's a shot of our research Solo carrying a downwards looking LW20 laser altimeter with a scanning LW20…"
Aug 3, 2017
Laser Developer commented on Hugues's blog post A little laugh - DIY Chickens
"This has become our morning theme music!"
Jul 17, 2017

Profile Information

About Me:
Specialist engineer designing laser range finders
Please tell us a bit about your UAV interest
Laser altimeters and automatic landing sensors
Hometown:
Johannesburg

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Laser Developer's Blog

A step closer to miniature, survey grade LiDAR

Posted on May 15, 2017 at 12:19am 6 Comments

What is the difference between a low cost, hobby grade LiDAR and a much more expensive survey grade LiDAR? The short answer is that there are lots of differences. So the challenge becomes figuring out how to use the latest technology to achieve survey grade performance in a small, low cost…

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DIY LiDAR scanner using the LW20 and a digital servo

Posted on February 20, 2017 at 6:23am 14 Comments

Making a small, low cost laser scanner for sense-and-avoid applications has been a objective of mine for several years. What makes this project challenging is the cost and complexity associated with motors and their drivers to provide the motion, position encoders to provide accurate aiming…

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LW20 LiDAR - half the size, twice the performance, infinitely better.

Posted on October 4, 2016 at 1:56am 34 Comments

LightWare Optoelectronics is proud to share with you some preliminary data on their new miniature laser range finder modules, the LW20 and the SF20 OEM version. These modules will be available later this year and as part of our program of supporting the DIY market we will be offering the OEM…

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Making connections between ArduPilot and laser altimeters easier

Posted on September 3, 2016 at 2:09am 5 Comments

We get lots of help requests from customers trying to configure the PixHawk and other flight controllers that are running ArduPilot software. The existing configuration interfaces, such as those found in Mission Planner, can be confusing, even for experienced users. We've introduced a "drone…

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Comment Wall (4 comments)

At 4:22am on December 22, 2012, MarioT said…
It's a good idea for high precision flight and landing altitude.
At 5:29pm on January 15, 2014, Gary McCray said…

Hi LD,

Thank you for your considerate offer.

I think your device has very significant applications in what I am doing.

Please contact me at grmccray@yahoo.com.

I am very interested, but my primary interest is in using it for scanning for obstacles and openings.

The composite vision system I am currently working on extracts data from multiple (targeted) inputs and assembles it into an information matrix about the surroundings.

Most of the information I currently have available is short range < 10 meters. (structured light and laser scanner)

Your longer range device could provide a much needed extended look ahead capability.

It would be mounted on a pointable and scanable brushless gimbal.

In any case, please contact me at my above Email address.

Best Regards,

Gary

At 11:46pm on November 8, 2015, Dirk Gorissen said…

Hi LD,

Thanks for the kind offer. We are exploring the EMI system, but in any case it would be useful for the GPR based system (which has similar height control requirements). I cant say much about it yet but will post here when we've reached the next milestone.

If you are willing to provide one that would be great (ping me at dgorissen@gmail.com) and I will give due credit but no worries otherwise.

Thanks again

Dirk

At 7:50am on November 13, 2015, Cala said…

Thank's Laser por compartir sus experiencias, me gusta ver las cosas nuevas, como se pueden aplicar en facilitar las tareas Agricolas, soy productora agropecuaria e ingeniera en produccion agropecuaria, si en algo le puedo aportar con mi opinion de usos en el sector no dude en comentarme.

Saludos

Alejandrina

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